| 'New Ways to Play' DS Promo Disc | | Nintendo DS | | - |
| 'Splosion Man (Apr 24, 2009 prototype) | 24 April 2009 17:12:17 | Xbox 360 | Platform | - |
| .Hack Infection Part 1 (Jan 9, 2004 prototype) | 9 January 2004 18:01:59 | PlayStation 2 | Role-playing | - |
| 0 Day Attack on Earth (Oct 16, 2009 prototype) | 16 October 2009 22:33:43 | Xbox 360 | Arcade | - |
| 007: Blood Stone (Jul 13, 2010 prototype) | 13 July 2010 17:13:10 | Xbox 360 | Third Person Shooter | - |
| 007: Blood Stone (Jul 17, 2010 prototype) | 17 July 2010 16:00:48 | Xbox 360 | Third Person Shooter | - |
| 007: Blood Stone (Jul 28, 2010 prototype) | 28 July 2010 17:29:41 | Xbox 360 | Third Person Shooter | - |
| 007: Blood Stone (Jul 30, 2010 prototype) | 30 July 2010 15:52:58 | Xbox 360 | Third Person Shooter | - |
| 007: Blood Stone (Jun 10, 2010 prototype) | 10 June 2010 16:10:36 | Xbox 360 | Third Person Shooter | - |
| 007: Blood Stone (Jun 3, 2010 prototype) | 3 June 2010 16:32:30 | Xbox 360 | Third Person Shooter | - |
| 007: Blood Stone (May 21, 2010 prototype) | 21 May 2010 12:35:58 | Xbox 360 | Third Person Shooter | - |
| 007: Blood Stone (May 27, 2010 prototype) | 27 May 2010 15:37:27 | Xbox 360 | Third Person Shooter | - |
| 007: Everything or Nothing (Dec 12, 2003 prototype) | 12 December 2003 03:48:28 | PlayStation 2 | Third-Person Shooter | - |
| 007: Everything or Nothing (Jan 7, 2004 prototype) | 7 January 2004 14:05:08 | Xbox | Action-Adventure, Stealth | - |
| 007: From Russia with Love (Aug 16, 2005 prototype) | 16 August 2005 13:47:38 | PlayStation 2 | Action | - |
| 007: From Russia with Love (Aug 23, 2005 prototype) | 23 August 2005 | PlayStation 2 | Action | - |
| 007: From Russia with Love (Dec 5, 2005 debug build) | 5 December 2005 17:09:34 | Xbox | Action | - |
| 007: From Russia with Love (Jul 13, 2005 prototype) | 13 July 2005 14:32:31 | Xbox | Action | - |
| 007: From Russia with Love (Sep 11, 2005 prototype) | 11 September 2005 07:43:47 | Xbox | Action | - |
| 007: From Russia with Love (Sep 25, 2005 prototype) | 25 September 2005 18:39:29 | PlayStation 2 | Action | - |
| 007: From Russia with Love (Sep 30, 2005 prototype) | 30 September 2005 07:02:59 | Xbox | Action | - |
| 007: Legends (Apr 12, 2012 prototype) | 12 April 2012 15:46:52 | Xbox 360 | First Person Shooter | - |
| 007: Legends (Apr 5, 2012 prototype) | 5 April 2012 10:51:43 | Xbox 360 | First Person Shooter | - |
| 007: Legends (Aug 24, 2012 prototype) | 24 August 2012 | Xbox 360 | First Person Shooter | - |
| 007: Legends (Aug 31, 2012 prototype) | 31 August 2012 15:06:55 | Xbox 360 | First Person Shooter | - |
| 007: Legends (Aug 7, 2012 prototype) | 7 August 2012 | Xbox 360 | FPS | - |
| 007: Legends (Jul 19, 2012 prototype) | 19 July 2012 11:14:25 | Xbox 360 | First Person Shooter | - |
| 007: Legends (Jun 15, 2012 prototype) | 15 June 2012 09:50:32 | Xbox 360 | First Person Shooter | - |
| 007: Legends (Jun 18, 2012 prototype) | 18 June 2012 | Xbox 360 | FPS | - |
| 007: Legends (May 21, 2012 prototype) | 21 May 2012 01:47:56 | Xbox 360 | First Person Shooter | - |
| 007: Legends (May 9, 2012 prototype) | 9 May 2012 17:26:54 | Xbox 360 | First Person Shooter | - |
| 007: Legends (Nov 13, 2012 prototype) | 13 November 2012 | Xbox 360 | FPS | - |
| 007: Legends (Nov 16, 2011 prototype) | 16 November 2011 00:00:00 | Xbox 360 | First Person Shooter | - |
| 007: Legends (Oct 17, 2012 prototype) | 17 October 2012 15:23:36 | Xbox 360 | First Person Shooter | - |
| 007: Legends (Oct 9, 2012 prototype) | 9 October 2012 00:00:00 | Xbox 360 | First Person Shooter | - |
| 007: Legends (Sep 1, 2012 prototype) | 1 September 2012 11:47:58 | Xbox 360 | First Person Shooter | - |
| 007: Legends (Sep 10, 2012 prototype) | 10 September 2012 02:02:15 | Xbox 360 | First Person Shooter | - |
| 007: Legends (Sep 11, 2012 08.30 prototype) | 11 September 2012 08:30:10 | Xbox 360 | First Person Shooter | - |
| 007: Legends (Sep 11, 2012 13.55 prototype) | 11 September 2012 13:55:16 | Xbox 360 | First Person Shooter | - |
| 007: Legends (Sep 14, 2012 prototype) | 14 September 2012 02:26:07 | Xbox 360 | First Person Shooter | - |
| 007: Legends (Sep 18, 2012 prototype) | 18 September 2012 18:20:08 | Xbox 360 | First Person Shooter | - |
| 007: Legends (Sep 20, 2012 prototype) | 20 September 2012 10:32:01 | Xbox 360 | First Person Shooter | - |
| 007: Legends (Sep 26, 2012 prototype) | 26 September 2012 13:18:39 | Xbox 360 | First Person Shooter | - |
| 007: Legends (Sep 27, 2012 13.31 prototype) | 27 September 2012 13:31:59 | Xbox 360 | First Person Shooter | - |
| 007: Legends (Sep 27, 2012 15.08 prototype) | 27 September 2012 15:08:36 | Xbox 360 | First Person Shooter | - |
| 007: Legends (Sep 7, 2012 prototype) | 7 September 2012 19:40:08 | Xbox 360 | First Person Shooter | - |
| 007: Legends (Sep 8, 2012 prototype) | 8 September 2012 19:24:27 | Xbox 360 | First Person Shooter | - |
| 007: Nightfire (Oct 18, 2002 prototype) | 18 October 2002 05:59:30 | Xbox | First-person shooter | - |
| 007: The World Is Not Enough (Aug 26, 2000 prototype) | 26 August 2000 | PlayStation | First-person shooter, stealth | - |
| 007: The World is Not Enough (Dec 15, 1998 prototype) | 15 December 1998 | Nintendo 64 | First-person shooter, stealth | - |
| 007: The World is Not Enough (Prototype A) | | Nintendo 64 | FPS | - |
| 007: The World is Not Enough (Prototype B) | | Nintendo 64 | FPS | - |
| 007: Tomorrow Never Dies (Oct 10, 1999 prototype) | 10 October 1999 12:22:26 | PlayStation | Third Person Shooter | - |
| 1 vs. 100 (Apr 14, 2010 Prototype) | 14 April 2010 | Xbox 360 | | - |
| 1 vs. 100 (Dec 7, 2009 prototype) | 7 December 2009 | Xbox 360 | | - |
| 10-Pin Bowling (Game Boy prototype) | | Game Boy | Bowling | ✓ |
| 100 Bullets (Apr 22, 2004 prototype) | 22 April 2004 | Xbox | Action | ✓ |
| 100 Bullets (Aug 6, 2004 prototype) | 6 August 2004 | Xbox | Action | ✓ |
| 100 Bullets (Jun 30, 2004 prototype) | 30 June 2004 | PlayStation 2 | Action | ✓ |
| 100 Bullets (Oct 8, 2003 prototype) | 8 October 2003 | Xbox | Third Person Shooter | ✓ |
| 101 Dalmatians (Aug 14, 1996 prototype) | 14 August 1996 06:07:02 | Sega Pico | Educational | - |
| 101 Dalmatians (Aug 16, 1996 prototype) | 16 August 1996 05:19:20 | Sega Pico | Educational | - |
| 101 Dalmatians (Aug 17, 1996 prototype B) | 17 August 1996 06:47:28 | Sega Pico | Educational | - |
| 101 Dalmatians (Aug 17, 1996 prototype J) | 16 August 1996 20:56:56 | Sega Pico | Educational | - |
| 101 Dalmatians (Aug 17, 1996 prototype U) | 16 August 1996 18:59:48 | Sega Pico | Educational | - |
| 101 Dalmatians (Jul 18, 1996 prototype) | 18 July 1996 12:31:08 | Sega Pico | Educational | - |
| 101 Dalmatians (Jul 3, 1996 prototype) | 3 July 1996 11:22:50 | Sega Pico | Educational | - |
| 101 Dalmatians (Jul 5, 1996 prototype) | 7 July 1996 13:11:32 | Sega Pico | Educational | - |
| 101 Dalmatians (May 21, 1996 prototype) | 21 May 1996 17:26:14 | Sega Pico | Educational | - |
| 101 Dalmatians (May 31, 1996 prototype) | 31 May 1996 08:51:22 | Sega Pico | Educational | - |
| 18 Wheeler: American Pro Trucker (Apr 5, 2001 prototype) | 5 April 2001 22:04:22 | Dreamcast | Racing | - |
| 18 Wheeler: American Pro Trucker (Feb 2, 2001 prototype) | 2 February 2001 04:11:28 | Dreamcast | Racing | - |
| 18 Wheeler: American Pro Trucker (Nov 12, 2001 prototype) | 12 November 2001 | Nintendo GameCube | Racing | - |
| 1942: Joint Strike (Apr 17, 2008 prototype) | 17 April 2008 | Xbox 360 | Shoot Em Up | - |
| 1943: The Battle of Midway (Prototype B) | | NES | Shooter | - |
| 1943: The Battle of Midway (Prototype C) | | NES | Shooter | - |
| 1943: The Battle of Midway (Prototype) | | NES | Shooter | - |
| 1C Company Gamescom 2009 Press Kit | | Other | | - |
| 1C Company Gamescom 2009 Public Kit | | Other | | - |
| 2 Games in 1: The SpongeBob SquarePants Movie / Battle for Bikini Bottom (Nov 10, 2005 prototype) | 10 November 2005 | Nintendo GameCube | Compilation | - |
| 2 in 1: Dora the Explorer Double Pack (Prototype) | | Game Boy Advance | Compilation | - |
| 2002 World Cup PK (PAL prototype) | | NES | | ✓ |
| 2010 FIFA World Cup South Africa (Feb 10, 2010 German and French prototype) | 10 February 2010 | PlayStation Portable | Sports | - |
| 2010 FIFA World Cup South Africa (Jan 23, 2010 prototype) | 23 January 2010 | Xbox 360 | Sports | - |
| 2010: The Graphic Action Game (Nov 9, 1984 prototype) | 9 November 1984 | ColecoVision | Puzzle | - |
| 2010: The Graphic Action Game (RV44 prototype) | | ColecoVision | Puzzle | - |
| 2097 ROM Pack II | | Game Boy | Test cartridge | - |
| 2420 ROM Pack V | | Game Boy | Test cartridge | - |
| 2440 ROM Pack | | Game Boy | Test cartridge | - |
| 24: The Game (Dec 13, 2005 prototype) | 13 December 2005 22:51:40 | PlayStation 2 | Third-person shooter | - |
| 24: The Game (Jan 10, 2006 prototype) | 10 January 2006 | PlayStation 2 | Third-person shooter | - |
| 24: The Game (Jan 9, 2006 prototype) | 9 January 2006 01:29:18 | PlayStation 2 | Third-person shooter | - |
| 24: The Game (Nov 28, 2005 prototype) | 28 November 2005 10:18:41 | PlayStation 2 | Third-person shooter | - |
| 25 to Life (Dec 8, 2005 prototype) | 8 December 2005 | Xbox | Third-person shooter | - |
| 25 to Life (May 24, 2005 prototype) | 24 May 2005 23:53:09 | PlayStation 2 | Third-person shooter | - |
| 2Xtreme (Aug 29, 1996 prototype) | 29 August 1996 13:02:18 | PlayStation | Racing | - |
| 3 on 3 NHL Arcade (Dec 1, 2008 prototype) | 1 December 2008 | Xbox 360 | Sports - Hockey | - |
| 3 on 3 NHL Arcade (Dec 17, 2008 prototype) | 17 December 2008 | Xbox 360 | Sports - Hockey | - |
| 3-D Genesis (prototype) | | Atari 2600 | Shoot 'em up | ✓ |
| 3-D Rubik's Cube (prototype) | | Atari 2600 | Puzzle | ✓ |
| 3-D Zapper (Dec 15, 1982 prototype) | 15 December 1982 | Atari 2600 | Shoot 'em up | ✓ |
| 3-D Zapper (prototype 2) | | Atari 2600 | Shoot 'em up | ✓ |
| 3D Action (prototype) | | Nintendo DS | | ✓ |
| 3D Baseball (Aug 30, 1996 prototype) | 30 August 1996 20:30:23 | Sega Saturn | Sports - Baseball | - |
| 3D Baseball (Aug 6, 1996 prototype) | 6 August 1996 16:31:40 | Sega Saturn | Sports - Baseball | - |
| 3D Baseball (Oct 16, 1996 prototype) | 16 October 1996 07:17:52 | Sega Saturn | Sports - Baseball | - |
| 3D Baseball (Sep 19, 1996 prototype) | 19 September 1996 18:35:56 | Sega Saturn | Sports - Baseball | - |
| 3D Challenge (Tech Demo) (E3 prototype) | | Nintendo 3DS | | - |
| 3D Gunner (Prototype) | | Sega Master System | Shooter | ✓ |
| 3D Lemmings (Aug 23, 1995 prototype) | 23 August 1995 15:41:06 | PlayStation | Puzzle | - |
| 3D Lemmings (Aug 8, 1995 prototype) | 8 August 1995 15:36:48 | PlayStation | Puzzle | - |
| 3D Pinball: Space Cadet (Apr 26, 1995 prototype) | 26 April 1995 18:49:55 | PC | Pinball | - |
| 3D Pinball: Space Cadet (July 3, 1995 prototype) | 3 July 1995 05:30:00 | PC | Pinball | - |
| 3D Pinball: Space Cadet (June 12, 1995 prototype) | 12 June 1995 23:02:24 | PC | Pinball | - |
| 3D Pinball: Space Cadet (June 16, 1995 prototype) | 16 June 1995 20:41:19 | PC | Pinball | - |
| 3D Pinball: Space Cadet (June 27, 1995 prototype) | 27 June 1995 17:19:44 | PC | Pinball | - |
| 3D Pinball: Space Cadet (May 12, 1995 prototype) | 12 May 1995 16:36:21 | PC | Pinball | - |
| 3D Pinball: Space Cadet (May 26, 1995 prototype) | 26 May 1995 17:33:35 | PC | Pinball | - |
| 3D Pocket Pool (Prototype) | | Game Boy Color | Pool | - |
| 3D Roam (prototype) | | Commodore 64 | Action | ✓ |
| 3D Terrain (2001 tech demo) | | Game Boy Advance | | ✓ |
| 3D Ultra Mini Golf (Mar 17, 2007 prototype) | | Xbox 360 | Sports | - |
| 3D Ultra MiniGolf Adventures 2 (Jul 23, 2010 prototype) | 23 July 2010 | Xbox 360 | Golf | - |
| 3D Ultra Minigolf Adventures (DLC Lost Island A prototype) | | Xbox 360 | Golf | - |
| 3D Ultra Minigolf Adventures (DLC Lost Island B prototype) | | Xbox 360 | Golf | - |
| 3DO M2 Shooter Demo | | Panasonic M2 | Tech Demo | - |
| 4 Wheel Thunder (Jan 26, 2000 prototype) | 26 January 2000 16:32:38 | Dreamcast | Racing | - |
| 4 Wheel Thunder (Jan 29, 2000 prototype) | 29 January 2000 18:00:12 | Dreamcast | Racing | - |
| 4 Wheel Thunder (Mar 31, 2000 prototype) | 31 March 2000 19:36:08 | Dreamcast | Racing | - |
| 4 Wheel Thunder (Nov 5, 1999 prototype) | 5 November 1999 13:57:00 | Dreamcast | Racing | - |
| 4 in 1 (Feb 19, 1987 prototype) | 19 February 1987 | Atari 2600 | Various | ✓ |
| 40 Winks (Oct 7, 1999 prototype) | 7 October 1999 11:30:42 | Nintendo 64 | Platform | - |
| 4x4 Evo 2 (Feb 27, 2002 prototype) | 27 February 2002 19:02:34 | PlayStation 2 | Racing | - |
| 4x4 Evolution (Jan 9, 2001 prototype) | 9 January 2001 11:47:12 | Dreamcast | Racing | - |
| 4×4 Off-Roaders (prototype) | | Game Boy Advance | Racing | ✓ |
| 500 Years After (Mar 1, 1993 prototype) | 1 March 1993 | Philips CD-i | FMV | - |
| 64DD IPL (US Prototype) | | | Development | - |
| 64DD IPL Disk (v1.0) | | Nintendo 64DD | Development | - |
| 64DD IPL Disk (v1.1) | | Nintendo 64DD | Development | - |
| 64DD TOOL IPL (Development Drive) | | | Development | - |
| 666: The Number of the Beast (Jun 5, 1989 prototype) | 5 June 1989 | Commodore 64 | Adventure | ✓ |
| 6GUN (May 31, 2005 prototype) | 31 May 2005 22:28:48 | PlayStation 2 | Third person shooter | ✓ |
| 7 Sins (Sep 29, 2004 prototype) | 29 September 2004 | PlayStation 2 | Life simulation game | - |
| 7th Guest (Feb 4, 1994 prototype) | 4 February 1994 12:05:41 | Philips CD-i | First-Person Adventure | - |
| 8 Kings (Aug 7, 2003 prototype) | 7 August 2003 | N-Gage | | ✓ |
| 8 Kings (Jun 5, 2003 prototype) | 5 June 2003 | N-Gage | | ✓ |
| 8 Kings (May 9, 2003 prototype) | 9 May 2003 | N-Gage | | ✓ |
| 8 Kings (Nov 18, 2003 prototype) | 18 November 2003 | PC | | ✓ |
| 8 Kings (Oct 23, 2003 prototype) | 23 October 2003 | N-Gage | | ✓ |
| 8 in 1 (Nov 16, 1992 prototype) | | Atari 2600 | Compilation | ✓ |
| 8Ball Allstars (Aug 15, 2008 Pool prototype) | 15 August 2008 15:55:36 | Nintendo DS | Pool | - |
| 8Ball Allstars (Feb 11, 2008 prototype) | 11 February 2008 21:06:18 | Nintendo DS | Pool | - |
| 8Ball Allstars (Feb 26, 2008 prototype) | 26 February 2008 12:43:36 | Nintendo DS | Pool | - |
| 90 Minutes: European Prime Goal (prototype) | | SNES | Sports | - |
| 90 Minutes: Sega Championship Football (Sep 18, 2001 prototype) | 18 September 2001 | Dreamcast | Sports - Football | - |
| A Boy and His Blob (Jul 21, 2005 prototype) | 21 July 2005 19:32:00 | Nintendo DS | Puzzle | ✓ |
| A Boy and His Blob (May 16, 2005 prototype) | 16 May 2005 14:40:00 | Nintendo DS | Puzzle | ✓ |
| A Bug's Life (Nov 18, 1998 prototype) | 18 November 1998 | PlayStation | Platform | - |
| A Farewell To Dragons (Nov 20, 2009 prototype) | 20 November 2009 | PC | Action, Role-Playing | - |
| A Hat in Time (Feb 20, 2014 prototype) | 20 February 2014 05:44:21 | PC | Platformer | - |
| A Hat in Time (Mar 26, 2014 prototype) | 26 March 2014 | PC | Platformer | - |
| A Hat in Time (Mar 30, 2015 prototype) | 30 March 2015 | PC | Platformer | - |
| A Kingdom for Keflings (Apr 14, 2009 prototype) | 14 April 2009 | Xbox 360 | Strategy | - |
| A Kingdom for Keflings (Aug 30, 2008 prototype) | 30 August 2008 | Xbox 360 | Strategy, Simulation | - |
| A Kingdom for Keflings (Oct 29, 2008 prototype) | 29 October 2008 | Xbox 360 | Strategy | - |
| A Night in Nylon City (Oct 28, 1994 prototype) | 28 October 1994 | Philips CD-i | FMV | - |
| A Week of Garfield (Prototype) | | NES | Platformer | - |
| A Week of Garfield (Ver 0.9 prototype) | | NES | Platformer | - |
| A World of Keflings (Feb 27, 2010 prototype) | 27 February 2010 00:24:23 | Xbox 360 | Strategy | - |
| A World of Keflings (Oct 19, 2010 prototype) | 19 October 2010 | Xbox 360 | Strategy | - |
| A-Max Boxing (prototype) | | Nintendo DS | Sports | ✓ |
| A-Max Tennis (prototype) | | Nintendo DS | Sports | ✓ |
| A-Team (Mar 30, 1984 prototype) | | Atari 2600 | | ✓ |
| A-Team (May 8, 1984 prototype) | | Atari 2600 | | ✓ |
| A.J.'s World of Discovery (Apr 5, 1993 prototype) | 5 April 1993 | PC | Educational adventure | - |
| AGB Aging Cartridge (1.0) | | Game Boy Advance | | - |
| AGB Aging Cartridge (9.0) | | Game Boy Advance | | - |
| AGING-NTR (Aug 18, 2004 prototype) | 18 August 2004 | Nintendo DS | Diagnostic | ✓ |
| AH-64D Apache (Mar 26, 2003 prototype) | 26 March 2003 15:11:27 | PlayStation 2 | Action | - |
| AMF Bowling (Prototype) | | Game Boy Color | Bowling | ✓ |
| ATP Tour Championship Tennis (Aug 2, 1994 prototype) | 2 August 1994 16:39:48 | Sega Mega Drive | Sports - Tennis | - |
| ATP Tour Championship Tennis (Aug 5, 1994 prototype) | 5 August 1994 05:22:18 | Sega Mega Drive | Sports - Tennis | - |
| ATP Tour Championship Tennis (Aug 8, 1994 prototype) | 8 August 1994 15:44:46 | Sega Mega Drive | Sports - Tennis | - |
| ATP Tour Championship Tennis (Jul 19, 1994 prototype) | 19 July 1994 05:43:00 | Sega Mega Drive | Sports - Tennis | - |
| ATP Tour Championship Tennis (Jul 23, 1994 prototype) | 25 July 1994 12:02:30 | Sega Mega Drive | Sports - Tennis | - |
| ATP Tour Championship Tennis (May 9, 1994 prototype) | 26 May 1994 21:33:22 | Sega Mega Drive | Sports - Tennis | - |
| ATP Tour Championship Tennis (Sep 19, 1994 prototype) | 19 September 1994 05:53:12 | Sega Mega Drive | Sports - Tennis | - |
| ATP Tour Championship Tennis (Sep 8, 1994 prototype) | 14 September 1994 06:10:28 | Sega Mega Drive | Sports - Tennis | - |
| ATV Offroad Fury 3 (Aug 22, 2004 prototype) | 22 August 2004 | PlayStation 2 | Racing | - |
| ATV Offroad Fury 3 (Aug 6, 2004 prototype) | 6 August 2004 15:03:14 | PlayStation 2 | Racing | - |
| ATV Offroad Fury 3 (Jul 23, 2004 prototype) | 23 July 2004 06:01:15 | PlayStation 2 | Racing | - |
| ATV Offroad Fury 3 (Jun 8, 2004 prototype) | 8 June 2004 13:10:10 | PlayStation 2 | Racing | - |
| ATV Offroad Fury 3 (Nov 8, 2004 prototype) | 8 November 2004 11:47:45 | PlayStation 2 | Racing | - |
| ATV Offroad Fury 3 (Nov 9, 2004 prototype) | 9 November 2004 13:37:38 | PlayStation 2 | Racing | - |
| ATV Offroad Fury 3 (Oct 13, 2004 prototype) | 13 October 2004 20:11:01 | PlayStation 2 | Racing | - |
| ATV Offroad Fury 4 (Oct 2, 2006 prototype) | 2 October 2006 | PlayStation 2 | Sports, Driving/Racing | - |
| ATV Offroad Fury Pro (Sep 25, 2006 prototype) | 25 September 2006 | PlayStation Portable | Sports, Driving/Racing | - |
| ATV Offroad Fury Pro (Sep 4, 2006 prototype) | 4 September 2006 | PlayStation Portable | Sports, Driving/Racing | - |
| ATV3: Lawless (May 7, 2005 prototype) | 7 May 2005 | Xbox | Racing | ✓ |
| ATV: Quad Power Racing (Jul 4, 2000 prototype) | 4 July 2000 18:29:56 | PlayStation | Racing | - |
| ATV: Quad Power Racing 2 (Dec 12, 2002 prototype) | 12 December 2002 17:58:28 | Xbox | Racing | - |
| ATV: Quad Power Racing 2 (Dec 2, 2002 prototype) | 2 December 2002 14:17:00 | PlayStation 2 | Racing | - |
| ATV: Quad Power Racing 2 (Nov 11, 2002 prototype) | 11 November 2002 21:08:29 | Xbox | Racing | - |
| ATV: Quad Power Racing 2 (Nov 6, 2002 prototype) | 6 November 2002 | PlayStation 2 | Racing | - |
| ATV: Quad Power Racing 2 (Oct 11, 2002 prototype) | 11 October 2002 18:01:57 | Nintendo GameCube | Racing | - |
| ATV: Quad Power Racing 2 (Oct 2, 2002 prototype) | 2 October 2002 14:10:27 | Xbox | Racing | - |
| ATV: Quad Power Racing 2 (Oct 7, 2002 prototype) | 7 October 2002 12:17:58 | PlayStation 2 | Racing | - |
| ATV: Quad Power Racing 2 (Sep 30, 2002 prototype) | 30 September 2002 20:41:12 | PlayStation 2 | Racing | - |
| ATWINMON v1.13 INET (Sep 8, 2003 prototype) | 8 September 2003 15:37:20 | PlayStation 2 | Test Application | - |
| Aaahh!!! Real Monsters (Jul 7, 1995 prototype) | 7 July 1995 | Sega Mega Drive | Adventure | - |
| Aardman Intro (Tech Demo) (prototype) | 22 February 2004 | Game Boy Advance | Tech Demos | ✓ |
| Abomination: The Nemesis Project (Sep 15, 1999 prototype) | 15 September 1999 | PC | | - |
| Absolute X (Prototype) | | Game Boy Color | Shooter | ✓ |
| Ace Combat 04: Shattered Skies (Aug 27, 2001 prototype) | 27 August 2001 19:51:01 | PlayStation 2 | Combat flight simulator | - |
| Ace Combat 04: Shattered Skies (Nov 14, 2001 prototype) | 15 November 2001 14:33:44 | PlayStation 2 | Combat flight simulator | - |
| Ace Combat 3: Electrosphere (Dec 9, 1999 prototype) | 9 December 1999 01:01:00 | PlayStation | Flight Combat Simulator | - |
| Ace Combat 3: Electrosphere (Jan 7, 2000 prototype) | 7 January 2000 00:00:00 | PlayStation | Flight Combat Simulator | - |
| Ace Combat 5: The Unsung War (Nov 12, 2004 prototype) | 12 November 2004 22:29:38 | PlayStation 2 | Combat flight simulator | - |
| Ace Combat 6: Fires of Liberation (DLC Ace of Aces Mission 03 prototype) | | Xbox 360 | Action, Simulation, Flight Simulator | - |
| Ace Combat 6: Fires of Liberation (DLC Ace of Aces Mission 04 prototype) | | Xbox 360 | Action, Simulation, Flight Simulator | - |
| Ace Combat 6: Fires of Liberation (DLC Aircraft Data Pack02 prototype) | | Xbox 360 | Action, Simulation, Flight Simulator | - |
| Ace Combat 6: Fires of Liberation (DLC Aircraft Data Pack10 Prototype) | | Xbox 360 | Action, Simulation, Flight Simulator | - |
| Ace Combat 6: Fires of Liberation (DLC Battle Royale DL 1 prototype) | | Xbox 360 | Action, Simulation, Flight Simulator | - |
| Ace Combat 6: Fires of Liberation (DLC Battle Royale DL 2 prototype) | | Xbox 360 | Action, Simulation, Flight Simulator | ✓ |
| Ace Combat 6: Fires of Liberation (DLC Siege Battle DL 1 prototype) | | Xbox 360 | Action, Simulation, Flight Simulator | - |
| Ace Combat 6: Fires of Liberation (Oct 4, 2007 prototype) | 4 October 2007 00:00:00 | Xbox 360 | Flight Combat Simulator | - |
| Ace Combat 6: Fires of Liberation (Sep 6, 2007 prototype) | 6 September 2007 00:00:00 | Xbox 360 | Flight Combat Simulator | - |
| Ace Combat Advance (Prototype) | | Game Boy Advance | Flight Combat | - |
| Ace Combat Infinity (EU Multiplayer prototype) | | PlayStation 3 | Action, Flight Simulator | - |
| Ace Combat Infinity (JP Multiplayer prototype) | | PlayStation 3 | Action, Flight Simulator | - |
| Ace Combat Infinity (USA Multiplayer prototype) | | PlayStation 3 | Action, Flight Simulator | - |
| Ace Combat X: Skies of Deception (Aug 1, 2006 prototype) | 1 August 2006 19:01:55 | PlayStation Portable | Shooting | - |
| Ace Combat X: Skies of Deception (Aug 16, 2006 prototype) | 16 August 2006 23:27:31 | PlayStation Portable | Flight Combat | - |
| Ace Combat Zero: The Belkan War (Jun 1, 2006 prototype) | 1 June 2006 20:08:40 | PlayStation 2 | Combat flight simulator | - |
| Ace Combat: Assault Horizon (Aug 23, 2011 prototype) | 23 August 2011 00:00:00 | Xbox 360 | Flight Combat Simulator | - |
| Ace Combat: Assault Horizon (Aug 30, 2011 prototype) | 30 August 2011 | Xbox 360 | Action, Flight Simulator | - |
| Ace Combat: Assault Horizon (Jul 11, 2011 prototype) | 11 July 2011 | Xbox 360 | Air combat simulation | - |
| Ace Combat: Joint Assault (Jun 11, 2010 prototype) | 11 June 2010 18:33:36 | PlayStation Portable | Air Combat Simulation | - |
| Ace Combat: Joint Assault (Jun 14, 2010 JP demo) | 14 June 2010 14:33:34 | PlayStation Portable | Flight Simulator | - |
| Aces of the Galaxy (Apr 14, 2008 prototype) | 14 April 2008 | Xbox 360 | Action, Shooter, Vehicular Combat | - |
| Aces of the Galaxy (Feb 22, 2008 prototype) | 22 February 2008 | Xbox 360 | Third Person Shooter | - |
| Acolyte (Prototype) | | Amstrad CPC | Action | ✓ |
| ActRaiser (Prototype) | | SNES | Platform/city management | - |
| Action Bass (Jun 21, 2000 prototype) | 21 June 2000 18:44:30 | PlayStation | Fishing | - |
| Action Fighter (Prototype) | | Sega Master System | Action | - |
| Actionauts (Jun 22, 1984 prototype) | | Atari 2600 | | ✓ |
| Active Life: Explorer (Jun 9, 2010 prototype) | 9 June 2010 | Nintendo Wii | Exergaming | - |
| Active Life: Magical Carnival (Debug prototype) | | Nintendo Wii | Minigames | - |
| Active Life: Magical Carnival (Nov 7, 2011 prototype) | 7 November 2011 | Nintendo Wii | Minigames | - |
| Activision Classics (Jul 27, 1998 prototype) | 27 July 1998 20:42:44 | PlayStation | Compilation | - |
| Activision E3 2005 Press Kit | | Other | | - |
| Addams Family (Aug 2, 1991 prototype) | 2 August 1991 | NES | Platformer | - |
| Addams Family (Prototype B) | | NES | Platformer | - |
| Addams Family Values (Early SNES Prototype) | | SNES | Action Adventure | - |
| Addams Family Values (Mega Drive Prototype) | | Sega Mega Drive | Action Adventure | - |
| Addams Family Values (Prototype) | | Sega Mega Drive | Action Adventure | - |
| Adhoc Party for Playstation Portable (EU QA Patch Data 1.01 prototype) | | PlayStation 3 | | - |
| Adian no Tsue (Oct 29, 1986 prototype) | 29 October 1986 | FDS | Educational | - |
| Advance Wars (iQue prototype) | | Game Boy Advance | Strategy | - |
| Advanced Daisenryaku - Deutsch Dengeki Sakusen (Mar 7, 1991 prototype) | 7 March 1991 17:35:20 | Sega Mega Drive | Strategy | - |
| Advanced Dungeons & Dragons: Heroes of the Lance (prototype) | | NES | Role-playing | - |
| Advanced Dungeons & Dragons: Hillsfar (Prototype) | | NES | Role Playing | - |
| Advanced Dungeons & Dragons: Pool of Radiance (Prototype) | | NES | Role Playing | - |
| Advent Rising (Apr 22, 2005 prototype) | 22 April 2005 21:47:28 | Xbox | Third-Person Shooter | - |
| Advent Rising (Feb 16, 2005 prototype) | 16 February 2005 12:55:19 | Xbox | Third-Person Shooter | - |
| Adventure Island II (Prototype) | | NES | Platform | - |
| Adventure Island III (Prototype) | | NES | Action | - |
| Adventure Time: Finn and Jake Investigations (Apr 7, 2015 prototype) | 7 April 2015 | Nintendo 3DS | Role-Playing, Action-Adventure | - |
| Adventure Time: Finn and Jake Investigations (Aug 24, 2015 prototype) | 24 August 2015 | Nintendo Wii U | Role-Playing, Action-Adventure | - |
| Adventure Time: Finn and Jake Investigations (Feb 2, 2015 prototype) | 2 February 2015 | Nintendo 3DS | Role-Playing, Action-Adventure | - |
| Adventure Time: Hey Ice King! Why’d you steal our garbage?!! (Jul 20, 2012 Nintendo 3DS prototype) | 20 July 2012 20:27:11 | Nintendo 3DS | Action-adventure | - |
| Adventure Time: Hey Ice King! Why’d you steal our garbage?!! (Jul 20, 2012 Nintendo DS prototype) | 20 July 2012 20:26:41 | Nintendo DS | Action-adventure | - |
| Adventure Time: Hey Ice King! Why’d you steal our garbage?!! (Jun 19, 2012 prototype) | 19 June 2012 | Nintendo 3DS | Action-adventure | - |
| Adventure Time: Hey Ice King! Why’d you steal our garbage?!! (Jun 30, 2012 prototype) | 30 June 2012 14:39:12 | Nintendo 3DS | Action-adventure | - |
| Adventure Time: Hey Ice King! Why’d you steal our garbage?!! (May 11, 2012 prototype) | 11 May 2012 12:49:16 | Nintendo 3DS | Action-adventure | - |
| Adventure Time: The Secret of the Nameless Kingdom (Oct 28, 2014 prototype) | 28 October 2014 | PlayStation Vita | Role-Playing, Action-Adventure | - |
| Adventure Time: The Secret of the Nameless Kingdom (Sep 22, 2014 prototype) | 22 September 2014 | Nintendo 3DS | Role-Playing, Action-Adventure | - |
| Adventures in the Magic Kingdom (Early prototype) | | NES | Action | - |
| Adventures in the Magic Kingdom (Prototype) | | NES | Action | - |
| Adventures of Dr. Franken (Prototype) | | NES | Action | ✓ |
| Adventures of Rad Gravity (Jul 31, 1990 prototype) | 31 July 1990 | NES | Platformer | - |
| Adventures to Go! (Jun 12, 2009 prototype) | 12 June 2009 | PlayStation Portable | Role-playing | - |
| Aegis Wing (Mar 20, 2007 prototype) | 20 March 2007 | Xbox 360 | Shoot Em Up | - |
| Aeon Flux (Aug 13, 2005 prototype) | 13 August 2005 18:11:28 | Xbox | Action-Adventure | - |
| Aeon Flux (Jun 27, 2005 prototype) | 27 June 2005 | PlayStation 2 | Action-adventure | - |
| Aeon Flux (Nov 18, 1996 prototype) | 18 November 1996 | PlayStation | Action | ✓ |
| Aeon Flux (Oct 11, 2005 prototype) | 11 October 2005 | PlayStation 2 | | - |
| Aero Elite: Combat Academy (Dec 12, 2002 prototype) | 12 December 2002 17:54:50 | PlayStation 2 | Flight Combat Simulator | - |
| Aero the Acro-Bat (Game Boy Advance prototype) | | Game Boy Advance | Platformer | - |
| Aero the Acro-Bat (PAL prototype) | | Sega Mega Drive | Platform | - |
| Aero the Acro-Bat 2 (Aug 8, 1994 prototype) | 8 August 1994 | SNES | Action | - |
| Aero-Cross (Nov 26, 2010 prototype) | 26 November 2010 | Xbox 360 | Racing | ✓ |
| AeroGauge (Japanese demo) | | Nintendo 64 | Racing | - |
| Afro Samurai (Dec 1, 2008 prototype) | 1 December 2008 | Xbox 360 | Action | - |
| Afro Samurai (Oct 30, 2008 prototype) | 30 October 2008 | Xbox 360 | Action | - |
| After Burner Climax (Dec 11, 2009 prototype) | 11 December 2009 03:43:31 | Xbox 360 | Action, Shooter, Vehicular Combat | - |
| After Burner Climax (Dec 21, 2009 prototype) | 21 December 2009 | Xbox 360 | Action, Shooter, Vehicular Combat | - |
| Aftershock (May 3, 1995 prototype) | 3 May 1995 15:04:20 | PlayStation | Shooter | - |
| Agaju: The Sacred Path of Treasure (Prototype) | | Gizmondo | Adventure | ✓ |
| Agartha (Apr 17, 2001 prototype) | 17 April 2001 | Dreamcast | Survival Horror | ✓ |
| Agartha (Apr 18, 2001 prototype) | 18 April 2001 00:23:42 | Dreamcast | Survival Horror | ✓ |
| Agartha (Mar 5, 2001 prototype) | 5 March 2001 16:34:14 | Dreamcast | Survival Horror | ✓ |
| Agartha (Mar 9, 2001 prototype) | 9 March 2001 | Dreamcast | Survival Horror | ✓ |
| Age of Booty (Jun 24, 2008 prototype) | 24 June 2008 | Xbox 360 | Real Time Strategy | - |
| Age of Booty (May 28, 2008 prototype) | 28 May 2008 | Xbox 360 | Real Time Strategy | - |
| Age of Empires (Aug 15, 1997 prototype) | 15 August 1997 | PC | | - |
| Age of Empires 2 - Age of Kings (Aug 13, 1998 prototype) | 13 August 1998 | PC | RTS | - |
| Age of Empires 2 - Age of Kings (Feb 22, 1999 prototype) | 22 February 1999 | PC | RTS | - |
| Age of Empires 2 - Age of Kings (Jul 17, 1998 prototype) | 17 July 1998 | PC | RTS | - |
| Age of Empires 2 - Age of Kings (July 1, 1999 prototype) | 1 July 1999 | PC | RTS | - |
| Age of Empires 2 - Age of Kings (June 2, 1999 prototype) | 2 June 1999 | PC | RTS | - |
| Age of Empires 2 - Age of Kings (June 30, 1999 prototype) | 30 June 1999 | PC | RTS | - |
| Age of Empires 2 - Age of Kings (May 13, 1999 prototype) | 13 May 1999 | PC | RTS | - |
| Age of Empires: The Rise of Rome (Aug 5, 1998 prototype) | 5 August 1998 | PC | RTS | - |
| Age of Empires: The Rise of Rome (Sep 15, 1998 prototype) | 15 September 1998 | PC | RTS | - |
| Age of Pirates: Captain Blood (Aug 27, 2004 ECTS demo) | 27 August 2004 | PC | Action-adventure | - |
| Age of Pirates: Captain Blood (Dec 31, 2010 prototype) | 31 December 2010 | PC | Action-adventure | ✓ |
| Age of Pirates: Captain Blood (May 12, 2005 E3 demo) | 12 May 2005 | PC | Action-adventure | - |
| Age of Wonders (Sep 21, 1999 prototype) | 21 September 1999 | PC | Strategy, Role-Playing | - |
| Age of Wonders II: The Wizard's Throne (Apr 17, 2002 prototype) | 17 April 2002 | PC | Strategy | - |
| Aggressive Inline (Aug 21, 2002 prototype) | 21 August 2002 07:53:47 | Xbox | Sports | - |
| Aggressive Inline (Aug 6, 2002 prototype) | 6 August 2002 | Nintendo GameCube | Sports - Skating | - |
| Aggressive Inline (Jul 29, 2002 prototype) | 29 July 2002 | Nintendo GameCube | Sports - Skating | - |
| Aggressive Inline (Mar 2, 2002 prototype) | 2 March 2002 | PlayStation 2 | Sports | - |
| Aggressive Inline (Mar 3, 2002 prototype) | 3 March 2002 | PlayStation 2 | Sports | - |
| Aidyn Chronicles: The First Mage (Apr 10, 2001 prototype) | 10 April 2001 14:55:18 | Nintendo 64 | Role playing | - |
| Aidyn Chronicles: The First Mage (Dec 5, 2000 Prototype) | 5 December 2000 | Nintendo 64 | Action | - |
| Aidyn Chronicles: The First Mage (Feb 1, 2001 Debug) | January 2001 | Nintendo 64 | Role-playing Game | - |
| Aidyn Chronicles: The First Mage (Feb 10, 2000 prototype) | 10 February 2000 13:21:13 | Nintendo 64 | Role playing | - |
| Aidyn Chronicles: The First Mage (Mar 2, 2001 prototype) | 2 March 2001 19:42:35 | Nintendo 64 | Role playing | - |
| Aidyn Chronicles: The First Mage (May 9, 2000 prototype) | 9 May 2000 07:45:51 | Nintendo 64 | Role playing | - |
| Air Fortress (Mar 3, 1989 prototype) | 3 March 1989 | NES | Shoot 'em up/Platformer | - |
| Air Fortress (Prototype) | | FDS | Shooter | ✓ |
| Air Sea Battle (Robert Coppock Demo) | | Atari 2600 | | - |
| Air Zonk (Prototype) | | TurboGrafx-16 | Platformer | - |
| AirBlade (Nov 8, 2001 prototype) | 8 November 2001 11:58:46 | PlayStation 2 | Sports - Inline | - |
| AirCars (Nov 14, 1994 prototype) | 14 November 1994 | Atari Jaguar | Action | - |
| AirForce Delta (Jun 18, 1999 prototype) | 18 June 1999 11:16:54 | Dreamcast | Flight Combat Simulator | - |
| AirForce Delta (Nov 30, 1999 prototype) | 30 November 1999 14:58:26 | Dreamcast | Flight Combat Simulator | - |
| AirMech Arena (Aug 15, 2014 prototype) | 15 August 2014 | Xbox 360 | Vehicular Combat | - |
| Airball (Prototype C) | | NES | Action | ✓ |
| Airblade (Sep 16, 2001 prototype) | 16 September 2001 18:49:31 | PlayStation 2 | Sports | - |
| Airburst (Jul 13, 2008 prototype) | 13 July 2008 | Xbox 360 | Action | ✓ |
| Airlock (prototype) | | Atari 2600 | Action | - |
| Akira (Prototype) | | Sega Mega Drive | Action | ✓ |
| Akuji the Heartless (Oct 14, 1998 prototype) | 14 October 1998 11:28:52 | PlayStation | Action | - |
| Akuji: The Heartless (Nov 11, 1998 prototype) | 11 November 1998 | PlayStation | Action | - |
| Akuu Senki Raijin (Oct 14, 1987 prototype) | 14 October 1987 | FDS | Shoot 'Em Up | - |
| Ala (prototype) | | Commodore 64 | Shoot 'em up | ✓ |
| Aladdin (Aug 13, 1993 prototype) | 13 August 1993 17:50:24 | Sega Mega Drive | Platformer | - |
| Aladdin (Chicago C.E.S demo) | 27 June 1993 | Sega Mega Drive | Platform | - |
| Aladdin (Dec 28, 1993 prototype) | 29 December 1993 11:11:18 | Game Gear | Action Platformer | - |
| Aladdin (Jan 11, 1994 prototype) | 9 January 1994 19:35:30 | Game Gear | Action Platformer | - |
| Aladdin (Jan 13, 1994 prototype) | 13 January 1994 18:05:22 | Game Gear | Action Platformer | - |
| Aladdin (Jan 24, 1994 prototype) | 24 January 1994 19:34:02 | Game Gear | Action Platformer | - |
| Aladdin (Jul 31, 1993 prototype) | 31 July 1993 17:46:24 | Sega Mega Drive | Platformer | - |
| Aladdin (SNES prototype) | | SNES | | - |
| Aladdin's Cave (Commodore 64 prototype A) | | Commodore 64 | Platform | ✓ |
| Aladdin's Cave (Commodore 64 prototype B) | | Commodore 64 | Platformer | ✓ |
| Alan Wake (Jan 11, 2010 prototype) | 11 January 2010 | Xbox 360 | Adventure | - |
| Alan Wake (Mar 25, 2010 prototype) | 25 March 2010 21:49:43 | Xbox 360 | Adventure | - |
| Alan Wake (The Writer DLC Sep 15, 2010 prototype) | 15 September 2010 06:40:00 | Xbox 360 | Shooter, Action-Adventure | - |
| Alan Wake: American Nightmare (May 18, 2011 prototype) | 18 May 2011 | Xbox 360 | Adventure | - |
| Alex Kidd: High-Tech World (Prototype) | | Sega Master System | Action | - |
| Alfred Chicken (Dec 3, 2001 prototype) | 3 December 2001 | PlayStation | Platform | - |
| Alfred Chicken (ECTS Show 1993 Prototype) | | Amiga | Platform | - |
| Alfred Chicken (Jan 25, 2002 prototype) | 25 January 2002 12:52:42 | PlayStation | Platformer | - |
| Alfred Chicken (Prototype) | | Game Boy | Platformer | - |
| Alfred Chicken (SNES prototype) | | SNES | Platformer | - |
| Alias (Dec 12, 2003 prototype) | 12 December 2003 17:27:53 | PlayStation 2 | Action Adventure | - |
| Alias (Dec 8, 2003 prototype) | 8 December 2003 19:25:10 | PlayStation 2 | Action Adventure | - |
| Alias (Feb 6, 2004 prototype) | 6 February 2004 15:11:22 | Xbox | Action-Adventure | - |
| Alias (Jan 10, 2004 prototype) | 10 January 2004 13:46:45 | PlayStation 2 | Action Adventure | - |
| Alias (Jan 12, 2004 prototype) | 12 January 2004 15:56:29 | PlayStation 2 | Action Adventure | - |
| Alias (Jan 14, 2003 prototype) | 14 January 2003 12:46:10 | PlayStation 2 | Action Adventure | - |
| Alias (Jan 24, 2004 11.29 prototype) | 24 January 2004 11:29:42 | PlayStation 2 | Action Adventure | - |
| Alias (Jan 24, 2004 13.45 prototype) | 24 January 2004 13:45:06 | PlayStation 2 | Action Adventure | - |
| Alias (Jan 28, 2004 16.08 Casino Scripts prototype) | 28 January 2004 16:08:56 | PlayStation 2 | Action Adventure | - |
| Alias (Jan 28, 2004 16.08 prototype) | 28 January 2004 16:08:56 | PlayStation 2 | Action Adventure | - |
| Alias (Jan 5, 2004 prototype) | 5 January 2004 15:48:28 | PlayStation 2 | Action Adventure | - |
| Alias (Nov 11, 2003 prototype) | 11 November 2003 21:42:19 | PlayStation 2 | Action Adventure | - |
| Alias (Nov 14, 2003 prototype) | 14 November 2003 17:57:44 | PlayStation 2 | Action Adventure | - |
| Alias (Nov 17, 2003 prototype) | 17 November 2003 16:11:37 | PlayStation 2 | Action Adventure | - |
| Alias (Nov 21, 2003 prototype) | 21 November 2003 16:18:50 | PlayStation 2 | Action Adventure | - |
| Alias (Nov 25, 2003 prototype) | 25 November 2003 19:54:12 | PlayStation 2 | Action Adventure | - |
| Alias (Nov 4, 2002 prototype) | 4 November 2002 19:13:28 | PlayStation 2 | Action Adventure | - |
| Alias (Nov 5, 2002 11.53 prototype) | 5 November 2002 11:53:40 | PlayStation 2 | Action Adventure | - |
| Alias (Nov 5, 2002 12.56 prototype) | 5 November 2002 12:56:24 | PlayStation 2 | Action Adventure | - |
| Alias (Oct 10, 2003 prototype) | 10 October 2003 18:32:52 | Xbox | Action-Adventure | - |
| Alias (Oct 11, 2003 prototype) | 11 October 2003 10:29:54 | PlayStation 2 | Action Adventure | - |
| Alias (Oct 19, 2003 prototype) | 19 October 2003 13:38:10 | PlayStation 2 | Action Adventure | - |
| Alias (Oct 3, 2003 prototype) | 3 October 2003 16:05:23 | PlayStation 2 | Action Adventure | - |
| Alias (Sep 25, 2003 prototype) | 25 September 2003 16:32:01 | PlayStation 2 | Action Adventure | - |
| Alice: Madness Returns (Apr 4, 2011 prototype) | 4 April 2011 | Xbox 360 | Action-adventure | - |
| Alice: Madness Returns (Nov 17, 2010 Prototype) | 17 November 2010 | Xbox 360 | Platformer, Action-Adventure | - |
| Alice: Madness Returns (Sep 16, 2010 Prototype) | 16 September 2010 | Xbox 360 | Platformer, Action-Adventure | - |
| Alien 3 (ANTHROX prototype) | | SNES | Action | - |
| Alien 3 (Commodore 64 prototype) | | Commodore 64 | Platformer | - |
| Alien 3 (FAIRLIGHT prototype) | | SNES | Action | - |
| Alien 3 (PARADOX prototype) | | SNES | Action | - |
| Alien Breed 2: Assault (Jan 11, 2010 prototype) | 11 January 2010 | Xbox 360 | Shooter | - |
| Alien Breed 2: Assault (Nov 20, 2009 prototype) | 20 November 2009 15:16:29 | Xbox 360 | Shooter | - |
| Alien Breed 3: Descent (Jul 16, 2010 prototype) | 16 July 2010 | Xbox 360 | Shooter | - |
| Alien Breed Evolution (Nov 12, 2009 prototype) | 12 November 2009 | Xbox 360 | Action, Shooter, Dual-Joystick Shooter | - |
| Alien Friends (prototype) | | Nintendo DS | Virtual pet | ✓ |
| Alien Front (Mar 26, 2004 prototype) | 26 March 2004 | N-Gage | Action | ✓ |
| Alien Hominid (Milestone 4 prototype) | | Gizmondo | | ✓ |
| Alien Hominid (Sep 24, 2004 prototype) | 24 September 2004 08:40:10 | PlayStation 2 | Shoot-em-Up | - |
| Alien Hominid HD (DLC PDA Games Level Pack 2 prototype) | | Xbox 360 | Shooter | ✓ |
| Alien Hominid HD (DLC PDA Games Level Pack prototype) | | Xbox 360 | Shooter | ✓ |
| Alien Hominid HD (Feb 8, 2007 prototype) | 8 February 2007 | Xbox 360 | Shooter | - |
| Alien Olympics (Amiga prototype) | | Amiga | | ✓ |
| Alien Olympics 2044 AD (Prototype) | | Game Boy | Sports | - |
| Alien Quarantine (prototype) | | Java ME | Action | - |
| Alien Resurrection (Apr 11, 2000 prototype) | 11 April 2000 05:25:30 | PlayStation | First-person shooter | - |
| Alien Resurrection (Aug 19, 1999 prototype) | 19 August 1999 16:30:58 | PlayStation | First-person shooter | - |
| Alien Resurrection (Aug 8, 2000 prototype) | 8 August 2000 01:43:58 | PlayStation | First Person Shooter | - |
| Alien Resurrection (Dec 2, 1998 prototype) | 2 December 1998 01:02:39 | PlayStation | First-person shooter | - |
| Alien Resurrection (Dec 21, 1999 prototype) | 21 December 1999 12:27:00 | PlayStation | First-person shooter | - |
| Alien Resurrection (Feb 2, 2000 prototype) | 2 February 2000 03:07:08 | PlayStation | First-person shooter | - |
| Alien Resurrection (Feb 26, 2000 prototype) | 26 February 2000 03:08:58 | PlayStation | First-person shooter | - |
| Alien Resurrection (Feb 4, 2000 prototype) | 4 February 2000 03:41:52 | PlayStation | First-person shooter | - |
| Alien Resurrection (Jan 5, 2000 prototype) | 5 January 2000 10:35:10 | PlayStation | First-person shooter | - |
| Alien Resurrection (Jul 14, 1999 Prototype) | 14 July 1999 | PlayStation | | - |
| Alien Resurrection (Jul 19, 2000 prototype) | 19 July 2000 11:45:14 | PlayStation | First-person shooter | - |
| Alien Resurrection (Jul 29, 2000 prototype) | 29 July 2000 01:45:40 | PlayStation | First-person shooter | - |
| Alien Resurrection (Jul 31, 2000 prototype) | 31 July 2000 02:18:24 | PlayStation | First-person shooter | - |
| Alien Resurrection (Jul 4, 2000 prototype) | 4 July 2000 02:31:26 | PlayStation | First-person shooter | - |
| Alien Resurrection (Jul 5, 2000 prototype) | 5 July 2000 10:29:48 | PlayStation | First-person shooter | - |
| Alien Resurrection (Jul 7, 2000 prototype) | 7 July 2000 03:41:50 | PlayStation | First-person shooter | - |
| Alien Resurrection (Mar 24, 2000 prototype) | 24 March 2000 03:15:16 | PlayStation | First-person shooter | - |
| Alien Resurrection (Mar 7, 2000 prototype) | 7 March 2000 02:54:34 | PlayStation | First-person shooter | - |
| Alien Resurrection (Mar 9, 2000 prototype) | 9 March 2000 01:38:42 | PlayStation | First-person shooter | - |
| Alien Resurrection (May 12, 1999 prototype) | 12 May 1999 04:37:02 | PlayStation | First-person shooter | - |
| Alien Resurrection (May 26, 2000 prototype) | 26 May 2000 03:42:44 | PlayStation | First-person shooter | - |
| Alien Resurrection (May 30, 2000 prototype) | 30 May 2000 05:38:46 | PlayStation | First-person shooter | - |
| Alien Resurrection (May 6, 2000 prototype) | 6 May 2000 03:00:44 | PlayStation | First-person shooter | - |
| Alien Resurrection (Nov 2, 1998 prototype) | 2 November 1998 15:57:56 | PlayStation | First-person shooter | - |
| Alien Resurrection (Nov 26, 1999 Prototype) | 26 November 1999 | PlayStation | Third Person Shooter | - |
| Alien Resurrection (Oct 19, 1998 prototype) | 19 October 1998 13:26:22 | PlayStation | First-person shooter | - |
| Alien Resurrection (Oct 4, 2000 prototype) | 4 October 2000 02:37:32 | PlayStation | First-person shooter | - |
| Alien Resurrection (Sep 1, 2000 prototype) | 1 September 2000 12:15:18 | PlayStation | First-person shooter | - |
| Alien Syndrome (Apr 11, 2007 prototype) | 11 April 2007 12:02:03 | PlayStation Portable | Shoot 'em up | - |
| Alien Syndrome (May 21, 2007 prototype) | 21 May 2007 | Nintendo Wii | Action | - |
| Alien Syndrome (Prototype) | | Sega Master System | Action | - |
| Alien Trilogy (Jul 23, 1996 prototype) | 23 July 1996 | Sega Saturn | First-person shooter | - |
| Alien vs Predator (Apr 8, 1994 prototype) | 8 April 1994 | Atari Jaguar | FPS | - |
| Alien vs Predator (Aug 18, 1993 prototype) | 18 August 1993 | Atari Jaguar | FPS | - |
| Alien vs Predator (Oct 13, 1993 prototype) | 13 October 1993 | Atari Jaguar | FPS | - |
| Aliens (Jan 22, 2004 prototype) | 22 January 2004 10:12:05 | PlayStation 2 | Tech demo | ✓ |
| Aliens Versus Predator: Extinction (May 2, 2003 prototype) | 2 May 2003 01:45:01 | Xbox | Real-Time Strategy | - |
| Aliens vs Predator (Jan 29, 1999 prototype) | 29 January 1999 | PC | Shooter | - |
| Aliens vs. Predator (Aug 20, 2009 prototype) | 20 August 2009 15:25:59 | Xbox 360 | First Person Shooter | - |
| Aliens vs. Predator (Aug 3, 2009 prototype) | 3 August 2009 01:50:27 | Xbox 360 | First Person Shooter | - |
| Aliens vs. Predator (Dec 15, 2009 prototype) | 15 December 2009 | Xbox 360 | First-person shooter | - |
| Aliens vs. Predator (Dec 2, 2009 prototype) | 2 December 2009 00:00:00 | Xbox 360 | First Person Shooter | - |
| Aliens vs. Predator (Feb 15, 2010 Patch Data prototype) | 15 February 2010 16:48:00 | PlayStation 3 | First-Person Shooter | - |
| Aliens vs. Predator (Jan 11, 2010 prototype) | 11 January 2010 00:00:00 | Xbox 360 | First Person Shooter | - |
| Aliens vs. Predator (Jul 13, 2009 prototype) | 13 July 2009 01:40:39 | Xbox 360 | First Person Shooter | - |
| Aliens vs. Predator (Jul 21, 2008 prototype) | 21 July 2008 08:59:59 | Xbox 360 | First Person Shooter | - |
| Aliens vs. Predator (May 26, 2009 prototype) | 26 May 2009 | Xbox 360 | FPS | - |
| Aliens vs. Predator (Nov 17, 2008 prototype) | 17 November 2008 10:50:19 | Xbox 360 | First Person Shooter | - |
| Aliens vs. Predator (Oct 6, 2008 prototype) | 6 October 2008 12:27:35 | Xbox 360 | First Person Shooter | - |
| Aliens: Alien 2 (Dec 15, 1986 prototype) | 15 December 1986 | FDS | Action | ✓ |
| Aliens: Colonial Marines (Apr 10, 2012 prototype) | 10 April 2012 08:34:45 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 12, 2012 prototype) | 12 April 2012 08:32:37 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 16, 2012 01.11 prototype) | 16 April 2012 01:11:20 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 16, 2012 15.53 prototype) | 16 April 2012 15:53:24 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 17, 2012 prototype) | 17 April 2012 08:20:47 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 18, 2012 prototype) | 18 April 2012 15:24:41 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 19, 2012 08.19 prototype) | 19 April 2012 08:19:02 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 19, 2012 19.27 prototype) | 19 April 2012 19:27:34 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 2, 2012 prototype) | 2 April 2012 01:45:09 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 20, 2012 prototype) | 20 April 2012 07:20:11 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 23, 2012 prototype) | 23 April 2012 01:06:32 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 24, 2012 prototype) | 24 April 2012 19:17:42 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 25, 2012 08.35 prototype) | 25 April 2012 08:35:46 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 25, 2012 21.15 prototype) | 25 April 2012 21:15:44 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 26, 2012 prototype) | 26 April 2012 15:45:26 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 27, 2012 prototype) | 27 April 2012 08:16:35 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 3, 2012 prototype) | 3 April 2012 09:04:11 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 30, 2012 prototype) | 30 April 2012 07:32:25 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 5, 2012 prototype) | 5 April 2012 08:49:05 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Apr 6, 2012 prototype) | 6 April 2012 14:57:13 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Aug 10, 2012 prototype) | 10 August 2012 06:34:35 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Aug 16, 2011 prototype) | 16 August 2011 18:34:53 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Aug 31, 2012 prototype) | 31 August 2012 07:11:30 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Aug 4, 2011 prototype) | 4 August 2011 16:28:01 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Aug 7, 2012 prototype) | 7 August 2012 19:13:16 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Aug 9, 2011 prototype) | 9 August 2011 08:29:58 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Dec 1, 2011 prototype) | 1 December 2011 17:38:10 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Dec 14, 2012 prototype) | 14 December 2012 00:11:09 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Dec 17, 2011 prototype) | 17 December 2011 09:59:14 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Dec 23, 2011 prototype) | 23 December 2011 10:24:36 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 1, 2012 prototype) | 1 February 2012 10:26:45 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 10, 2012 prototype) | 10 February 2012 22:40:48 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 11, 2011 prototype) | 11 February 2011 07:33:15 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 14, 2012 prototype) | 14 February 2012 10:14:28 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 15, 2012 prototype) | 15 February 2012 15:27:36 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 2, 2012 01.59 prototype) | 2 February 2012 01:59:21 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 2, 2012 10.31 prototype) | 2 February 2012 10:31:15 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 20, 2012 prototype) | 20 February 2012 02:03:23 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 21, 2012 prototype) | 21 February 2012 10:15:54 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 22, 2012 prototype) | 22 February 2012 10:53:06 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 24, 2012 prototype) | 24 February 2012 10:12:28 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 28, 2012 prototype) | 28 February 2012 05:24:46 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 3, 2012 prototype) | 3 February 2012 10:03:29 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 5, 2011 prototype) | 5 February 2011 07:32:04 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 6, 2011 prototype) | 6 February 2011 07:32:26 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 7, 2012 prototype) | 7 February 2012 10:05:01 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 8, 2011 prototype) | 8 February 2011 07:33:03 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 8, 2012 prototype) | 8 February 2012 10:18:14 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 9, 2011 prototype) | 9 February 2011 10:00:30 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 9, 2012 18.00 prototype) | 9 February 2012 18:00:49 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Feb 9, 2012 23.19 prototype) | 9 February 2012 23:19:39 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Install Data prototype) | | PlayStation 3 | First-Person Shooter | - |
| Aliens: Colonial Marines (Jan 12, 2012 prototype) | 12 January 2012 10:07:35 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jan 20, 2012 prototype) | 20 January 2012 10:01:18 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jan 27, 2012 prototype) | 27 January 2012 18:27:36 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jan 31, 2012 prototype) | 31 January 2012 05:33:49 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jan 9, 2012 prototype) | 9 January 2012 10:01:50 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jul 10, 2012 prototype) | 10 July 2012 05:10:45 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jul 11, 2012 prototype) | 11 July 2012 05:10:57 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jul 18, 2012 prototype) | 18 July 2012 05:14:26 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jul 19, 2011 prototype) | 19 July 2011 15:33:30 | Xbox 360 | FPS | - |
| Aliens: Colonial Marines (Jul 27, 2012 prototype) | 27 July 2012 05:41:18 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jul 28, 2011 prototype) | 28 July 2011 16:10:09 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jul 29, 2011 prototype) | 29 July 2011 10:05:40 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jun 14, 2011 prototype) | 14 June 2011 17:27:32 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jun 14, 2012 06.01 prototype) | 14 June 2012 06:01:33 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jun 14, 2012 06.53 prototype) | 14 June 2012 06:53:46 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jun 22, 2012 prototype) | 22 June 2012 05:36:11 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Jun 28, 2012 prototype) | 28 June 2012 05:32:00 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Mar 1, 2012 prototype) | 1 March 2012 10:14:25 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Mar 10, 2011 prototype) | 10 March 2011 10:27:05 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Mar 13, 2012 prototype) | 13 March 2012 09:18:30 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Mar 16, 2012 prototype) | 16 March 2012 18:05:55 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Mar 19, 2012 prototype) | 19 March 2012 08:04:20 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Mar 2, 2012 prototype) | 2 March 2012 10:14:52 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Mar 20, 2012 prototype) | 20 March 2012 09:21:56 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Mar 21, 2012 prototype) | 21 March 2012 09:41:24 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Mar 23, 2012 prototype) | 23 March 2012 08:46:23 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Mar 24, 2011 prototype) | 24 March 2011 08:52:52 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Mar 28, 2012 prototype) | 28 March 2012 17:32:05 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Mar 29, 2012 prototype) | 29 March 2012 08:44:39 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Mar 9, 2012 prototype) | 9 March 2012 10:21:12 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (May 1, 2012 prototype) | 1 May 2012 08:42:10 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (May 12, 2011 prototype) | 12 May 2011 12:02:03 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (May 2, 2011 prototype) | 2 May 2011 20:42:03 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (May 29, 2012 prototype) | 29 May 2012 05:45:34 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (May 3, 2012 prototype) | 3 May 2012 08:28:37 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (May 31, 2012 prototype) | 31 May 2012 16:09:48 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (May 4, 2011 prototype) | 4 May 2011 | Xbox 360 | FPS | - |
| Aliens: Colonial Marines (May 4, 2012 prototype) | 4 May 2012 08:27:02 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (May 7, 2012 prototype) | 7 May 2012 01:15:09 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (May 8, 2012 prototype) | 8 May 2012 08:23:50 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Nov 1, 2012 prototype) | 1 November 2012 08:13:42 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Nov 13, 2012 16.24 prototype) | 13 November 2012 16:24:32 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Nov 13, 2012 20.35 prototype) | 13 November 2012 20:35:24 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Nov 15, 2011 prototype) | 15 November 2011 18:02:13 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Nov 16, 2011 10.29 prototype) | 16 November 2011 10:29:33 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Nov 16, 2011 14.27 prototype) | 16 November 2011 14:27:45 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Nov 17, 2011 prototype) | 17 November 2011 10:05:51 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Nov 19, 2012 prototype) | 19 November 2012 20:50:22 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Nov 2, 2011 prototype) | 2 November 2011 09:35:27 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Nov 21, 2011 prototype) | 21 November 2011 10:00:50 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Nov 29, 2011 prototype) | 29 November 2011 10:02:58 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Nov 29, 2012 prototype) | 29 November 2012 22:07:32 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Nov 7, 2011 prototype) | 7 November 2011 10:03:01 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Oct 10, 2012 prototype) | 10 October 2012 06:43:33 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Oct 15, 2012 prototype) | 15 October 2012 06:43:55 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Oct 22, 2012 prototype) | 22 October 2012 06:48:06 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Oct 23, 2012 10.29 prototype) | 23 October 2012 10:29:04 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Oct 23, 2012 21.03 prototype) | 23 October 2012 21:03:46 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Oct 24, 2012 prototype) | 24 October 2012 07:49:29 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Oct 3, 2011 prototype) | 3 October 2011 08:43:17 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Oct 5, 2012 prototype) | 5 October 2012 06:42:24 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Oct 8, 2012 prototype) | 8 October 2012 06:42:17 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Oct 9, 2012 06.43 prototype) | 9 October 2012 06:43:35 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Oct 9, 2012 21.38 prototype) | 9 October 2012 21:38:33 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Sep 13, 2011 prototype) | 13 September 2011 15:12:40 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Sep 24, 2011 prototype) | 24 September 2011 08:48:00 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Sep 25, 2012 prototype) | 25 September 2012 07:04:02 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Sep 29, 2011 prototype) | 29 September 2011 08:46:31 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Sep 30, 2011 prototype) | 30 September 2011 09:34:58 | Xbox 360 | First Person Shooter | - |
| Aliens: Colonial Marines (Sep 6, 2012 prototype) | 6 September 2012 00:00:00 | Xbox 360 | First Person Shooter | - |
| All Kamen Rider: Rider Generation (Jun 2, 2011 prototype) | 2 June 2011 | Nintendo DS | | - |
| All Round Hunter (Apr 16, 2010 prototype) | 16 April 2010 | Xbox 360 | Hunting/Fishing | - |
| All Round Hunter (Apr 20, 2010 prototype) | 20 April 2010 | Xbox 360 | Hunting/Fishing | - |
| All Round Hunter (Mar 5, 2010 prototype) | 5 March 2010 | Xbox 360 | Hunting/Fishing | - |
| All Star Soccer (May 26, 1997 prototype) | 26 May 1997 | PlayStation | | - |
| All Star Tennis 2000 (Localization prototype) | | Game Boy Color | Sports | - |
| All Star Tennis 2000 (Prototype) | | Game Boy Color | Sports | - |
| All Star Tennis 2000 (Sep 13, 1999 prototype) | 13 September 1999 19:06:30 | Game Boy Color | Sports | - |
| All Zombies Must Die! (Oct 10, 2011 prototype) | 10 October 2011 09:47:50 | Xbox 360 | Shooter | - |
| All-Pro Football 2K8 (Jul 11, 2007 prototype) | 11 July 2007 22:06:37 | Xbox 360 | Sports - Football | - |
| All-Star Baseball 2001 (Broken prototype) | | Nintendo 64 | Sports | - |
| All-Star Baseball 2001 (Prototype) | | Nintendo 64 | Sports | - |
| All-Star Baseball 2003 featuring Derek Jeter (Jan 21, 2002 prototype) | 21 January 2002 11:15:18 | Xbox | Sports | - |
| All-Star Baseball 2004 featuring Derek Jeter (Dec 16, 2002 00.08 prototype) | 16 December 2002 00:08:07 | Xbox | Sports | - |
| All-Star Baseball 2004 featuring Derek Jeter (Dec 16, 2002 prototype) | 16 December 2002 14:37:16 | PlayStation 2 | Sports - Baseball | - |
| All-Star Baseball 2004 featuring Derek Jeter (Jan 20, 2003 prototype) | 20 January 2003 10:49:15 | Xbox | Sports | - |
| All-Star Baseball 2005 featuring Derek Jeter (Feb 4, 2004 prototype) | 4 February 2004 23:20:43 | Xbox | Sports | - |
| Alligator People (prototype) | | Atari 2600 | | ✓ |
| Alone In The Dark: The New Nightmare (Jan 31, 2001 prototype) | 31 January 2001 | PlayStation | Adventure | - |
| Alone in the Dark (Apr 8, 2008 prototype) | 8 April 2008 00:00:00 | Xbox 360 | Action Adventure | - |
| Alone in the Dark (May 6, 2008 prototype) | 6 May 2008 | Xbox 360 | Action Adventure | - |
| Alone in the Dark (May 9, 2008 prototype) | 9 May 2008 00:00:00 | Xbox 360 | Action Adventure | - |
| Alone in the Dark (Oct 1, 2008 prototype) | 1 October 2008 | PlayStation 3 | Action Adventure | - |
| Alone in the Dark (Sep 26, 2008 prototype) | 26 September 2008 | PlayStation 3 | Action Adventure | - |
| Alone in the Dark: One-Eyed Jack's Revenge (Mar 21, 1996 prototype) | 21 March 1996 19:35:31 | Sega Saturn | Survival Horror | - |
| Alone in the Dark: The New Nightmare (Apr 9, 2001 prototype) | 9 April 2001 03:56:32 | Dreamcast | Action-adventure | - |
| Alone in the Dark: The New Nightmare (February 21, 2001 prototype) | 21 February 2001 | Game Boy Color | Action-adventure | - |
| Alone in the Dark: The New Nightmare (May 23, 2001 prototype) | 23 May 2001 21:16:16 | Dreamcast | Survival | - |
| Alone in the Dark: The New Nightmare (Prototype) | | Game Boy Color | Survival Horror | - |
| Alpha Beam with Ernie (Dec 22, 1982 prototype) | 22 December 1982 | Atari 2600 | Edutainment | - |
| Alpha Beam with Ernie (May 5, 1983 prototype) | 5 May 1983 | Atari 2600 | Edutainment | - |
| Alpha Mission (Japanese prototype) | | NES | Shoot 'em up | - |
| Alpha Protocol (Mar 25, 2010 prototype) | 25 March 2010 | Xbox 360 | Action role-playing | - |
| Alpha Protocol (May 4, 2009 prototype) | 4 May 2009 | Xbox 360 | Action role-playing | - |
| Alpine Racer 3 (Sep 2002 prototype) | | PlayStation 2 | Racing | - |
| Alter Echo (Jun 4, 2003 prototype) | 4 June 2003 04:46:36 | PlayStation 2 | Action Adventure | - |
| Altered Beast (Mar 31, 2009 prototype) | 31 March 2009 | Xbox 360 | Action, Brawler, Platformer | - |
| Altered Space: A 3-D Alien Adventure (Feb 15, 1991 prototype) | 15 February 1991 | Game Boy | Adventure | - |
| Amazing Spider-Man vs The Kingpin (Jun 2, 1993 prototype) | 2 June 1993 21:03:58 | Sega CD | Action | - |
| Ameisenbar (prototype) | | Commodore 64 | Arcade | ✓ |
| America's Army: Rise of a Soldier (Oct 5, 2005 prototype) | 5 October 2005 16:30:19 | Xbox | First Person Shooter | - |
| America's Army: Rise of a Soldier (Sep 9, 2005 prototype) | 9 September 2005 00:46:55 | Xbox | First Person Shooter | - |
| American Dragon: Jake Long - Rise of the Huntsclan (Apr 25, 2006 prototype) | 25 April 2006 | Game Boy Advance | | - |
| American Dragon: Jake Long - Rise of the Huntsclan (Dec 10, 2005 prototype) | 10 December 2005 | Game Boy Advance | | - |
| American Dragon: Jake Long - Rise of the Huntsclan (Dec 27, 2005 prototype) | 28 November 2005 14:27:00 | Game Boy Advance | | - |
| American Dragon: Jake Long - Rise of the Huntsclan (Feb 7, 2006 prototype) | 7 February 2006 15:45:00 | Game Boy Advance | | - |
| American Dragon: Jake Long - Rise of the Huntsclan (May 22, 2006 prototype) | 22 May 2006 15:21:24 | Game Boy Advance | | - |
| American Dragon: Jake Long - Rise of the Huntsclan (Nov 28, 2005 prototype) | 28 November 2005 13:56:00 | Game Boy Advance | | - |
| American Dragon: Jake Long - Rise of the Huntsclan (Nov 3, 2005 prototype) | 3 November 2005 | Game Boy Advance | | - |
| American Dragon: Jake Long - Rise of the Huntsclan (Oct 4, 2005 prototype) | 4 October 2005 21:47:00 | Game Boy Advance | | - |
| American Hero CD (Prototype) | | Atari Jaguar CD | FMV | ✓ |
| American Idol (Mar 10, 2004 prototype) | 10 March 2004 15:38:40 | Xbox | Music, Rhythm | ✓ |
| American McGee's Alice (Nov 27, 2000 prototype) | 27 November 2000 | PC | Puzzle, Platformer, Action-Adventure | - |
| Amparo Museum (Jul 24, 1992 prototype) | 24 July 1992 09:50:43 | Philips CD-i | Reference | - |
| Amped (Oct 17, 2001 prototype) | 17 October 2001 22:53:05 | Xbox | Sports - Snowboarding | - |
| Amped 2 (Oct 2, 2003 prototype) | 2 October 2003 21:55:11 | Xbox | Sports - Snowboarding | - |
| Amped 2 (Sep 12, 2003 prototype) | 12 September 2003 03:06:42 | Xbox | Sports - Snowboarding | - |
| Amped 2 (Sep 22, 2003 prototype) | 22 September 2003 12:37:17 | Xbox | Sports - Snowboarding | - |
| Amped 2 (Sep 30, 2003 prototype) | 30 September 2003 13:29:03 | Xbox | Extreme sports | - |
| Amped 3 (Oct 18, 2005 prototype) | 18 October 2005 23:40:22 | Xbox 360 | Sports - Snowboarding | - |
| Amped: Freestyle Snowboarding (Jan 17, 2002 prototype) | 17 January 2002 | Xbox | Sports, Snowboarding/Skiing | - |
| Amplitude (Feb 7, 2003 prototype) | 7 February 2003 21:12:22 | PlayStation 2 | Rhythm | - |
| Amplitude (May 27, 2003 prototype) | 27 May 2003 11:49:56 | PlayStation 2 | Music | - |
| Anachronox (May 13, 2001 Prototype) | 13 May 2001 | PC | RPG | - |
| Ancient Wars: Sparta (Dec 19, 2006 demo) | | PC | Strategy, Real-Time Strategy | - |
| Ancients of Ooga (April 27, 2010 prototype) | 27 April 2010 | Xbox 360 | Puzzle | - |
| Ancients of Ooga (Dec 9, 2009 prototype) | 9 December 2009 19:56:02 | Xbox 360 | Puzzle, Platformer | - |
| Andre Agassi Tennis (Prototype) | | Game Gear | Sports - Tennis | - |
| Androman on the Moon (prototype) | | Atari 2600 | | ✓ |
| Angels 2: Holy Night (Prototype) | | TurboGrafx-CD | Adventure | ✓ |
| Angry Birds Trilogy (May 19, 2013 prototype) | 19 May 2013 | PlayStation 3 | Compilation, Puzzle | - |
| Angry Birds Trilogy (Patch Data prototype) | | PlayStation 3 | Compilation, Puzzle | - |
| Angry Birds: Star Wars (Sep 13, 2013 prototype) | 13 September 2013 | PlayStation 3 | Puzzle | - |
| Angry Birds: Star Wars (Sep 19, 2013 prototype) | 19 September 2013 | PlayStation 3 | Puzzle | - |
| Angry Birds: Star Wars (Sep 9, 2013 prototype) | 9 September 2013 | PlayStation 3 | Puzzle | - |
| Animal Color Cross (Prototype) | | Nintendo DS | | - |
| Animal Crossing: Wild World (Apr 10, 2006 EU Broadcast Version) | | Nintendo DS | Life simulation | - |
| Animal Crossing: Wild World (Dec 22, 2005 USA Relay Version) | | Nintendo DS | Life simulation | - |
| Animal Crossing: Wild World (Feb 2, 2006 EU Kiosk Demo) | 7 February 2006 10:33:47 | Nintendo DS | Life simulation | - |
| Animal Revolt Battle Simulator (Jul 24, 2020 prototype) | 24 July 2020 | PC | Sandbox Battle Simulator | - |
| Animaniacs (Jun 11, 1994 prototype) | 11 June 1994 | SNES | Platformer | - |
| Animaniacs: Hollywood Hypnotics (Prototype) | | Game Boy Advance | | ✓ |
| Anno 1404 - History Edition (Feb 10, 2009 Patch Data prototype) | 10 February 2009 | PC | Strategy, Simulation | - |
| Anno 1404 - History Edition (Jan 28, 2009 prototype) | 28 January 2009 | PC | Strategy, Simulation | - |
| Anomaly: Warzone Earth (Nov 25, 2011 prototype) | 25 November 2011 | Xbox 360 | Real Time Strategy | - |
| Antz (Prototype) | | Game Boy Color | Action | - |
| Ape Escape 2 (Apr 8, 2003 prototype) | 8 April 2003 21:59:30 | PlayStation 2 | Platformer | - |
| Ape Escape 2 (Oct 28, 2002 prototype) | 28 October 2002 00:53:30 | PlayStation 2 | Action | - |
| Apex (Dec 18, 2002 prototype) | 18 December 2002 | Xbox | Driving/Racing | - |
| Apocalypse (Jul 22, 1998 prototype) | 22 July 1998 13:12:42 | PlayStation | Third-person shooter | - |
| Apocalypse II (Oct 28, 1997 prototype) | 28 October 1997 09:24:52 | SNES | Shooter | ✓ |
| Apocalypse II (Prototype) | | SNES | Shooter | ✓ |
| Apprentice (Commodore 64 prototype) | | Commodore 64 | Platform | ✓ |
| Aqua (Apr 26, 2010 prototype) | 26 April 2010 | Xbox 360 | Action shooter | - |
| Aqua (Jan 11, 2010 prototype) | 11 January 2010 13:43:00 | Xbox 360 | Shoot 'Em Up | - |
| Aqua (Jan 12, 2010 prototype) | 12 January 2010 17:22:03 | Xbox 360 | Shoot 'Em Up | - |
| Aqua (Nov 5, 2009 prototype) | 5 November 2009 16:05:09 | Xbox 360 | Shoot 'Em Up | - |
| Aqua GT (Nov 16, 2000 prototype) | 16 November 2000 14:42:36 | PlayStation | Racing | - |
| Aquaventure (Aug 12, 1983 prototype) | 12 August 1983 | Atari 2600 | | ✓ |
| Ar tonelico II: Melody of Metafalica (Sep 22, 2008 prototype) | 22 September 2008 19:23:10 | PlayStation 2 | Role-playing | - |
| Ar tonelico: Melody of Elemia (Sep 13, 2006 prototype) | 13 September 2006 10:41:58 | PlayStation 2 | Role-playing | - |
| Arabian Knights: Sabaku no Seirei Ou (Prototype) | | SNES | Role Playing | - |
| Arc the Lad Collection: The Making of Arc the Lad (Nov 20, 2001 prototype) | 20 November 2001 | PlayStation | RPG | - |
| Arc the Lad: End of Darkness (Apr 22, 2005 prototype) | 22 April 2005 12:59:04 | PlayStation 2 | Action Role-playing | - |
| Arc the Lad: End of Darkness (Jan 11, 2005 prototype) | 11 January 2005 16:00:02 | PlayStation 2 | Action Role-playing | - |
| Arc the Lad: Twilight of the Spirits (Apr 1, 2003 prototype) | 1 April 2003 21:03:53 | PlayStation 2 | Turn Based Tactics | - |
| Arc the Lad: Twilight of the Spirits (Aug 22, 2002 prototype) | 22 August 2002 07:34:28 | PlayStation 2 | | - |
| Arc the Lad: Twilight of the Spirits (Feb 24, 2003 prototype) | 24 February 2003 | PlayStation 2 | Turn Based Tactics | - |
| Arc the Lad: Twilight of the Spirits (Nov 18, 2003 prototype) | 18 November 2003 05:17:12 | PlayStation 2 | | - |
| Arcade Classics (Sep 4, 1996 prototype) | 4 September 1996 | Philips CD-i | Compilation | - |
| Arcade's Greatest Hits: The Atari Collection 1 (Apr 11, 1997 prototype) | 11 April 1997 | SNES | Arcade | - |
| Arcade's Greatest Hits: The Atari Collection 1 (Feb 10, 1997 prototype) | 10 February 1997 | SNES | Arcade | - |
| Arcade's Greatest Hits: The Atari Collection 1 (Feb 11, 1997 prototype) | 11 February 1997 | SNES | Arcade | - |
| Arcade's Greatest Hits: The Atari Collection 1 (Nov 10, 1996 prototype) | 10 November 1996 00:00:00 | PlayStation | Compilation | - |
| Arcade's Greatest Hits: The Atari Collection 2 (Jan 8, 1998 prototype) | 8 January 1998 21:35:42 | PlayStation | Compilation | - |
| ArcadeSample (Oct 11, 2007 prototype) | 11 October 2007 | Xbox 360 | Sample | - |
| ArcadeSample (Oct 29, 2007 prototype) | 29 October 2007 | Xbox 360 | Arcade | ✓ |
| Arcadia VI (Jun 24, 1991 prototype) | 24 June 1991 | NES | Arcade/Compilation | ✓ |
| Arcana (prototype) | | SNES | Dungeon crawl | - |
| Arcania: Gothic 4 (Mar 30, 2010 prototype) | 30 March 2010 | Xbox 360 | Action role-playing | - |
| Arcanum: Of Steamworks & Magick Obscura (Mar 14, 2001 demo) | 14 March 2001 | PC | | - |
| Arcanum: Of Steamworks & Magick Obscura (Oct 9, 2000 prototype) | 9 October 2000 | PC | RPG | - |
| Arcatera: The Dark Brotherhood (Feb 24, 2000 prototype) | 24 February 2000 | PC | | - |
| Archimedean Dynasty (Oct 11, 1996 prototype) | 11 October 1996 | PC | | - |
| Archimedean Dynasty (Oct 16, 1996 prototype) | 16 October 1996 | PC | | - |
| Archon (Prototype B) | | NES | Strategy | - |
| Archon (Prototype) | | NES | Strategy | - |
| Arctic Thunder (Aug 10, 2001 prototype) | 10 August 2001 08:24:50 | PlayStation 2 | Racing | - |
| Ardy Lightfoot (prototype) | | SNES | Platformer | - |
| Are You Smarter Than A 5th Grader? Make the Grade! (Aug 14, 2008 prototype) | 14 August 2008 | Xbox 360 | Trivia/Board Game | - |
| Area 51 (Aug 4, 2004 prototype) | 4 August 2004 16:20:15 | PlayStation 2 | First Person Shooter (Arcade) | - |
| Area 51 (Feb 25, 2005 prototype) | 25 February 2005 22:42:15 | PlayStation 2 | First Person Shooter (Arcade) | - |
| Area 51 (Jul 11, 1996 prototype) | 11 July 1996 15:02:40 | Sega Saturn | Rail Shooter | - |
| Area 51 (Jul 23, 2004 prototype) | 23 July 2004 20:17:31 | Xbox | First-Person Shooter, Survival Horror | - |
| Area 51 (Jun 19, 1996 prototype) | 19 June 1996 15:39:54 | Sega Saturn | Rail Shooter | - |
| Area 51 (Mar 9, 2005 prototype) | 9 March 2005 14:31:02 | PlayStation 2 | First-person shooter | - |
| Area 51 (Nov 6, 1996 prototype) | 6 November 1996 10:10:04 | Sega Saturn | Rail Shooter | - |
| Arena Football 95 (Prototype) | | Atari Jaguar | Sports | ✓ |
| Aretha (prototype) | April 1993 | SNES | Role Playing | - |
| Aretha II: Ariel no Fushigi na Tabi (Early prototype) | | SNES | Role Playing | - |
| Aretha II: Ariel no Fushigi na Tabi (Prototype) | | SNES | Role Playing | - |
| Ariel the Little Mermaid (Oct 10, 1992 build) | 10 October 1992 10:27:54 | Sega Mega Drive | Adventure | - |
| Arkadian Warriors (Oct 6, 2007 prototype) | 6 October 2007 | Xbox 360 | Action Aventure | - |
| Arkanoid II (Nov 11, 1987 prototype) | 11 November 1987 | MSX2 | Puzzle | - |
| Arkanoid II (prototype B) | | NES | Puzzle | - |
| Arkanoid II (prototype) | | NES | Puzzle | - |
| Arkanoid Live! (Dec 23, 2008 prototype) | 23 December 2008 16:22:20 | Xbox 360 | Puzzle | - |
| Arkanoid Live! (Mar 3, 2009 prototype) | 3 March 2009 | Xbox 360 | Block-Breaking | - |
| Arkyology (prototype) | | Atari 2600 | | ✓ |
| ArmA: Combat Operations (Mar 26, 2007 demo) | 26 March 2007 | PC | Action, Strategy, Simulation, First-Person Shooter, Vehicular Combat | - |
| Armalion (Dec 11, 2001 prototype) | 11 December 2001 | PC | RPG | ✓ |
| Armalion (Sep 20, 2001 prototype) | 20 September 2001 | PC | RPG | ✓ |
| Armed (Jan 22, 1997 prototype) | 22 January 1997 12:40:30 | Sega Saturn | Action | ✓ |
| Armed and Dangerous (Jul 16, 2003 prototype) | 16 July 2003 17:32:21 | Xbox | Action-Adventure | - |
| Armed and Dangerous (Oct 13, 2003 prototype) | 13 October 2003 18:29:03 | Xbox | Shooter | - |
| Armed and Dangerous (Sep 3, 2003 prototype) | 3 September 2003 00:12:24 | Xbox | Action-Adventure | - |
| Armored Core (Jul 3, 1997 prototype) | 3 July 1997 22:40:54 | PlayStation | Vehicular Combat | - |
| Armored Core 2 (Aug 29, 2000 prototype) | 29 August 2000 | PlayStation 2 | Action | - |
| Armored Core 2 (Nov 13, 2000 prototype) | 13 November 2000 18:54:12 | PlayStation 2 | Action | - |
| Armored Core 2: Another Age (Jun 8, 2001 prototype) | 8 June 2001 03:59:28 | PlayStation 2 | Action | - |
| Armorines: Project S.W.A.R.M. (Oct 20, 1999 prototype) | 20 October 1999 | PlayStation | | - |
| Army Men: Green Rogue (Feb 15, 2001 prototype) | 15 February 2001 11:20:16 | PlayStation 2 | Action | - |
| Army Men: Lock 'n' Load (Jan 25, 2001 prototype) | 25 January 2001 22:14:28 | PlayStation | Shoot 'em up | - |
| Army Men: Omega Soldier (Jan 25, 2001 prototype) | 25 January 2001 | PlayStation | Shoot 'em up | - |
| Army Men: RTS (Oct 24, 2001 prototype) | 24 October 2001 00:00:48 | PlayStation 2 | Real-time strategy | - |
| Army Men: Sarge's Heroes 2 (Oct 19, 2000 prototype) | 19 October 2000 15:24:06 | PlayStation | Third Person Shooter | - |
| Army Men: World War (Mar 14, 2000 prototype) | 14 March 2000 14:56:38 | PlayStation | Third Person Shooter | - |
| Army of Two (DLC SSC Challenge Map Pack A prototype) | | Xbox 360 | Action, Shooter | - |
| Army of Two (DLC SSC Challenge Map Pack B prototype) | | Xbox 360 | Action, Shooter | - |
| Army of Two (Oct 7, 2007 prototype) | 7 October 2007 | Xbox 360 | Third-person shooter | - |
| Army of Two (Sep 13, 2007 prototype) | 13 September 2007 | Xbox 360 | Third-person shooter | - |
| Army of Two: The Devil's Cartel (Feb 21, 2013 prototype) | 21 February 2013 01:14:56 | Xbox 360 | Third Person Shooter | - |
| Army of Two: The Devil's Cartel (Jan 25, 2013 Prototype) | 25 January 2013 14:18:44 | Xbox 360 | Third Person Shooter | - |
| Army of Two: The Devil's Cartel (Jan 31, 2013 prototype) | 31 January 2013 | Xbox 360 | Third-person shooter | - |
| Arnold Palmer Tournament Golf (Mar 22, 1990 prototype) | 22 March 1990 10:33:32 | Sega Mega Drive | Sports | - |
| Around Hollywood (Apr 18, 1995 prototype) | 18 April 1995 | Philips CD-i | FMV | ✓ |
| Art Alive (Sep 20, 1991 build) | 20 September 1991 10:19:06 | Sega Mega Drive | Studio | - |
| Art of Fighting (Aug 1, 1994 prototype) | 1 August 1994 13:42:44 | Sega Mega Drive | Fighter (2D) | - |
| Art of Fighting (Jul 11, 1994 prototype) | 12 July 1994 01:13:38 | Sega Mega Drive | Fighter (2D) | - |
| Arthur and the Invisibles (Mar 19, 2007 prototype) | 19 March 2007 15:00:00 | PlayStation Portable | Adventure, Arcade | - |
| Arthur and the Minimoys (Jan 17, 2007 prototype) | 17 January 2007 | PlayStation Portable | | - |
| Arvoch Conflict (Jan 2, 2008 demo) | 2 January 2008 | PC | Action, Simulation, Shooter | - |
| Arx Fatalis (Jul 11, 2003 prototype) | 11 July 2003 | Xbox | Action role-playing game | - |
| Arx Fatalis (Sep 29, 2003 prototype) | 29 September 2003 | Xbox | | - |
| Ascend: Hand of Kul (Oct 02, 2012 prototype) | 2 October 2012 18:25:02 | Xbox 360 | Action, Role-Playing | - |
| Ashen (Mar 12, 2004 prototype) | 12 March 2004 | N-Gage | Action | - |
| Asheron's Call 2: Fallen Kings (Aug 30, 2002 prototype) | 30 August 2002 | PC | Action, Role-Playing, MMORPG | - |
| Asphalt 4: Elite Racing (EU A prototype) | | Nintendo DSi | Driving/Racing | - |
| Asphalt 4: Elite Racing (EU B prototype) | | Nintendo DSi | Driving/Racing | - |
| Asphalt 4: Elite Racing (JP JA prototype) | | Nintendo DSi | Driving/Racing | - |
| Asphalt 4: Elite Racing (JP KOR A prototype) | | Nintendo DSi | Driving/Racing | - |
| Asphalt 4: Elite Racing (JP KOR B prototype) | | Nintendo DSi | Driving/Racing | - |
| Asphalt 4: Elite Racing (JP KOR C prototype) | | Nintendo DSi | Driving/Racing | - |
| Asphalt 4: Elite Racing (USA A prototype) | | Nintendo DSi | Driving/Racing | - |
| Asphalt 4: Elite Racing (USA B prototype) | | Nintendo DSi | Driving/Racing | - |
| Asphalt: Urban GT (Aug 19, 2004 prototype) | 19 August 2004 | N-Gage | Racing | - |
| Assassin's Creed (Feb 15, 2008 prototype) | 15 February 2008 | PC | Action | - |
| Assassin's Creed (Oct 16, 2007 prototype) | 16 October 2007 | Xbox 360 | Action | - |
| Assassin's Creed II (Aug 19, 2009 prototype) | 19 August 2009 | Java ME | Platformer, Action-Adventure | - |
| Assassin's Creed III (Apr 17, 2012 Multiplayer prototype) | 17 April 2012 | Xbox 360 | Action | - |
| Assassin's Creed III (E3 Demo) | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed III (EU Multiplayer Patch Data prototype) | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed III (May 3, 2012 Multiplayer prototype) | 3 May 2012 | Xbox 360 | Action | - |
| Assassin's Creed III (May 4, 2012 Multiplayer prototype) | 4 May 2012 | Xbox 360 | Action | - |
| Assassin's Creed III (Sep 25, 2012 prototype) | 25 September 2012 | Xbox 360 | Action | - |
| Assassin's Creed III (Sep 8, 2012 DLC Benedict Arnold prototype) | 8 September 2012 | Xbox 360 | Action-Adventure | ✓ |
| Assassin's Creed III (Sep 8, 2012 prototype) | 8 September 2012 | Xbox 360 | Action | - |
| Assassin's Creed III (USA Multiplayer Patch Data prototype) | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed III: Liberation (Jun 4, 2018 prototype) | 4 June 2018 | Xbox One | Action-Adventure | - |
| Assassin's Creed III: Liberation (Sep 9, 2012 Prototype) | 9 September 2012 | PlayStation Vita | Action-adventure, stealth | - |
| Assassin's Creed IV: Black Flag (Aug 22, 2013 Multiplayer prototype) | 22 August 2013 01:44:00 | Xbox 360 | Vehicular Combat, Platformer, Action-Adventure | - |
| Assassin's Creed IV: Black Flag (DLC Aveline prototype) | 26 August 2013 | Xbox 360 | Vehicular Combat, Platformer, Action-Adventure | ✓ |
| Assassin's Creed IV: Black Flag (EU Multiplayer Patch Data prototype) | | PlayStation 3 | Action Adventure | - |
| Assassin's Creed IV: Black Flag (Feb 26, 2013 Multiplayer prototype) | 26 February 2013 | Xbox 360 | Vehicular Combat, Platformer, Action-Adventure | - |
| Assassin's Creed IV: Black Flag (Feb 28, 2013 Multiplayer prototype) | 28 February 2013 | Xbox 360 | Vehicular Combat, Platformer, Action-Adventure | - |
| Assassin's Creed IV: Black Flag (Jul 15, 2013 Multiplayer prototype) | 15 July 2013 | Xbox 360 | Vehicular Combat, Platformer, Action-Adventure | - |
| Assassin's Creed IV: Black Flag (Jul 20, 2013 Multiplayer prototype) | 20 July 2013 | Xbox 360 | Vehicular Combat, Platformer, Action-Adventure | - |
| Assassin's Creed IV: Black Flag (Jul 23, 2013 prototype) | 23 July 2013 17:31:28 | Xbox 360 | Action Adventure | - |
| Assassin's Creed IV: Black Flag (Jun 28, 2013 Multiplayer prototype) | 28 June 2013 | Xbox 360 | Vehicular Combat, Platformer, Action-Adventure | - |
| Assassin's Creed IV: Black Flag (May 14, 2013 Multiplayer prototype) | 14 May 2013 | Xbox 360 | Vehicular Combat, Platformer, Action-Adventure | - |
| Assassin's Creed IV: Black Flag (May 16, 2013 prototype) | 16 May 2013 11:41:03 | Xbox 360 | Action Adventure | - |
| Assassin's Creed IV: Black Flag (May 17, 2013 prototype) | 17 May 2013 09:31:02 | Xbox 360 | Action Adventure | - |
| Assassin's Creed IV: Black Flag (May 7, 2013 prototype) | 7 May 2013 04:26:39 | Xbox 360 | Action Adventure | - |
| Assassin's Creed IV: Black Flag (Oct 3, 2013 prototype) | 3 October 2013 00:00:00 | Xbox 360 | Action Adventure | - |
| Assassin's Creed IV: Black Flag (Sep 13, 2013 Multiplayer prototype) | 13 September 2013 | Xbox 360 | Vehicular Combat, Platformer, Action-Adventure | - |
| Assassin's Creed IV: Black Flag (Sep 13, 2013 Prototype) | 13 September 2013 | PlayStation 3 | Action Adventure | - |
| Assassin's Creed IV: Black Flag (USA Multiplayer Patch Data prototype) | | PlayStation 3 | Action Adventure | - |
| Assassin's Creed: Brotherhood (Apr 15, 2011 multiplayer prototype) | 15 April 2011 | Xbox 360 | Action Adventure, Stealth | - |
| Assassin's Creed: Brotherhood (Apr 16, 2011 multiplayer prototype) | 16 April 2011 | Xbox 360 | Action Adventure, Stealth | - |
| Assassin's Creed: Brotherhood (Apr 18, 2011 10 Multiplayer prototype) | 18 April 2011 | Xbox 360 | Action Adventure, Stealth | - |
| Assassin's Creed: Brotherhood (Apr 18, 2011 17 Multiplayer prototype) | 18 April 2011 | Xbox 360 | Action Adventure, Stealth | - |
| Assassin's Creed: Brotherhood (Aug 16, 2010 Multiplayer prototype) | 16 August 2010 05:26:32 | Xbox 360 | Action Adventure, Stealth | - |
| Assassin's Creed: Brotherhood (EU Multiplayer prototype) | | PlayStation 3 | Action Adventure, Stealth | - |
| Assassin's Creed: Brotherhood (EU Patch Data 01.02 prototype) | | PlayStation 3 | Action Adventure, Stealth | - |
| Assassin's Creed: Brotherhood (EU Patch Data 02.01 A prototype) | | PlayStation 3 | Action Adventure, Stealth | - |
| Assassin's Creed: Brotherhood (EU Patch Data 02.01 B prototype) | | PlayStation 3 | Action Adventure, Stealth | - |
| Assassin's Creed: Brotherhood (Oct 11, 2010 prototype) | 11 October 2010 00:00:00 | Xbox 360 | Action Adventure | - |
| Assassin's Creed: Brotherhood (Oct 9, 2010 prototype) | 9 October 2010 | Xbox 360 | Action Adventure | - |
| Assassin's Creed: Brotherhood (PAL Patch Data 02.01 prototype) | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Brotherhood (PAL QA Patch Data 1.01 prototype) | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Brotherhood (USA Multiplayer prototype) | | PlayStation 3 | Action Adventure, Stealth | - |
| Assassin's Creed: Brotherhood (USA Patch Data 01.02 prototype) | | PlayStation 3 | Action Adventure, Stealth | - |
| Assassin's Creed: Revelations (Europe Multiplayer prototype) | | PlayStation 3 | Action Adventure | - |
| Assassin's Creed: Revelations (Jun 20, 2011 Multiplayer prototype) | 20 June 2011 | Xbox 360 | Action Adventure | - |
| Assassin's Creed: Revelations (Mar 29, 2011 Multiplayer prototype) | 29 March 2011 | Xbox 360 | Action Adventure | - |
| Assassin's Creed: Revelations (Oct 5, 2011 prototype) | 5 October 2011 22:41:15 | Xbox 360 | Action Adventure | - |
| Assassin's Creed: Revelations (USA Multiplayer prototype) | | PlayStation 3 | Action Adventure | - |
| Assassin's Creed: Rogue (A prototype) | | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Apr 1, 2014 prototype) | 1 April 2014 | Xbox 360 | Action Adventure | - |
| Assassin's Creed: Rogue (Apr 11, 2014 prototype) | 11 April 2014 | Xbox 360 | Action Adventure | - |
| Assassin's Creed: Rogue (Apr 26, 2014 prototype) | 26 April 2014 | Xbox 360 | Action Adventure | - |
| Assassin's Creed: Rogue (Apr 5, 2014 prototype) | 5 April 2014 | Xbox 360 | Action Adventure | - |
| Assassin's Creed: Rogue (Aug 22, 2014 prototype) | 22 August 2014 | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Aug 25, 2014 prototype) | 25 August 2014 | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Aug 26, 2014 prototype) | 26 August 2014 | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Jul 11, 2014 prototype) | 10 July 2014 | Xbox 360 | Action-Adventure | - |
| Assassin's Creed: Rogue (Jul 18, 2014 prototype) | 18 July 2014 | Xbox 360 | Action-Adventure | - |
| Assassin's Creed: Rogue (Jul 19, 2014 prototype) | 19 July 2014 | Xbox 360 | Action-Adventure | - |
| Assassin's Creed: Rogue (Jul 22, 2014 prototype) | 22 July 2014 | Xbox 360 | Action-Adventure | - |
| Assassin's Creed: Rogue (Jul 31, 2014 prototype) | 31 July 2014 | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Jul 9, 2014 prototype) | 9 July 2014 | Xbox 360 | Action-Adventure | - |
| Assassin's Creed: Rogue (May 10, 2014 prototype) | 10 May 2014 | Xbox 360 | Action Adventure | - |
| Assassin's Creed: Rogue (May 19, 2014 prototype) | 19 May 2014 14:41:19 | Xbox 360 | Action Adventure | - |
| Assassin's Creed: Rogue (May 2, 2014 prototype) | 2 May 2014 | Xbox 360 | Action Adventure | - |
| Assassin's Creed: Rogue (Oct 14, 2014 DLC Activities Pack prototype) | 14 October 2014 | Xbox 360 | Action-Adventure | - |
| Assassin's Creed: Rogue (Oct 14, 2014 DLC Collectibles Pack prototype) | 14 October 2014 | Xbox 360 | Action-Adventure | - |
| Assassin's Creed: Rogue (Oct 14, 2014 DLC Resource Pack prototype) | 14 October 2014 | Xbox 360 | Action-Adventure | - |
| Assassin's Creed: Rogue (Oct 14, 2014 DLC Technology Pack prototype) | 14 October 2014 | Xbox 360 | Action-Adventure | - |
| Assassin's Creed: Rogue (Oct 14, 2014 DLC The Templar Legacy Pack prototype) | 14 October 2014 | Xbox 360 | Action-Adventure | - |
| Assassin's Creed: Rogue (Oct 6, 2014 prototype) | 6 October 2014 | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Sep 21, 2014 prototype) | 21 September 2014 | Xbox 360 | Action-Adventure | - |
| Assassin's Creed: Rogue (Sep 22, 2014 prototype) | 22 September 2014 | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Sep 23, 2014 13.28 prototype) | 23 September 2014 13:28:49 | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Sep 23, 2014 prototype) | 23 September 2014 | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Sep 24, 2014 09.28 prototype) | 24 September 2014 09:28:49 | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Sep 24, 2014 prototype) | 24 September 2014 | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Sep 3, 2014 A prototype) | 3 September 2014 | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Sep 3, 2014 B prototype) | 3 September 2014 | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Sep 4, 2014 prototype) | 4 September 2014 | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Sep 8, 2014 A prototype) | 8 September 2014 | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Sep 8, 2014 B prototype) | 8 September 2014 | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Sep 9, 2014 A prototype) | 9 September 2014 | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue (Sep 9, 2014 B prototype) | 9 September 2014 | PlayStation 3 | Action-Adventure | - |
| Assassin's Creed: Rogue Assets of Incomplete Builds | | PlayStation 3 | Action-Adventure | - |
| Assault Heroes (DLC TEST PACK 2 prototype) | | Xbox 360 | Shoot Em Up | ✓ |
| Assault Heroes (Mar 30, 2007 prototype) | 30 March 2007 | Xbox 360 | Shoot Em Up | - |
| Assault Heroes 2 (Mar 4, 2008 prototype) | 4 March 2008 | Xbox 360 | Shoot Em Up | - |
| Assault Rigs (Jan 8, 1996 prototype) | 8 January 1996 14:57:58 | PlayStation | Vehicular Combat | - |
| Assault Rigs (Oct 10, 1995 prototype) | 10 October 1995 15:37:54 | PlayStation | Vehicular Combat | - |
| Assault: Retribution (Sep 3, 1998 prototype) | 3 September 1998 17:15:48 | PlayStation | Action | - |
| Packaging Sources | | PlayStation 2 | Racing | - |
| Jun 22, 2000 Asset Disc | | Dreamcast | | - |
| Alone In The Dark Making Of | | Other | Action Adventure | - |
| Press Kit | | PlayStation 2 | Music | - |
| Agetec PS2 Graphic Assets | | PlayStation 2 | | - |
| Fan Site Kit | | Other | Action, Shooter, First-Person Shooter, Vehicular Combat | - |
| Battlefield 2142 Misc Assets | | PC | Action, Shooter, First-Person Shooter, Vehicular Combat | - |
| BioShock 3D Assets | | Brew | | - |
| Fan Site Kit | | PC | Strategy, Simulation | - |
| Bully EPK | | PlayStation 2 | Action-Adventure | - |
| Art Info | | PlayStation 2 | | - |
| Call of Duty 2 Dev Maps | | Xbox 360 | Action | - |
| Call of Duty Review Kit | | N-Gage | FPS | - |
| Call Of Duty Black Ops Press Disc | | Other | FPS | - |
| Capcom E3 2003 Press Disk | | Other | | - |
| Close Combat: First to Fight New Gameplay Clips & Screenshots | | Other | FPS | - |
| Fan Site Kit | | Other | Real-Time Strategy | - |
| Assets Disc | | PlayStation 2 | | - |
| Press CD | | PlayStation | | - |
| Hi-res Disc August 99 | | PlayStation | | - |
| Hi-res Disc July 99 | | PlayStation | | - |
| Press Disc July 99 | | PlayStation | | - |
| Press Disc November 99 | | PlayStation | | - |
| Asset Disc | | PlayStation 2 | | - |
| DMA Design Miscellaneous Press Material | | Other | | - |
| Daxter Press Disc | | PlayStation Portable | Action | - |
| Dementium II Design Documents | | Nintendo DS | Survival horror, FPS | - |
| Deus Ex: Human Revolution Misc Assets | | PlayStation 3 | Action role-playing | - |
| DiRT 3 Misc Assets | | PlayStation 3 | Racing | - |
| DiRT Showdown + Inversion - Press Assets | | Other | | - |
| DiRT Showdown Misc Assets | | PlayStation 3 | Racing | - |
| Diablo III Beta Press Kit | | PC | Role-Playing, Action-Adventure | - |
| Diablo III Blizzcon 2010 Press Kit | | PC | Role-Playing, Action-Adventure | - |
| Diablo III Blizzcon 2011 Press Kit | | PC | Role-Playing, Action-Adventure | - |
| Diablo III E3 2013 Press Kit | | Other | Role-Playing, Action-Adventure | - |
| Diablo III Gamescom 2010 Press Kit | | PC | Role-Playing, Action-Adventure | - |
| Diablo III Launch Press Kit | | PC | Role-Playing, Action-Adventure | - |
| Diablo III PAX East 2013 Press Kit | | PlayStation 3 | Role-Playing, Action-Adventure | - |
| Dino 2 Playstation Source Code | | PlayStation | | ✓ |
| Makai Senki Disgaea Digital Genga-shuu | | PlayStation 2 | Tactical role-playing game, Entertainment, Speculative fiction, Fantasy, Societal | - |
| Electronic Press Kit | | PlayStation 2 | | - |
| Character Renders | | Other | | - |
| Message Files | | SNES | RPG | - |
| Midway E3 2005 Disc | | PlayStation 2 | | - |
| Fable II Press Kit | | Xbox 360 | Adventure | - |
| Fallout 3 Australia Press Event Assets | | Other | Role-Playing, First-Person Shooter | - |
| Famitsu July Special Edition - E3 Special News! 2004 | | | | - |
| Assets of Incomplete Builds | | Other | First-Person Shooter | - |
| Frogger 2 Dev Archives | | PC | Action | - |
| GRID 2 Misc Assets | | PlayStation 3 | Driving/Racing | - |
| GameNation E3 2002 Media Kit | | Other | | - |
| NintendoGamecubePreview | | Nintendo GameCube | | ✓ |
| Gangs of London Press Disc | | PlayStation Portable | Action | - |
| Gears of War Microsoft's Internal Archive Leak | | Other | Third-person shooter | - |
| Grand Theft Auto: San Andreas EPK | | Other | Action | - |
| Grand Theft Auto: Vice City EPK | | Other | Driving/Racing, Shooter, Action-Adventure | - |
| Half-Life 2 E3 2003 Footage CD | | PC | Shooter | - |
| Haven: Call of the King Press Disk | | Other | | - |
| Heavy Rain Asset Disc | | PlayStation 3 | Interactive drama, action-adventure | - |
| Hexplore 1997 ECTS Preview Assets Disk | | PC | Role-playing video game, action, adventure, puzzle | - |
| Invizimals: The Lost Kingdom Unplayable Builds | | PlayStation 3 | Action-Adventure | - |
| Manual Sources | | PC | | - |
| Jimmy Neutron vs. Jimmy Negatron GBA Assets | | Game Boy Advance | Action | - |
| Jimmy Neutron vs. Jimmy Negatron GBA Source Code | | Game Boy Advance | Action | - |
| PC Design Document | | PC | Action | - |
| Juiced Demo Press Kit | | Other | Racing | - |
| Juiced SHOW OFF MOVIES July 2004 Press Kit | | Other | Racing | - |
| Juiced Shystie Internal Press Kit | | Other | Racing | - |
| Juiced VARIOUS ARTWORKS 1st July 2004 Press Kit | | Other | Racing | - |
| Killzone 2 Press Kit | | PlayStation 3 | First-person shooter | - |
| Killzone: Liberation Press Disk | | PlayStation Portable | FPS | - |
| Konami Artwork - Various Titles | | PlayStation | | - |
| Konami E3 2003 Electronic Press Kit | | Other | | - |
| Konami E3 2004 Press Asset Disc | | Other | | - |
| Konami Tokyo Game Show 2004 Asset Disc | | Other | | - |
| LEGO Batman 3: Beyond Gotham Press Kit | | Other | Platformer, Action-Adventure | - |
| Print Preview Assets | | Xbox 360 | | - |
| Eidos Assets | | PlayStation 2 | Action Adventure | - |
| Left 4 Dead Assets for Media | | Other | Action, First-Person Shooter | - |
| Lego Racers: The Video Game FMV Assets | | Other | | ✓ |
| Lego Racers: The Video Game Pitch Documents | | Nintendo DS | | ✓ |
| LittleBigPlanet 2 Misc Assets | | PlayStation 3 | Puzzle-platformer | - |
| LittleBigPlanet Media Assets | | PlayStation 3 | | - |
| LittleBigPlanet Assets of Incomplete Builds | | PlayStation 3 | Platform | - |
| Lollipop Chainsaw Press Disk | | Other | Action | - |
| Press Kit | | PlayStation 2 | | - |
| Electronic Press Kit | | PlayStation 2 | | - |
| Mario Kart: Double Dash!! Press Kit (French) | | Nintendo GameCube | | - |
| x devmode.ras | | Other | Shooter, Action-Adventure | - |
| Midnight Club 3: DUB Edition New Official Trailer and Screenshots | | Other | Driving/Racing | - |
| Midnight Club 3: DUB Edition Official Trailer and Screenshots | | Other | Driving/Racing | - |
| Midnight Club 3: DUB Edition Screenshots from the Website | | Other | Driving/Racing | - |
| ModNation Racers Misc Assets | | PlayStation 3 | Driving/Racing, Vehicular Combat | - |
| Artwork Disc | | Nintendo 64 | | - |
| Mountain Bike Adrenaline Press Kit | | Other | Sports | - |
| Press Kit | | PlayStation | Sports - Basketball | - |
| NINTENDO ツブヨリディスク GAME RUSH! 2002 Autumn → Winter DVD | | | | - |
| Need for Speed: Most Wanted 2012 Misc Assets | | PlayStation 3 | Racing | - |
| Asset CD | | PlayStation 2 | | - |
| Nintendo DREAM - Wii E3 2006 Report | | | | - |
| PlayStation E3 2000 Press Disc 1 | | PlayStation | | - |
| Power Source (ECTS 98 Press CD 1) | | PlayStation | | - |
| Power Source (ECTS 98 Press CD 2) | | PlayStation | | - |
| Pre E3 Kit 2005 | | Other | | - |
| Primal Press Disc | | PlayStation 2 | Action-adventure | - |
| Primal Video Demo Disc | | PlayStation 2 | Action-adventure | - |
| Pro Evolution Soccer 2011 Misc Assets | | PlayStation 3 | Sports, Soccer | - |
| Quake II 3.21. Source Code | | Other | FPS | - |
| R.B.I. Baseball '94 Sega Mega Drive Source Code | | Sega Mega Drive | Sports, Baseball | - |
| RTX Red Rock Art Asset June 2003 | | PlayStation 2 | Action Adventure | - |
| Rage The Making Of (French) | | Other | First-person shooter, vehicular combat | - |
| Launch Press Kit | | PlayStation 2 | | - |
| Summer 99 Digital Press Kit | | PlayStation | | - |
| Rayman 3 Art Disc | | Other | Platform | - |
| May 2001 Press Kit | | Game Boy Advance | | - |
| Rayman Legends Unplayable Builds | | Other | Platform | - |
| Red Dead Revolver Capcom Press Kit | | Other | Action-adventure | - |
| Press CD | | PlayStation | | - |
| Press Kit | | | | - |
| SCEE E3 May 2001 Press Information | | Other | | - |
| SOCOM 4: U.S. Navy SEALs Cache Files | | PlayStation 3 | Action, Shooter | - |
| Saints Row Assets Disk | | Other | Action Adventure | - |
| San Diego Third Party Product Review April 2002 | | | | - |
| Sega Rally Revo Assets of Incomplete Builds | | PlayStation 3 | Driving/Racing | - |
| Manual Sources | | PC | FPS | - |
| Press Kit | | | | - |
| Press Kit | | PlayStation 2 | | - |
| Spartacus Legends Unplayable Builds | | Xbox 360 | Fighting | - |
| Spore Fansite Kit | | Other | Strategy, Adventure, Simulation | - |
| PAL Press CD | | PlayStation | | - |
| StarCraft II: Wings of Liberty Launch Press Kit | | PC | Real-time strategy | - |
| Level Pack | | Game Boy Color | | ✓ |
| Take-Two Interactive: 2001 EPK: Electronic Press Kit | | Other | | - |
| Tales from the Borderlands Old Assets | | Other | Adventure | - |
| Dave Pinkney Backup 1 | | Other | Platformer | - |
| Dave Pinkney Backup 2 | | Other | Platformer | - |
| Milestone 10 Assets | | Other | Platformer | - |
| Milestone 14 Assets | | Other | Platformer | - |
| Milestone 15 Assets | | Other | Platformer | - |
| Tekken: Dark Resurrection Press Disk | | PlayStation Portable | Fighting | - |
| The Fight: Lights Out Assets | | PlayStation 3 | Fighting | - |
| Press Disk | | PlayStation 2 | Action-Adventure | - |
| The House of the Dead: Overkill Announcement Asset Disk | | Nintendo Wii | Shooter | - |
| The Last of Us Misc Assets | | PlayStation 3 | Action-adventure | - |
| Game Boy and NES source code | | NES | Platformer | - |
| Fan Site Kit | | PC | Strategy, Real-Time Strategy | - |
| PR Asset Discs | | PlayStation 2 | | - |
| Press Assets 2003 | | PlayStation 2 | | - |
| The Sims 2 Exclusive Woolworths Preview Disc | | Other | Simulator | - |
| The Sims 2 Press Kit | | PC | Simulator | - |
| July 2006 Design Document | | Nintendo Wii | Action | - |
| GBA Source Code | | Game Boy Advance | Racing | ✓ |
| Trials Fusion Assets of Incomplete Builds | | PlayStation 4 | Driving/Racing, Platformer | - |
| Art Disc | | PlayStation | | - |
| UFO: Aftershock Fansite Kit | | PC | Strategy, Role-Playing | - |
| Uncharted 2: Among Thieves Media Disk | | PlayStation 3 | Action-adventure, third-person shooter | - |
| Uncharted: Drake’s Fortune Press Disk | | PlayStation 3 | Shooter | - |
| Universal Interactive Studios Confidential Asset Disc | | PlayStation 2 | | - |
| Unreal II: eXpanded MultiPlayer Source Code | | Other | Action | - |
| Press Disc | | Other | | - |
| August 2000 Press Kit | | PlayStation | Rhythm | - |
| Disc CD | | PlayStation 2 | Fighting | - |
| Asset CD | | Xbox | | - |
| Xbox 360 + Games for Windows - Press Kit - Games Convention 2007 | | Other | | - |
| Zenith Design & Report Documents (1995-1996) | | PC | Action, Strategy | ✓ |
| Asterix & Obelix XXL (Feb 25, 2004 prototype) | 25 February 2004 | Nintendo GameCube | Action | - |
| Asterix & Obelix XXL (Prototype A) | | Game Boy Advance | Action | - |
| Asterix & Obelix XXL (Prototype B) | | Game Boy Advance | Action | - |
| Asterix (Aug 1, 1983 prototype) | | Atari 2600 | | - |
| Asterix (Feb 16, 1994 prototype) | 16 February 1994 11:05:14 | Game Gear | Action Platformer | - |
| Asterix (Feb 22, 1994 prototype) | 22 February 1994 09:14:06 | Game Gear | Action Platformer | - |
| Asterix (Jan 25, 1994 prototype) | 25 January 1994 16:53:24 | Game Gear | Action Platformer | - |
| Asterix (Jul 27, 1983 prototype) | | Atari 2600 | | - |
| Asterix (Localization prototype) | | Game Boy | Platformer | - |
| Asterix (Mar 11, 1993 prototype) | 11 March 1993 | SNES | Action | - |
| Asterix (Mar 15, 1994 prototype) | 15 March 1994 11:54:48 | Game Gear | Action Platformer | - |
| Asterix (Mar 16, 1994 prototype) | 16 March 1994 16:58:18 | Game Gear | Action Platformer | - |
| Asterix (Mar 3, 1994 prototype) | 3 March 1994 10:02:44 | Game Gear | Action Platformer | - |
| Asterix (Prototype A) | | Game Boy | Action | - |
| Asterix (Prototype B) | | Game Boy | Action | - |
| Asteroids & Deluxe (Oct 3, 2007 prototype) | 3 October 2007 13:42:37 | Xbox 360 | Shoot em Up | - |
| Asteroids (Atari 5200 prototype) | | Atari 5200 | Shoot 'em up | ✓ |
| Asteroids (Atari 7800 prototype) | | Atari 7800 | Shoot 'em up | - |
| Asteroids (Aug 12, 1982 prototype) | 12 August 1982 | Atari 5200 | Shoot 'em up | ✓ |
| Asteroids (Game Boy Prototype) | | Game Boy | Arcade | - |
| Asteroids 2000 (Jul 20, 1994 prototype) | 20 July 1994 | Atari Jaguar | Shooter | ✓ |
| Astro Boy: The Video Game (Jul 27, 2009 prototype) | 27 July 2009 | Nintendo Wii | Action | - |
| Astro Chase (Oct 25, 1983 prototype) | | Atari 2600 | | ✓ |
| Astro Warrior & Pit Pot (Prototype) | | Sega Master System | Sports | - |
| AstroPop (Feb 22, 2006 prototype) | 22 February 2006 | Xbox 360 | Puzzle | - |
| Astrocade (Aug 1, 1994 prototype) | 1 August 1994 | Sega Saturn | Puzzle | ✓ |
| Astropop (Unknown prototype) | | Xbox 360 | Puzzle | - |
| Astérix & Obélix XXL 2: Mission: Las Vegum (Feb 25, 2005 prototype) | 25 February 2005 02:53:23 | PlayStation 2 | Action | - |
| Asura's Wrath (Dec 2, 2011 prototype) | 2 December 2011 06:31:57 | PlayStation 3 | Action | - |
| AtSimple DS Series Vol. 1: The Misshitsu kara no Dasshutsu (prototype) | | Nintendo DSi | Trivia/Board Game | - |
| Atari Classics Evolved (Oct 1, 2007 prototype) | 1 October 2007 | PlayStation Portable | Compilation | - |
| Atari Classics Evolved (Oct 31, 2007 prototype) | 31 October 2007 10:47:12 | PlayStation Portable | Compilation | - |
| Atari Karts (Prototype) | | Atari Jaguar | Racing | - |
| Atari Masterpieces Volume 1 (Aug 3, 2005 prototype) | 3 August 2005 18:50:11 | N-Gage | Compilation | - |
| Atelier Iris 2: The Azoth of Destiny (Feb 7, 2006 prototype) | 7 February 2006 14:44:55 | PlayStation 2 | Role-playing | - |
| Atelier Iris 2: The Azoth of Destiny (Mar 6, 2006 prototype) | 6 March 2006 18:15:35 | PlayStation 2 | Role-playing | - |
| Atelier Iris: Eternal Mana (Apr 8, 2005 prototype) | 8 April 2005 23:15:11 | PlayStation 2 | Role-playing | - |
| Atelier Iris: Eternal Mana (May 12, 2005 prototype) | 12 May 2005 | PlayStation 2 | RPG | - |
| Athens 2004 (Apr 14, 2004 prototype) | 14 April 2004 21:28:49 | PlayStation 2 | Sports - Athletics | - |
| Athletic Piggy Party (Apr 21, 2008 prototype) | 21 April 2008 09:07:52 | Nintendo Wii | Party | - |
| Athletic Piggy Party (Apr 23, 2008 prototype) | 23 April 2008 12:48:18 | Nintendo Wii | Party | - |
| Athletic Piggy Party (Apr 24, 2008 16.44 prototype) | 24 April 2008 16:44:20 | Nintendo Wii | Party | - |
| Athletic Piggy Party (Apr 24, 2008 prototype) | 24 April 2008 16:17:13 | Nintendo Wii | Party | - |
| Athletic Piggy Party (Apr 25, 2008 prototype) | 25 April 2008 16:11:33 | Nintendo Wii | Party | - |
| Athletic Piggy Party (May 8, 2008 16.57 prototype) | 8 May 2008 16:57:00 | Nintendo Wii | Party | - |
| Athletic Piggy Party (May 8, 2008 prototype) | 8 May 2008 | Nintendo Wii | Party | - |
| Atlantis no Nazo (Prototype) | | NES | Action | - |
| Atlantis: The Last Resort (Sep 18, 1996) | 18 September 1996 | Philips CD-i | FMV | ✓ |
| Atmosfear (Jul 12, 1994 prototype) | 12 July 1994 | SNES | Action | ✓ |
| Atom Smasher (prototype) | | Atari 2600 | | ✓ |
| Atomic Betty (Prototype) | | Game Boy Advance | Action | - |
| Austin Powers: Why Make Millions... (Sep 2, 2000 prototype) | 2 September 2000 | Game Boy Color | Compilation | ✓ |
| Austin Powers: Yeah, Baby, Yeah! (Sep 11, 2000 prototype) | 11 September 2000 | Game Boy Color | Compilation | ✓ |
| Australian Rugby League (Prototype) | | Sega Mega Drive | Sports - Rugby | - |
| Auto Destruct (Oct 15, 1997 prototype) | 15 October 1997 14:16:42 | PlayStation | Vehicular Combat | - |
| Auto Modellista (Dec 10, 2002 prototype) | 10 December 2002 01:08:08 | PlayStation 2 | Racing | - |
| Auto Modellista (Jan 27, 2003 prototype) | 27 January 2003 05:26:54 | PlayStation 2 | Racing | - |
| Avatar Superstars Poker (Jul 31, 2010 prototype) | 31 July 2010 | Xbox 360 | Poker | ✓ |
| Avatar: The Last Airbender (Jul 10, 2007 prototype) | 10 July 2007 | Nintendo DS | Action | ✓ |
| Avatar: The Last Airbender - The Burning Earth (Jul 20, 2007 prototype) | 20 July 2007 | Xbox 360 | Action-adventure | - |
| Awesome Possum Kicks Dr. Machino's Butt! (CENSOR Prototype A) | | Sega Mega Drive | Action | - |
| Awesome Possum Kicks Dr. Machino's Butt! (CENSOR Prototype B) | | Sega Mega Drive | Action | - |
| Awesome Possum Kicks Dr. Machino's Butt! (Jul 12, 1993 prototype) | 12 July 1993 | Sega Mega Drive | Platform | - |
| Awesomenauts (Nov 9, 2011 prototype) | 9 November 2011 | Xbox 360 | Real Time Strategy | - |
| Ax Battler: A Legend of Golden Axe (Oct 8, 1991 prototype) | 8 October 1991 | Game Gear | Role Playing | - |
| Axel & Pixel (Oct 3, 2009 prototype) | 3 October 2009 | Xbox 360 | Adventure | - |
| Ayrton Senna's Super Monaco GP II (Prototype) | | Game Gear | Racing | - |
| Azure Dreams (Apr 23, 1998 prototype) | 23 April 1998 00:00:00 | PlayStation | Role Playing | - |
| Azure Dreams (Jan 13, 1998 prototype) | 13 January 1998 17:21:30 | PlayStation | Role Playing | - |
| B Team - Episode 1: Dust & Steel (Jun 2, 2011 prototype) | 2 June 2011 | Nintendo DSi | Shooter | - |
| B Team - Episode 2: Ice & Venom (May 5, 2011 prototype) | 5 May 2011 | Nintendo DSi | Action | - |
| B-17: Fortress in the Sky (Prototype) | | Nintendo DS | Air combat | - |
| B-Boy (May 29, 2006 prototype) | 29 May 2006 | PlayStation 2 | Music | - |
| B.C. Kid 2 (Game Boy prototype) | | Game Boy | Platformer | - |
| B.O.B. (Prototype) | | Sega Mega Drive | Action | - |
| BCG XBLA Test (Jul 7, 2010 utility) | | Xbox 360 | | ✓ |
| BIONICLE: The Legend of Mata Nui (Jul 24, 2001 prototype) | 24 July 2001 08:22:00 | PC | Action | ✓ |
| BIONICLE: The Legend of Mata Nui (Oct 23, 2001 prototype) | 23 October 2001 22:46:05 | PC | Action | ✓ |
| BMX 4 (Nov 8, 2002 prototype) | 8 November 2002 17:02:26 | Xbox | | - |
| BMX XXX (Oct 29, 2002 prototype) | 29 October 2002 16:59:04 | PlayStation 2 | Sports - Biking | - |
| BMX XXX (Oct 9, 2002 prototype) | 9 October 2002 04:58:14 | PlayStation 2 | Sports - Biking | - |
| BP Point Packs (prototype) | | Xbox 360 | | ✓ |
| Baby Boom (Aug 11, 1994 prototype) | 11 August 1994 21:54:54 | Sega Mega Drive | Misc | ✓ |
| Baby Boom (Jun 3, 1994 prototype) | 3 June 1994 19:14:18 | Sega Mega Drive | Misc | ✓ |
| Baby Boom (Jun 6, 1994 prototype) | 6 June 1994 18:02:48 | Sega Mega Drive | Misc | ✓ |
| Baby's Day Out (Game Boy Prototype) | | Game Boy | | ✓ |
| Baby's Day Out (Game Boy prototype) | | Game Boy | Puzzle | ✓ |
| Baby's Day Out (NAPALM prototype) | | Sega Mega Drive | Action | ✓ |
| Baby's Day Out (SNEAKERS prototype) | | Sega Mega Drive | Action | ✓ |
| Back To Bed (July 20, 2015 Prototype) | 20 July 2015 | PlayStation Vita | Puzzle Video Game, Indie game, Action game, Casual game | - |
| Back at the Barnyard: Slop Bucket Games (Jun 2, 2008 prototype) | 2 June 2008 18:55:13 | Nintendo DS | Action | - |
| Back at the Barnyard: Slop Bucket Games (Jun 20, 2008 prototype) | 20 June 2008 18:51:12 | Nintendo DS | Action | - |
| Back at the Barnyard: Slop Bucket Games (Jun 30, 2008 prototype) | 30 June 2008 17:16:51 | Nintendo DS | Action | - |
| Back at the Barnyard: Slop Bucket Games (Mar 20, 2008 prototype) | 20 March 2008 19:00:00 | Nintendo DS | Action | - |
| Back at the Barnyard: Slop Bucket Games (May 5, 2008 prototype) | 5 May 2008 19:30:00 | Nintendo DS | Action | - |
| Back to Stone (Prototype) | | Game Boy Advance | Action | - |
| Backbreaker (Nov 11, 2009 prototype) | 11 November 2009 | Xbox 360 | Sports | - |
| Backbreaker (Nov 27, 2009 prototype) | 27 November 2009 | Xbox 360 | Sports | - |
| Backstreet Billiards (Sep 7, 1998 prototype) | 7 September 1998 17:16:54 | PlayStation | Billiards | - |
| Backup LIB sample (1.04) | | Game Boy Advance | | - |
| Backyard Heroes (Dec 18, 2013 prototype) | 18 December 2013 19:04:40 | Xbox 360 | Action | ✓ |
| Backyard Heroes (Dec 2, 2013 prototype) | 2 December 2013 20:59:49 | Xbox 360 | Action | ✓ |
| Backyard Heroes (Oct 21, 2013 prototype) | 21 October 2013 15:45:40 | Xbox 360 | Action | ✓ |
| Backyard Heroes (Sep 30, 2013 prototype) | 30 September 2013 | Xbox 360 | Action | ✓ |
| Backyard Wrestling 2: There Goes the Neighborhood (Jul 27, 2004 prototype) | 27 July 2004 04:17:05 | PlayStation 2 | Wrestling | - |
| Backyard Wrestling: Don't Try This at Home (Jul 13, 2003 prototype) | 13 July 2003 20:47:10 | PlayStation 2 | Wrestling | - |
| Backyard Wrestling: Don't Try This at Home (Jul 14, 2003 prototype) | 14 July 2003 00:15:06 | Xbox | Wrestling | - |
| Bad News Baseball (Prototype) | | NES | Sports - Baseball | - |
| Baja Mania (Dec 14, 2006 prototype) | 14 December 2006 15:03:35 | PlayStation 2 | Racing | ✓ |
| Baja Mania (Sep 25, 2006 prototype) | 25 September 2006 08:28:30 | PC | Racing | ✓ |
| Baja: Edge of Control (Aug 3, 2008 prototype) | 3 August 2008 | Xbox 360 | Racing | - |
| Baja: Edge of Control (May 27, 2008 prototype) | 27 May 2008 | Xbox 360 | Racing | - |
| Baku Baku Animal: World Zookeeper Contest (Apr 26, 1996 prototype) | 26 April 1996 10:44:08 | Sega Saturn | Puzzle | - |
| Bakuryu (Nov 27, 1999 prototype) | 27 November 1999 15:23:58 | PlayStation | Sports - Kayaking | - |
| Bakushou!! Jinsei Gekijou (Early prototype) | | NES | Board | - |
| Bakushou!! Jinsei Gekijou (Oct 13, 1988 prototype) | 13 October 1988 | NES | Board | - |
| Baldur's Gate (Oct 4, 2000 prototype) | 4 October 2000 08:07:44 | PlayStation | Roleplaying | ✓ |
| Baldur's Gate: Dark Alliance (Jun 22, 2002 prototype) | 22 June 2002 00:51:44 | Xbox | Action-RPG | - |
| Baldur's Gate: Dark Alliance (Oct 14, 2002 prototype) | 14 October 2002 | Nintendo GameCube | Role Playing | - |
| Baldur's Gate: Dark Alliance (Oct 7, 2001 prototype) | 7 October 2001 16:14:12 | PlayStation 2 | Role-playing | - |
| Ball Breakers (Oct 24, 2000 prototype) | 24 October 2000 | Dreamcast | Action | ✓ |
| Ball Busters (Prototype) | | Gizmondo | Action | ✓ |
| Ballz 3D: Fighting at Its Ballziest (Japanese Prototype) | | SNES | Fighting | - |
| Ballz 3D: Fighting at Its Ballziest (Prototype) | | SNES | Fighting | - |
| Ballz 3D: Fighting at its Ballziest (June prototype) | June 1994 | Sega Mega Drive | Fighting | - |
| Ballz 3D: Fighting at its Ballziest (September build) | September 1994 | Sega Mega Drive | Fighting | - |
| Baltron (prototype) | | NES | Shoot 'em up | - |
| Banana (Earlier prototype) | | NES | Puzzle | - |
| Banana (Jun 30, 1986 prototype) | 30 June 1986 | NES | Puzzle | - |
| Band of Bugs (DLC Map Pack 1 prototype) | | Xbox 360 | Strategy | - |
| Band of Bugs (DLC Map Pack 2 prototype) | | Xbox 360 | Strategy | - |
| BandFuse: Rock Legends (Sep 30, 2013 prototype) | 30 September 2013 | Xbox 360 | Music | - |
| Bandfuse: Rock Legends (Dec 14, 2013 prototype) | 14 December 2013 00:00:00 | Xbox 360 | Rhythm | - |
| Bandfuse: Rock Legends (Feb 4, 2014 prototype) | 4 February 2014 00:00:00 | Xbox 360 | Rhythm | - |
| Bandfuse: Rock Legends (Sep 30, 2013 prototype) | 30 September 2013 00:00:00 | Xbox 360 | Rhythm | - |
| Bang Bang Racing (Oct 26, 2011 prototype) | 26 October 2011 | Xbox 360 | Racing | - |
| Bangai-O (Apr 14, 2000 prototype) | 14 April 2000 15:37:16 | Dreamcast | Shooter | - |
| Bangai-O HD: Missile Fury (Dec 14, 2010 prototype) | 14 December 2010 | Xbox 360 | Shoot 'em up | - |
| Banjo-Kazooie (December 16, 1997 debug disk A) | 16 December 1997 | Nintendo 64DD | Platformer | - |
| Banjo-Kazooie (December 16, 1997 debug disk B) | 16 December 1997 | Nintendo 64DD | Platformer | - |
| Banjo-Kazooie: Grunty's Revenge (0.37.08 prototype) | | Game Boy Advance | Platformer | - |
| Banjo-Kazooie: Grunty's Revenge (0.40.58 debug prototype) | | Game Boy Advance | Platformer | - |
| Banjo-Kazooie: Nuts & Bolts (Oct 16, 2008 prototype) | 16 October 2008 14:23:32 | Xbox 360 | Action | - |
| Banjo-Pilot (Sep 29, 2004 prototype) | 29 September 2004 | Game Boy Advance | Racing | - |
| Banjo-Pilot (Voxel prototype) | | Game Boy Advance | Racing | - |
| Bankshot Billiards 2 (Jan 18, 2007 prototype) | 18 January 2007 | Xbox 360 | Billiards | - |
| Bankshot Billiards 2 (Mar 1, 2007 prototype) | 1 March 2007 | Xbox 360 | Billiards | - |
| Bankshot Billiards 2 (Nov 6, 2005 prototype) | 6 November 2005 | Xbox 360 | Billiards | - |
| Barbarian (Apr 13, 2001 GBA prototype) | 13 April 2001 15:38:26 | Game Boy Advance | Fighting | ✓ |
| Barbarian (Jul 24, 2001 prototype) | 24 July 2001 16:00:32 | PlayStation 2 | Action | - |
| Barbarian (Jun 20, 2001 GBA prototype) | 20 June 2001 18:12:24 | Game Boy Advance | Fighting | ✓ |
| Barbie & Her Sisters: Puppy Rescue (Aug 31, 2015 prototype) | 31 August 2015 | Nintendo 3DS | | - |
| Barbie & Her Sisters: Puppy Rescue (Jun 10, 2015 prototype) | 10 June 2015 | Nintendo 3DS | | - |
| Barbie Super Model (Jun 30, 1993 prototype) | 30 June 1993 | Sega Mega Drive | Adventure | - |
| Barbie Super Model (Prototype) | | Game Gear | Action | ✓ |
| Barbie and the Magic of Pegasus (Apr 15, 2005 prototype) | 15 April 2005 18:51:02 | Game Boy Advance | | - |
| Barbie and the Magic of Pegasus (Feb 18, 2005 prototype) | 18 February 2005 15:02:10 | Game Boy Advance | | - |
| Barbie and the Magic of Pegasus (Jan 21, 2005 prototype) | 21 January 2005 15:21:02 | Game Boy Advance | | - |
| Barbie and the Magic of Pegasus (Mar 18, 2005 prototype) | 18 March 2005 17:29:50 | Game Boy Advance | | - |
| Barbie: Game Girl (Prototype) | | Game Boy | Action | - |
| Barbie: Groom and Glam Pups (Prototype) | | Nintendo DS | | - |
| Barbie: Jet, Set & Style (Prototype) | | Nintendo DS | | - |
| Barbie: Vacation Adventure (Prototype) | | Sega Mega Drive | Adventure | ✓ |
| Barbie: Vacation Adventure (SNES Prototype) | | SNES | Adventure | ✓ |
| Barkley Shut Up and Jam! (Early prototype) | | Atari Jaguar | Sports | ✓ |
| Barkley Shut Up and Jam! (Prototype) | | Atari Jaguar | Sports | ✓ |
| Barkley Shut Up and Jam! 2 (Prototype) | | Sega Mega Drive | Sports - Basketball | - |
| Barney's Hide & Seek Game (Sep 18, 1993 build) | 18 September 1993 19:01:44 | Sega Mega Drive | Adventure | - |
| Barnyard (Prototype) | | Game Boy Advance | Action | - |
| Barotrauma (Aug 17, 2015 prototype) | 17 August 2015 | PC | Strategy, Simulation | - |
| Barotrauma (Sep 6, 2019 prototype) | 6 September 2019 | PC | Strategy, Simulation | - |
| Bases Loaded (Dec 16, 1987 prototype) | 16 December 1987 | NES | Sports - Baseball | - |
| Bashi Bazook: Morphoid Masher (May 29, 1989 prototype) | 29 May 1989 | NES | Action-adventure | - |
| Basketball Nightmare (Prototype A) | | Sega Master System | Action | - |
| Basketball Nightmare (Prototype B) | | Sega Master System | Action | - |
| Bass Circuit Pro (May 4, 2003 prototype) | 4 May 2005 23:32:54 | Xbox | Fishing | ✓ |
| Bass Landing (Aug 5, 1999 prototype) | 5 August 1999 00:00:00 | PlayStation | Fishing | - |
| Bass Masters 2000 (Prototype) | | Nintendo 64 | Fishing | - |
| Bastion (Jul 22, 2009 prototype) | 22 July 2009 | Xbox 360 | Action RPG | - |
| Batman (Aug 1989 prototype) | August 1989 | NES | Action | - |
| Batman (Earlier prototype) | | NES | Action | - |
| Batman (Software Creations prototype) | | SNES | Beat 'em up | ✓ |
| Batman Begins (May 1, 2005 prototype) | 1 May 2005 13:26:36 | Nintendo GameCube | Action | - |
| Batman Forever (NAPALM prototype) | | SNES | Action | - |
| Batman Forever: The Arcade Game (Oct 28, 1996 prototype) | 28 October 1996 | PC | Arcade | - |
| Batman Returns (Apr 23, 1993 prototype) | 23 April 1993 16:34:29 | Sega CD | Action | - |
| Batman Returns (PAL prototype) | | NES | Action | - |
| Batman Returns (SNES prototype) | | SNES | Action | - |
| Batman: Arkham Asylum (DLC Prey in the Darkness Map Pack prototype A) | | Xbox 360 | Action-Adventure | - |
| Batman: Arkham Asylum (DLC Prey in the Darkness Map Pack prototype B) | | Xbox 360 | Action-Adventure | - |
| Batman: Arkham Asylum (DLC Prey in the Darkness Map Pack prototype C) | | Xbox 360 | Action-Adventure | - |
| Batman: Arkham Asylum (Dec 11, 2007 Prototype) | 11 December 2007 | Xbox 360 | Action-adventure | - |
| Batman: Arkham Asylum (EU demo) | | PlayStation 3 | Action-adventure | - |
| Batman: Arkham Asylum (USA demo) | | PlayStation 3 | Action-adventure | - |
| Batman: Arkham Asylum (prototype) | | Nintendo DS | Action-adventure | ✓ |
| Batman: Arkham City (EU demo) | | PlayStation 3 | Action Adventure | - |
| Batman: Arkham City (Jan 20, 2012 prototype) | 20 January 2012 11:53:39 | Xbox 360 | Action Adventure | - |
| Batman: Arkham City (Jul 13, 2013 prototype) | 13 July 2013 | PC | Action-Adventure | - |
| Batman: Arkham City (USA demo) | | PlayStation 3 | Action Adventure | - |
| Batman: Arkham Knight (Nov 17, 2015 prototype) | 17 November 2015 | PC | Action-Adventure | - |
| Batman: Arkham Origins (Apr 15, 2013 Multiplayer prototype) | 15 April 2013 19:32:12 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Apr 17, 2013 Multiplayer prototype) | 17 April 2013 15:28:21 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Apr 25, 2013 prototype) | 25 April 2013 07:36:52 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 1, 2012 Multiplayer prototype) | 1 August 2012 14:36:00 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 10, 2013 Multiplayer prototype) | 10 August 2013 03:33:06 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 13, 2012 Multiplayer prototype) | 13 August 2012 12:00:23 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 14, 2012 Multiplayer prototype) | 14 August 2012 03:25:09 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 15, 2012 Multiplayer prototype) | 15 August 2012 03:25:07 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 16, 2012 Multiplayer prototype) | 16 August 2012 14:05:20 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 16, 2013 Multiplayer prototype) | 16 August 2013 10:29:53 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 17, 2012 03.25 Multiplayer prototype) | 17 August 2012 03:25:03 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 17, 2012 13.05 Multiplayer prototype) | 17 August 2012 13:05:38 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 18, 2013 Multiplayer prototype) | 18 August 2013 00:23:37 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 19, 2013 16.53 Multiplayer prototype) | 19 August 2013 16:53:32 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 19, 2013 18.50 Multiplayer prototype) | 19 August 2013 18:50:28 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 2, 2012 Multiplayer prototype) | 2 August 2012 14:44:17 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 24, 2013 19.41 Multiplayer prototype) | 24 August 2013 19:41:15 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 24, 2013 23.40 Multiplayer prototype) | 24 August 2013 23:40:46 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 29, 2013 03.15 Multiplayer prototype) | 29 August 2013 03:15:33 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 29, 2013 14.44 Multiplayer prototype) | 29 August 2013 14:44:21 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 3, 2012 Multiplayer prototype) | 3 August 2012 03:27:26 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 7, 2013 Multiplayer prototype) | 7 August 2013 14:34:55 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 8, 2013 01.58 Multiplayer prototype) | 8 August 2013 01:58:33 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 8, 2013 23.38 Multiplayer prototype) | 8 August 2013 23:38:53 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Aug 9, 2013 Multiplayer prototype) | 9 August 2013 09:09:58 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 11, 2012 00.34 Multiplayer prototype) | 11 December 2012 00:34:06 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 11, 2012 12.26 Multiplayer prototype) | 11 December 2012 12:29:30 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 11, 2012 14.15 Multiplayer prototype) | 11 December 2012 14:19:12 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 11, 2012 16.09 Multiplayer prototype) | 11 December 2012 16:12:17 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 11, 2012 Multiplayer prototype) | 11 December 2012 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 12, 2012 09.25 Multiplayer prototype) | 12 December 2012 09:25:26 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 12, 2012 11.13 Multiplayer prototype) | 12 December 2012 11:13:47 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 12, 2012 13.02 Multiplayer prototype) | 12 December 2012 13:02:42 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 12, 2012 15.30 Multiplayer prototype) | 12 December 2012 15:30:01 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 12, 2012 18.15 Multiplayer prototype) | 12 December 2012 18:15:57 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 13, 2012 01.22 Multiplayer prototype) | 13 December 2012 01:22:36 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 13, 2012 B Multiplayer prototype) | 13 December 2012 | Xbox 360 | Brawler, Action-Adventure | - |
| Batman: Arkham Origins (Dec 13, 2012 Multiplayer prototype) | 13 December 2012 21:44:47 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 15, 2012 Multiplayer prototype) | 15 December 2012 04:34:21 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 17, 2012 12.29 Multiplayer prototype) | 17 December 2012 12:29:02 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 17, 2012 14.18 Multiplayer prototype) | 17 December 2012 14:18:06 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 18, 2012 Multiplayer prototype) | 18 December 2012 00:33:09 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 3, 2012 Multiplayer prototype) | 3 December 2012 16:52:46 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 5, 2013 Multiplayer prototype) | 5 December 2013 00:40:21 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 6, 2012 01.32 Multiplayer prototype) | 6 December 2012 01:32:10 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 6, 2012 13.03 Multiplayer prototype) | 6 December 2012 13:03:24 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 6, 2012 prototype) | 6 December 2012 06:28:30 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 7, 2012 10.20 Multiplayer prototype) | 7 December 2012 10:20:15 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Dec 7, 2012 16.14 Multiplayer prototype) | 7 December 2012 16:14:04 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Feb 1, 2013 prototype) | 1 February 2013 22:48:33 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Feb 14, 2013 Multiplayer prototype) | 14 February 2013 13:38:16 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jan 20, 2012 Multiplayer prototype) | 20 January 2012 11:53:39 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jan 30, 2013 Multiplayer prototype) | 30 January 2013 15:04:13 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jul 11, 2013 Multiplayer Prototype) | 11 July 2013 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jul 13, 2012 15.45 Multiplayer prototype) | 13 July 2012 15:45:11 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jul 13, 2012 18.52 Multiplayer prototype) | 13 July 2012 18:52:58 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jul 14, 2012 Multiplayer prototype) | 14 July 2012 05:28:49 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jul 16, 2012 Multiplayer prototype) | 16 July 2012 17:51:19 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jul 16, 2013 Multiplayer prototype) | 16 July 2013 17:21:38 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jul 2, 2012 Multiplayer prototype) | 2 July 2012 12:47:54 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jul 23, 2013 prototype) | 23 July 2013 13:57:03 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jul 9, 2013 Multiplayer prototype) | 9 July 2013 23:58:50 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 1, 2013 04.06 Multiplayer prototype) | 1 June 2013 04:06:11 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 12, 2013 Multiplayer prototype) | 12 June 2013 02:59:39 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 13, 2013 Multiplayer prototype) | 13 June 2013 20:04:04 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 15, 2013 Multiplayer prototype) | 15 June 2013 23:37:27 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 17, 2013 Multiplayer B prototype) | 17 June 2013 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 17, 2013 Multiplayer prototype) | 17 June 2013 15:47:46 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 18, 2012 Multiplayer prototype) | 18 June 2012 11:57:36 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 18, 2013 02.32 Multiplayer prototype) | 18 June 2013 02:32:54 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 18, 2013 20.26 Multiplayer prototype) | 18 June 2013 20:26:59 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 22, 2012 Multiplayer prototype) | 22 June 2012 10:14:23 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 25, 2012 10.39 Multiplayer prototype) | 25 June 2012 10:39:13 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 25, 2012 12.38 Multiplayer prototype) | 25 June 2012 12:38:45 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 25, 2013 Multiplayer prototype) | 25 June 2013 09:38:50 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 26, 2013 Multiplayer prototype) | 26 June 2013 23:38:49 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 4, 2013 Multiplayer prototype) | 4 June 2013 13:10:07 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 8, 2013 03.25 Multiplayer prototype) | 8 June 2013 03:25:07 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Jun 8, 2013 13.57 Multiplayer prototype) | 8 June 2013 13:57:06 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Mar 1, 2013 Multiplayer prototype) | 1 March 2013 17:18:57 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Mar 11, 2013 16.02 Multiplayer prototype) | 11 March 2013 16:02:00 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Mar 11, 2013 18.55 Multiplayer prototype) | 11 March 2013 18:55:31 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Mar 11, 2013 21.28 Multiplayer prototype) | 11 March 2013 21:28:52 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Mar 12, 2013 11.59 Multiplayer prototype) | 12 March 2013 11:59:38 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Mar 12, 2013 13.28 Multiplayer prototype) | 12 March 2013 13:28:47 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Mar 13, 2013 Multiplayer prototype) | 13 March 2013 10:09:03 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Mar 14, 2013 07.18 prototype) | 14 March 2013 07:18:37 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Mar 14, 2013 14.59 Multiplayer prototype) | 14 March 2013 14:59:22 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Mar 15, 2013 Multiplayer prototype) | 15 March 2013 12:49:34 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Mar 2, 2013 Multiplayer prototype) | 2 March 2013 04:23:43 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (May 10, 2013 Multiplayer prototype) | 10 May 2013 11:49:13 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (May 11, 2013 Multiplayer prototype) | 11 May 2013 16:32:20 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (May 14, 2013 Multiplayer prototype) | 14 May 2013 23:37:21 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (May 15, 2013 12.20 Multiplayer prototype) | 15 May 2013 12:20:41 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (May 15, 2013 Multiplayer prototype) | 15 May 2013 12:20:41 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (May 16, 2013 00.33 Multiplayer prototype) | 16 May 2013 00:33:12 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (May 16, 2013 16.14 Multiplayer prototype) | 16 May 2013 16:14:15 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (May 2, 2013 Multiplayer prototype) | 2 May 2013 16:31:13 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (May 23, 2013 Multiplayer prototype) | 23 May 2013 15:41:05 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (May 30, 2013 Multiplayer prototype) | 30 May 2013 17:30:40 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (May 31, 2013 12.38 Multiplayer prototype) | 31 May 2013 12:38:10 | Xbox 360 | Brawler, Action-Adventure | - |
| Batman: Arkham Origins (May 31, 2013 12.56 Multiplayer prototype) | 31 May 2013 12:56:25 | Xbox 360 | Brawler, Action-Adventure | - |
| Batman: Arkham Origins (May 31, 2013 20.03 Multiplayer prototype) | 31 May 2013 20:03:07 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (May 8, 2013 Multiplayer prototype) | 8 May 2013 14:58:00 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (May 9, 2013 Multiplayer prototype) | 9 May 2013 17:28:08 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 1, 2013 Multiplayer prototype) | 1 November 2013 13:20:33 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 11, 2013 Multiplayer prototype) | 11 November 2013 12:20:38 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 14, 2013 Multiplayer prototype) | 14 November 2013 16:54:20 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 15, 2012 Multiplayer prototype) | 15 November 2012 00:32:43 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 16, 2012 Multiplayer prototype) | 16 November 2012 14:20:12 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 2, 2012 15.58 Multiplayer prototype) | 2 November 2012 15:58:40 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 2, 2012 17.42 Multiplayer prototype) | 2 November 2012 17:42:16 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 2, 2012 19.58 Multiplayer prototype) | 2 November 2012 19:58:21 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 2, 2012 21.33 Multiplayer prototype) | 2 November 2012 21:33:19 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 21, 2012 Multiplayer prototype) | 21 November 2012 00:30:09 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 22, 2013 Multiplayer prototype) | 22 November 2013 | PlayStation 3 | Brawler, Action-Adventure | - |
| Batman: Arkham Origins (Nov 23, 2012 Multiplayer prototype) | 23 November 2012 10:37:02 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 3, 2012 Multiplayer prototype) | 3 November 2012 19:18:30 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 4, 2012 17.05 Multiplayer prototype) | 4 November 2012 17:05:34 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 4, 2012 18.36 Multiplayer prototype) | 4 November 2012 18:36:15 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 4, 2012 21.28 Multiplayer prototype) | 4 November 2012 21:28:15 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 5, 2012 12.05 Multiplayer prototype) | 5 November 2012 12:05:58 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 5, 2012 13.43 Multiplayer prototype) | 5 November 2012 13:43:55 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 5, 2012 16.10 Multiplayer prototype) | 5 November 2012 16:10:09 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 5, 2012 19.22 Multiplayer prototype) | 5 November 2012 19:22:33 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 6, 2012 10.30 Multiplayer prototype) | 6 November 2012 10:30:14 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 6, 2012 12.14 Multiplayer prototype) | 6 November 2012 12:14:25 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 6, 2012 12.15 Multiplayer prototype) | 6 November 2012 12:15:20 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 6, 2012 12.59 Multiplayer prototype) | 6 November 2012 12:59:11 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 7, 2013 Multiplayer prototype) | 7 November 2013 17:23:44 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Nov 8, 2013 Multiplayer prototype) | 8 November 2013 11:59:19 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Oct 11, 2012 Disc Swap Test prototype) | 11 October 2012 14:52:44 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Oct 16, 2013 Multiplayer prototype) | 16 October 2013 16:16:15 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Oct 18, 2012 Multiplayer prototype) | 18 October 2012 15:15:34 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Oct 5, 2012 Multiplayer prototype) | 5 October 2012 13:15:18 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Oct 8, 2012 Multiplayer prototype) | 8 October 2012 12:29:48 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 10, 2013 Multiplayer prototype) | 10 September 2013 03:25:39 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 11, 2012 Multiplayer prototype) | 11 September 2012 20:02:58 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 12, 2013 17.05 Multiplayer prototype) | 12 September 2013 17:05:36 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 12, 2013 19.49 Multiplayer prototype) | 12 September 2013 19:49:39 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 15, 2012 Multiplayer prototype) | 15 September 2012 00:20:09 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 17, 2012 03.59 Multiplayer prototype) | 17 September 2012 09:59:26 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 17, 2012 06.42 Multiplayer prototype) | 17 September 2012 12:42:43 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 17, 2012 11.47 Multiplayer prototype) | 17 September 2012 11:47:20 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 17, 2012 13.42 Multiplayer prototype) | 17 September 2012 12:42:43 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 19, 2012 Multiplayer prototype) | 19 September 2012 14:09:58 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 2, 2013 Multiplayer prototype) | 2 September 2013 15:49:31 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 20, 2013 Multiplayer prototype) | 20 September 2013 08:38:04 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 21, 2013 Multiplayer prototype) | 21 September 2013 23:37:47 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 23, 2013 18.59 Multiplayer prototype) | 23 September 2013 18:59:09 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 23, 2013 23.44 Multiplayer prototype) | 23 September 2013 23:44:26 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 27, 2012 12.41 Multiplayer prototype) | 27 September 2012 12:41:08 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 27, 2012 13.41 Multiplayer prototype) | 27 September 2012 13:41:23 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 3, 2012 Multiplayer prototype) | 3 September 2012 11:15:01 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 30, 2013 Multiplayer prototype) | 30 September 2013 15:34:08 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 4, 2013 02.46 Multiplayer prototype) | 4 September 2013 02:46:48 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 4, 2013 17.45 Multiplayer prototype) | 4 September 2013 17:45:53 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 5, 2013 Multiplayer prototype) | 5 September 2013 17:11:16 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 6, 2012 Multiplayer prototype) | 6 September 2012 18:12:04 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 7, 2012 Multiplayer prototype) | 7 September 2012 15:12:31 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 8, 2013 Multiplayer prototype) | 8 September 2013 18:08:11 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 9, 2013 Multiplayer Xbox 360 prototype) | 9 September 2013 18:02:29 | Xbox 360 | Action Adventure | - |
| Batman: Arkham Origins (Sep 9, 2013 Multiplayer prototype) | 9 September 2013 | PlayStation 3 | Brawler, Action-Adventure | - |
| Batman: Arkham Origins Blackgate (May 30, 2013 Prototype) | 30 May 2013 | PlayStation Vita | Action-adventure, beat 'em up, stealth, Metroidvania | - |
| Batman: Dark Tomorrow (Aug 25, 2002 prototype) | 25 August 2002 | Nintendo GameCube | Action-adventure | - |
| Batman: Dark Tomorrow (Feb 26, 2003 prototype) | 26 February 2003 | Xbox | Action-adventure | - |
| Batman: Return of the Joker (Prototype) | | NES | Action | - |
| Batman: Revenge of the Joker (Prototype) | | SNES | Action | ✓ |
| Batman: Rise of Sin Tzu (Aug 15, 2003 prototype) | 15 August 2003 07:55:56 | PlayStation 2 | Beat-em-Up | - |
| Batman: Vengeance (Aug 29, 2001 prototype) | 29 August 2001 15:37:20 | PlayStation 2 | Action | - |
| Battle Arena Toshinden URA (Nov 7, 1996 prototype) | 7 November 1996 21:53:18 | Sega Saturn | Fighting | - |
| Battle Assault 3 featuring Gundam Seed (Aug 1, 2004 prototype) | 1 August 2004 19:10:46 | PlayStation 2 | Fighting | - |
| Battle Assault 3 featuring Gundam Seed (Aug 13, 2004 prototype) | 13 August 2004 17:05:11 | PlayStation 2 | Fighting | - |
| Battle Assault 3 featuring Gundam Seed (Aug 19, 2004 prototype) | 19 August 2004 19:26:07 | PlayStation 2 | Fighting | - |
| Battle Assault 3 featuring Gundam Seed (Aug 27, 2004 prototype) | 27 August 2004 17:48:35 | PlayStation 2 | Fighting | - |
| Battle Assault 3 featuring Gundam Seed (Aug 31, 2004 prototype) | 31 August 2004 08:32:58 | PlayStation 2 | Fighting | - |
| Battle Assault 3 featuring Gundam Seed (Jul 19, 2004 prototype) | 19 July 2004 20:06:58 | PlayStation 2 | Fighting | - |
| Battle Assault 3 featuring Gundam Seed (Sep 10, 2004 prototype) | 10 September 2004 07:23:25 | PlayStation 2 | Fighting | - |
| Battle Assault 3 featuring Gundam Seed (Sep 13, 2004 prototype) | 13 September 2004 12:11:25 | PlayStation 2 | Fighting | - |
| Battle Assault 3 featuring Gundam Seed (Sep 17, 2004 prototype) | 17 September 2004 03:09:53 | PlayStation 2 | Fighting | - |
| Battle Assault 3 featuring Gundam Seed (Sep 8, 2004 prototype) | 8 September 2004 08:09:08 | PlayStation 2 | Fighting | - |
| Battle Blaze (Prototype A) | | SNES | Fighting | - |
| Battle Blaze (Prototype B) | | SNES | Fighting | - |
| Battle Fantasia (Apr 9, 2008 prototype) | 9 April 2008 | Xbox 360 | Fighting | - |
| Battle Mania (May 28, 1991 prototype) | 28 May 1991 15:22:58 | Sega Mega Drive | Shooter | - |
| Battle Master: Kyuukyoku no Senshi-tachi (Prototype) | | SNES | Fighting | - |
| Battle Out Run (Prototype) | | Sega Master System | Action | - |
| Battle Ships (Prototype) | | Game Boy | Action | - |
| Battle Squadron (Jan 18, 1991 prototype) | 18 January 1991 14:24:36 | Sega Mega Drive | Shooter | - |
| Battle Wings (Prototype) | | Sega Master System | Shooters | - |
| Battle vs. Chess (Feb 6, 2012 prototype) | 6 February 2012 | PlayStation Portable | Board game | ✓ |
| Battle: Los Angeles (Feb 14, 2011 prototype) | 14 February 2011 | Xbox 360 | Shooter | - |
| Battle: Los Angeles (Feb 28, 2011 Prototype) | | Xbox 360 | FPS | - |
| Battle: Los Angeles (Feb 28, 2011 prototype) | 28 February 2011 | Xbox 360 | First-Person Shooter | - |
| Battle: Los Angeles (Jan 31, 2011 prototype) | 31 January 2011 | Xbox 360 | Shooter | - |
| BattleBots (Alpha 4.6 prototype) | | Nintendo GameCube | Action | ✓ |
| BattleSport (May 11, 1995 prototype) | 11 May 1995 | 3DO | Sports | - |
| Battlecorps (Feb 11, 1994 prototype) | 11 February 1994 16:07:39 | Sega CD | Action | - |
| Battlecruiser 3000AD (Nov 8, 1995 prototype) | 8 November 1995 14:39:32 | PC | Space trading and combat simulator | - |
| Battlefield 1943 (Jun 24, 2009 prototype) | 24 June 2009 | Xbox 360 | FPS | - |
| Battlefield 1943 (Jun 3, 2009 prototype) | 3 June 2009 | Xbox 360 | FPS | - |
| Battlefield 1943 (Mar 18, 2009 prototype) | 18 March 2009 | PlayStation 3 | Action, First-Person Shooter, Vehicular Combat | - |
| Battlefield 1943 (May 13, 2009 prototype) | 13 May 2009 | Xbox 360 | Shooter | - |
| Battlefield 1943 (May 26, 2009 prototype) | 26 May 2009 12:51:03 | Xbox 360 | First Person Shooter | - |
| Battlefield 2 (May 21, 2005 demo) | 21 May 2005 | PC | Action, Shooter, First-Person Shooter, Vehicular Combat | - |
| Battlefield 2: Modern Combat (Aug 15, 2005 prototype) | 15 August 2005 18:48:05 | PlayStation 2 | First Person Shooter | - |
| Battlefield 2: Modern Combat (Aug 17, 2005 prototype) | 17 August 2005 17:52:59 | Xbox | Action-RPG | - |
| Battlefield 2: Modern Combat (Aug 25, 2005 demo) | 25 August 2005 | PlayStation 2 | First Person Shooter | - |
| Battlefield 2: Modern Combat (Feb 14, 2006 EU prototype) | 14 February 2006 | Xbox 360 | FPS | - |
| Battlefield 2: Modern Combat (Feb 14, 2006 USA prototype) | 14 February 2006 | Xbox 360 | FPS | - |
| Battlefield 2: Modern Combat (Jan 20, 2005 prototype) | 20 January 2005 | PlayStation 2 | First Person Shooter | - |
| Battlefield 2: Modern Combat (Sep 17, 2005 prototype) | 17 September 2005 19:06:13 | PlayStation 2 | First Person Shooter | - |
| Battlefield 3 (Aug 8, 2011 USA Multiplayer prototype) | 8 August 2011 13:31:00 | PlayStation 3 | First-Person Shooter, Vehicular Combat | - |
| Battlefield 3 (Jan 25, 2013 Patch Data prototype) | 25 January 2013 | PlayStation 3 | First-Person Shooter, Vehicular Combat Franchises: Battlefield | - |
| Battlefield 3 (Jul 13, 2011 Multiplayer prototype) | 13 July 2011 | PC | First-Person Shooter, Vehicular Combat | - |
| Battlefield 3 (Jul 27, 2011 Multiplayer prototype) | 27 July 2011 | PC | First-Person Shooter, Vehicular Combat | - |
| Battlefield 3 (Nov 3, 2011 Patch Data prototype) | 3 November 2011 21:45:00 | PlayStation 3 | First-Person Shooter, Vehicular Combat | - |
| Battlefield 3 (Oct 1, 2011 prototype) | 1 October 2011 | PlayStation 3 | First-Person Shooter, Vehicular Combat | - |
| Battlefield 3 (Sep 22, 2011 Multiplayer prototype) | 22 September 2011 | PC | First-Person Shooter, Vehicular Combat | - |
| Battlefield 3 (Sep 7, 2011 EU Multiplayer prototype) | 7 September 2011 | PlayStation 3 | First-Person Shooter, Vehicular Combat | - |
| Battlefield 3 (Sep 7, 2011 Multiplayer prototype) | 7 September 2011 | Xbox 360 | FPS | - |
| Battlefield 3 (Sep 7, 2011 USA Multiplayer prototype) | 7 September 2011 | PlayStation 3 | First-Person Shooter, Vehicular Combat | - |
| Battlefield 4 (Jun 18, 2013 Multiplayer prototype) | 18 June 2013 | PC | First-Person Shooter | - |
| Battlefield 4 (Jun 24, 2013 Multiplayer prototype) | 24 June 2013 13:46:44 | PC | First-Person Shooter | - |
| Battlefield 4 (Jun 3, 2013 Multiplayer prototype) | 3 June 2013 | Xbox 360 | FPS | - |
| Battlefield 4 (Jun 6, 2013 Multiplayer prototype) | 6 June 2013 02:00:54 | Xbox 360 | FPS | - |
| Battlefield 4 (Oct 14, 2013 prototype) | 14 October 2013 | PlayStation 3 | First-Person Shooter | - |
| Battlefield 4 (Oct 8, 2013 Multiplayer prototype) | 8 October 2013 18:35:36 | PC | First-Person Shooter | - |
| Battlefield 4 (Oct 9, 2013 prototype) | 9 October 2013 | PlayStation 3 | First-Person Shooter | - |
| Battlefield 4 (Sep 16, 2013 EU Multiplayer prototype) | 16 September 2013 22:20:38 | PlayStation 3 | First-Person Shooter | - |
| Battlefield 4 (Sep 16, 2013 JP Multiplayer prototype) | 16 September 2013 22:20:38 | PlayStation 3 | First-Person Shooter | - |
| Battlefield 4 (Sep 16, 2013 Multiplayer prototype) | 16 September 2013 22:30:57 | PC | First-Person Shooter | - |
| Battlefield 4 (Sep 16, 2013 USA Multiplayer prototype) | 16 September 2013 22:20:38 | PlayStation 3 | First-Person Shooter | - |
| Battlefield 4 (Sep 17, 2013 USA Multiplayer prototype) | 17 September 2013 | PlayStation 3 | First-Person Shooter | - |
| Battlefield 4 (Sep 24, 2013 Multiplayer prototype) | 24 September 2013 00:00:00 | Xbox 360 | First Person Shooter | - |
| Battlefield Hardline (Apr 22, 2014 Install Data prototype) | 22 April 2014 | PlayStation 3 | First-Person Shooter | - |
| Battlefield Hardline (Aug 24, 2014 prototype) | 24 August 2014 | PlayStation 3 | First-person shooter | - |
| Battlefield Hardline (Dec 10, 2014 Install Data prototype) | 10 December 2014 | PlayStation 3 | First-Person Shooter | - |
| Battlefield Hardline (Dec 4, 2014 prototype) | 4 December 2014 | PlayStation 3 | First-Person Shooter | - |
| Battlefield Hardline (Jan 17, 2015 Multiplayer prototype) | 17 January 2015 | Xbox 360 | Tactical | - |
| Battlefield Hardline (Jan 20, 2015 EU Multiplayer prototype) | 20 January 2015 21:59:06 | PlayStation 3 | First-Person Shooter | - |
| Battlefield Hardline (Jan 20, 2015 JP Multiplayer prototype) | 20 January 2015 21:59:06 | PlayStation 3 | First-Person Shooter | - |
| Battlefield Hardline (Jan 20, 2015 USA Multiplayer prototype) | 20 January 2015 21:59:06 | PlayStation 3 | First-Person Shooter | - |
| Battlefield Hardline (Jan 31, 2015 Multiplayer prototype) | 31 January 2015 | PC | First-Person Shooter | - |
| Battlefield Hardline (Jun 15, 2014 Multiplayer prototype) | 15 June 2014 | PC | First-Person Shooter | - |
| Battlefield Hardline (Jun 3, 2014 Multiplayer prototype) | 3 June 2014 | PC | First-Person Shooter | - |
| Battlefield: Bad Company (Apr 25, 2008 prototype) | 25 April 2008 00:00:00 | Xbox 360 | First Person Shooter | - |
| Battlefield: Bad Company (DLC Weapon Unlock 1 display name prototype) | | Xbox 360 | Action, First-Person Shooter | ✓ |
| Battlefield: Bad Company (EU demo) | | PlayStation 3 | Action, First-Person Shooter | - |
| Battlefield: Bad Company (JP demo) | | PlayStation 3 | Action, First-Person Shooter | - |
| Battlefield: Bad Company (Sep 18, 2009 Patch Data prototype) | 18 September 2009 18:11:00 | PlayStation 3 | Action, First-Person Shooter | - |
| Battlefield: Bad Company (USA demo) | | PlayStation 3 | Action, First-Person Shooter | - |
| Battlefield: Bad Company 2 (A Multiplayer prototype) | | PC | First-Person Shooter | - |
| Battlefield: Bad Company 2 (ASIA Multiplayer demo) | | PlayStation 3 | First-Person Shooter | - |
| Battlefield: Bad Company 2 (B Multiplayer prototype) | | PC | First-Person Shooter | - |
| Battlefield: Bad Company 2 (EU Multiplayer demo) | | PlayStation 3 | First-Person Shooter | - |
| Battlefield: Bad Company 2 (Jan 17, 2010 prototype) | 17 January 2010 | PlayStation 3 | First-Person Shooter | - |
| Battlefield: Bad Company 2 (Jan 18, 2010 prototype) | 18 January 2010 | Xbox 360 | First-person shooter | - |
| Battlefield: Bad Company 2 (Nov 2, 2010 prototype) | 2 November 2010 00:00:00 | Xbox 360 | First Person Shooter | - |
| Battlefield: Bad Company 2 (Nov 20, 2009 EU Multiplayer prototype) | 20 November 2009 | PlayStation 3 | First-Person Shooter | - |
| Battlefield: Bad Company 2 (Nov 20, 2009 USA Multiplayer prototype) | 20 November 2009 | PlayStation 3 | First-Person Shooter | - |
| Battlefield: Bad Company 2 (Patch Data prototype) | | Xbox 360 | First Person Shooter | - |
| Battlefield: Bad Company 2 (Sep 9, 2011 USA Limited Edition prototype) | 9 September 2011 | PlayStation 3 | First-Person Shooter | - |
| Battlefield: Bad Company 2 (Sep 9, 2011 USA prototype) | 9 September 2011 | PlayStation 3 | First-Person Shooter | - |
| Battlefield: Bad Company 2 (USA Multiplayer demo) | | PlayStation 3 | First-Person Shooter | - |
| Battlestar Galactica (Aug 22, 2003 prototype) | 22 August 2003 16:17:08 | Xbox | Space Flight Simulator | - |
| Battlestar Galactica (Aug 8, 2007 prototype) | 8 August 2007 | Xbox 360 | Action | - |
| Battlestar Galactica (Jul 31, 2007 DLC Expansion 1 prototype) | 31 July 2007 | Xbox 360 | Action | ✓ |
| Battlestar Galactica (Sep 21, 2007 prototype) | 21 September 2007 | Xbox 360 | Action | - |
| Battlestar Galactica (Sep 29, 2003 prototype) | 29 September 2003 23:16:41 | PlayStation 2 | Space Flight Simulator | - |
| Battlestations: Pacific (Mar 12, 2009 prototype) | 12 March 2009 | Xbox 360 | Action | - |
| Battletech: Gray Death Legion (Jan 5, 1995 prototype) | 5 January 1995 14:06:36 | Sega CD | Shooter | ✓ |
| Battletoads (GBA prototype) | | Game Boy Advance | Beat 'em up, platformer | ✓ |
| Battletoads (Prototype) | | NES | Beat em Up | - |
| Battletoads in Battlemaniacs (prototype) | | SNES | Beat 'em up, platformer | - |
| Battlezone (Aug 28, 2006 prototype) | 28 August 2006 16:38:31 | PlayStation Portable | Vehicular Combat | - |
| Battlezone (Feb 18, 1998 prototype) | 18 February 1998 | PC | | - |
| Battlezone (Feb 9, 1998 prototype) | 9 February 1998 02:06:24 | PC | | - |
| Battlezone (May 12, 1983 prototype) | 12 May 1983 | Atari 2600 | | - |
| Battlezone (May 2, 1983 prototype) | 2 May 1983 | Atari 2600 | | - |
| Battlezone (Oct 2, 2007 prototype) | 2 October 2007 | Xbox 360 | Action | - |
| Battlezone (Sep 13, 2006 prototype) | 13 September 2006 17:03:42 | PlayStation Portable | Vehicular Combat | - |
| Bayonetta (Jun 10, 2009 prototype) | 10 June 2009 | Xbox 360 | Action | - |
| Bayonetta (May 24, 2009 prototype) | 24 May 2009 | Xbox 360 | Action | - |
| Beach Volleyball (Apr 21, 2000 prototype) | 21 April 2000 | PlayStation | | - |
| Beach'n Ball (Nov 21, 2000 prototype) | 21 November 2000 | Game Boy Color | Sports - Volleyball | - |
| Bear Game (prototype) | | Atari 2600 | | ✓ |
| Beast Wrestler (Sep 13, 1991 prototype) | 13 September 1991 15:13:32 | Sega Mega Drive | Fighting | - |
| Beastball (Prototype) | | Sega Mega Drive | Action | ✓ |
| Beat Down: Fists of Vengeance (Jul 2, 2005 prototype) | 2 July 2005 14:24:10 | PlayStation 2 | Beat-em-Up | - |
| Beat Down: Fists of Vengeance (Jul 3, 2005 prototype) | 3 July 2005 19:37:02 | Xbox | Action-RPG, Beat-Em-Up | - |
| Beat Down: Fists of Vengeance (May 11, 2005 prototype) | 11 May 2005 23:44:51 | PlayStation 2 | Beat-em-Up | - |
| Beat'n Groovy (May 13, 2008 prototype) | 13 May 2008 08:04:33 | Xbox 360 | Rhythm | - |
| Beaterator (Aug 7, 2009 prototype) | 7 August 2009 | PlayStation Portable | Music | - |
| Beaterator (Jan 21, 2009 prototype) | 21 January 2009 11:02:28 | PlayStation Portable | Music | - |
| Beaterator (May 13, 2009 prototype) | 13 May 2009 11:42:26 | PlayStation Portable | Music | - |
| beatmania (Apr 20, 1999 prototype) | 20 April 1999 02:15:21 | PlayStation | Rhythm | - |
| Beautiful Katamari (DLC prototype) | | Xbox 360 | Action, Puzzle | ✓ |
| Beautiful Katamari (Sep 2, 2007 prototype) | 2 September 2007 05:05:03 | Xbox 360 | Action | - |
| Beauty Guide (Apr 4, 1995 prototype) | 4 April 1995 | Philips CD-i | FMV | ✓ |
| Beavis and Butt-Head (Game Gear Prototype) | | Game Gear | Action | - |
| Bee Movie Game (Jul 27, 2007 prototype) | 27 July 2007 | Xbox 360 | Action, Adventure | - |
| Beethoven's 2nd (Sep 13, 1993 prototype) | 13 September 1993 | SNES | Action | - |
| Beethoven's 2nd: The Quest for Pups (Prototype) | | Sega Mega Drive | Action | ✓ |
| Beetlejuice (Prototype) | | NES | Platformer | - |
| Beijing 2008 (Aug 22, 2008 prototype) | 22 August 2008 14:00:02 | Xbox 360 | Sports | - |
| Beijing 2008 (Jun 24, 2008 prototype) | 24 June 2008 14:07:50 | Xbox 360 | Sports | - |
| Beijing 2008 (Mar 27, 2008 prototype) | 27 March 2008 | Xbox 360 | Sports | - |
| Bejeweled 2 Deluxe (Nov 8, 2005 prototype) | 8 November 2005 | Xbox 360 | Puzzle | - |
| Ben 10 (Aug 5, 2007 prototype) | 5 August 2007 16:23:00 | PC | Action-Adventure | ✓ |
| Ben 10 Alien Force: The Rise of Hex (Apr 7, 2010 prototype) | 7 April 2010 | Xbox 360 | Puzzle | - |
| Ben 10 Alien Force: The Rise of Hex (Mar 8, 2010 prototype) | 8 March 2010 23:55:18 | Xbox 360 | Platformer | - |
| Ben 10 Ultimate Alien: Cosmic Destruction (prototype) | | Nintendo DS | Action, Brawler, Action-Adventure | - |
| Beowulf: The Game (Oct 22, 2007 prototype) | 22 October 2007 17:30:23 | PlayStation Portable | Action | - |
| Berenstain Bears (Aug 1, 1994 prototype) | 1 August 1994 21:59:02 | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 11, 1994 prototype A) | 11 August 1994 11:48:12 | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 11, 1994 prototype) | 11 August 1994 07:14:54 | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 12, 1994 prototype) | 12 August 1994 19:55:02 | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 13, 1994 prototype) | 13 August 1994 20:40:22 | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 14, 1994 prototype) | 14 August 1994 09:43:42 | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 19, 1994 prototype) | 19 August 1994 | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 20, 1994 prototype) | 20 August 1994 09:32:14 | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 24, 1994 prototype) | 23 August 1994 22:37:30 | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 25, 1994 prototype B) | 25 August 1994 11:28:36 | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 26, 1994 prototype B) | 26 August 1994 15:26:56 | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 26, 1994 prototype) | 26 August 1994 07:30:32 | Game Gear | Action Platformer | - |
| Berenstain Bears (Aug 27, 1994 prototype) | 27 August 1994 18:44:58 | Game Gear | Action Platformer | - |
| Berenstain Bears (Jul 15, 1994 prototype B) | 15 July 1994 16:24:24 | Game Gear | Action Platformer | - |
| Berenstain Bears (Jul 21, 1994 prototype) | 21 July 1994 09:15:14 | Game Gear | Action Platformer | - |
| Berenstain Bears (Jul 22, 1994 prototype) | 22 July 1994 22:54:10 | Game Gear | Action Platformer | - |
| Berenstain Bears (Jul 27, 1994 prototype) | 27 July 1994 22:15:56 | Game Gear | Action Platformer | - |
| Berenstain Bears (Jun 28, 1994 prototype) | 28 June 1994 14:34:10 | Game Gear | Action Platformer | - |
| Berenstain Bears' A School Day (Dec 20, 1994 prototype) | 20 December 1994 16:01:36 | Sega Pico | Educational | - |
| Berenstain Bears' A School Day (Jan 13, 1995 prototype) | 13 January 1995 16:03:16 | Sega Pico | Educational | - |
| Berenstain Bears' A School Day (Jan 16, 1995 prototype) | 16 January 1995 18:14:54 | Sega Pico | Educational | - |
| Berenstain Bears' A School Day (Jan 26, 1995 prototype) | 26 January 1995 14:10:12 | Sega Pico | Educational | - |
| Berenstain Bears' A School Day (Jan 27, 1995 prototype) | 27 January 1995 22:16:34 | Sega Pico | Educational | - |
| Berenstain Bears' A School Day (Jan 30, 1995 prototype) | 30 January 1995 13:02:26 | Sega Pico | Educational | - |
| Berenstain Bears' A School Day (Jan 31, 1995 prototype) | 31 January 1995 16:07:20 | Sega Pico | Educational | - |
| Berenstain Bears' A School Day (Jan 6, 1995 prototype) | 6 January 1995 16:55:26 | Sega Pico | Educational | - |
| Berserk: Millennium Falcon Hen Seima Senki no Shou (Jul 12, 2004 prototype) | 12 July 2004 10:28:00 | PlayStation 2 | Action | - |
| Best of the Best: Championship Karate (Prototype A) | | SNES | Fighting | - |
| Best of the Best: Championship Karate (Prototype B) | | SNES | Fighting | - |
| Bet on Soldier: Blood Sport (May 30, 2005 prototype) | 30 May 2005 | PC | Action, Shooter, First-Person Shooter | - |
| Beyblade V-Force: Ultimate Blader Jam (Prototype) | | Game Boy Advance | Action | - |
| Beyond (Sep 12, 2005 prototype) | 12 September 2005 | Xbox | Third-person shooter | ✓ |
| Beyond Divinity (Feb 26, 2004 demo) | 26 February 2004 | PC | RPG | - |
| Beyond Good & Evil (Aug 14, 2003 prototype) | 14 August 2003 15:58:16 | PlayStation 2 | Action Adventure | - |
| Beyond Good & Evil (Oct 13, 2003 prototype) | 13 October 2003 | PlayStation 2 | | - |
| Beyond Good & Evil (Sep 15, 2003 prototype) | 15 September 2003 05:05:54 | PlayStation 2 | Action Adventure | - |
| Beyond Good & Evil (Sep 9, 2003 prototype) | 9 September 2003 09:06:55 | PlayStation 2 | Action Adventure | - |
| Beyond Good & Evil HD (Jan 13, 2011 prototype) | 13 January 2011 | Xbox 360 | Action Adventure | - |
| Beyond Good & Evil HD (Jan 18, 2011 prototype) | 18 January 2011 04:09:35 | Xbox 360 | Action Adventure | - |
| Beyond Good & Evil HD (Jan 20, 2011 prototype) | 20 January 2011 | Xbox 360 | Action Adventure | - |
| Beyond Good & Evil HD (Mar 3, 2006 Preview prototype) | | Xbox 360 | Action Adventure | - |
| Beyond Good & Evil HD (Mar 3, 2006 Review prototype) | | Xbox 360 | Action Adventure | - |
| Beyond Oasis (Apr 1994 prototype) | April 1994 | Sega Mega Drive | Role-Playing | - |
| Beyond Oasis (Nov 1, 1994 prototype) | 1 November 1994 16:05:02 | Sega Mega Drive | Role-Playing | - |
| Beyond Oasis (Nov 15, 1994 prototype) | 17 November 1994 10:00:00 | Sega Mega Drive | Role-Playing | - |
| Beyond Oasis (Oct 17, 1994 prototype) | 19 October 1994 10:22:48 | Sega Mega Drive | Role-Playing | - |
| Beyond Oasis (Oct 4, 1994 prototype) | 4 October 1994 20:09:48 | Sega Mega Drive | Role-Playing | - |
| Beyond Zero Tolerance (Jul 14, 1995 prototype) | 14 July 1995 | Sega Mega Drive | First-person shooter | ✓ |
| Beyond Zero Tolerance (Jun 23, 1995 prototype) | 23 June 1995 20:30:40 | Sega Mega Drive | First-person shooter | ✓ |
| Beyond: Two Souls (Aug 20, 2013 prototype) | 20 August 2013 05:24:00 | PlayStation 3 | Interactive drama, action-adventure | - |
| Beyond: Two Souls (Jun 9, 2013 prototype) | 9 June 2013 15:57:05 | PlayStation 3 | Interactive drama, action-adventure | - |
| Beyond: Two Souls (Nov 6, 2012 prototype) | 6 November 2012 19:44:26 | PlayStation 3 | Interactive drama, action-adventure | - |
| Big Air (Jun 15, 1998 prototype) | 15 June 1998 13:37:16 | PlayStation | Snowboarding | - |
| Big Bang Pro Wrestling (Prototype) | | Neo Geo Pocket Color | Wrestling | - |
| Big Bang Show (May 30, 1994) | 30 May 1994 | Philips CD-i | FMV | ✓ |
| Big Bird's Egg Catch (Dec 8, 1982 prototype) | 8 December 1982 | Atari 2600 | Educational | - |
| Big Bird's Egg Catch (May 17, 1983 prototype) | 17 May 1983 | Atari 2600 | Educational | - |
| Big Bird's Egg Catch (May 2, 1983 prototype) | 2 May 1983 | Atari 2600 | Educational | - |
| Big Brain Academy (JP Kiosk demo) | | Nintendo DS | Action, Educational, Minigame Collection, Puzzle Franchises: Touch! Generations, Big Brain Academy | - |
| Big Brother (Dec 24, 1998 prototype) | 24 December 1998 00:08:42 | PC | Action-adventure | ✓ |
| Big Buck Hunter Arcade (prototype 1) | | PC | | - |
| Big Buck Hunter Arcade (prototype 2) | | PC | | - |
| Big Bumpin' (Sep 15, 2006 prototype) | 15 September 2006 18:07:11 | Xbox | Racing | - |
| Big Hero 6: Battle in the Bay (Apr 24, 2014 prototype) | 25 April 2014 01:35:07 | Nintendo 3DS | Platformer | - |
| Big Mutha Truckers (Apr 29, 2003 prototype) | 29 April 2003 11:53:31 | Xbox | Racing | - |
| Big Sky Trooper (May 23, 1995 prototype) | 23 May 1995 | SNES | Action | - |
| Big Sky Trooper (SNEAKERS prototype) | | SNES | Action | - |
| Big Top Circus (Prototype) | | Nintendo Wii | | ✓ |
| Bill's Tomato Game (Prototype) | | Sega Mega Drive | Puzzle | ✓ |
| Billiard Club (prototype) | | Game Boy Color | Billiards | ✓ |
| Bing Bing! Bingo (prototype) | | SNES | Bingo | - |
| Bio Force Ape (Prototype) | | NES | Action | ✓ |
| Bio Force Ape (US Prototype) | | NES | Action | ✓ |
| Bio-Hazard Battle (Prototype) | | Sega Mega Drive | Shooting | - |
| BioShock (Aug 16, 2007 demo) | 16 August 2007 18:28:42 | PC | First-Person Shooter, Action-Adventure | - |
| BioShock (Aug 29, 2008 demo) | 29 August 2008 | PlayStation 3 | First-Person Shooter, Action-Adventure | - |
| BioShock (Dec 4, 2008 demo) | 4 December 2008 | PlayStation 3 | First-Person Shooter, Action-Adventure | - |
| BioShock (Jul 5, 2007 demo) | 5 July 2007 | Xbox 360 | First-Person Shooter, Action-Adventure | - |
| BioShock (Sep 5, 2008 demo) | 5 September 2008 | PlayStation 3 | First-Person Shooter, Action-Adventure | - |
| BioShock 2 (Dec 16, 2009 prototype) | 16 December 2009 | Xbox 360 | First-person shooter | - |
| BioShock 2 (Nov 30, 2009 prototype) | 30 November 2009 | Xbox 360 | First-person shooter | - |
| BioShock 3D (Aug 28, 2009 prototype) | 28 August 2009 | Brew | | - |
| BioShock 3D (May 26, 2009 prototype) | 26 May 2009 | Brew | | - |
| BioShock 3D Part 2 (Aug 25, 2009 prototype) | 25 August 2009 | Brew | | ✓ |
| BioShock Infinite (Dec 26, 2012 prototype) | 26 December 2012 15:19:38 | PC | First-Person Shooter, Action-Adventure | - |
| BioShock Infinite (Feb 26, 2013 prototype) | 26 February 2013 | PC | First-Person Shooter, Action-Adventure | - |
| BioShock Infinite (Nov 10, 2012 prototype) | 10 November 2012 | PC | First-Person Shooter, Action-Adventure | - |
| Biohazard (Aug 4, 1995 prototype) | 4 August 1995 18:31:10 | PlayStation | Survival Horror | - |
| Biohazard (Jan 31, 1996 prototype) | 31 January 1996 | PlayStation | Survival Horror | - |
| Biohazard (Oct 4, 1995 prototype) | 4 October 1995 13:03:42 | PlayStation | Survival Horror | - |
| Biohazard 2 (Aug 6, 1997 demo) | 6 August 1997 16:00:00 | PlayStation | Survival Horror | - |
| Biohazard 2 (Nov 6, 1996 prototype) | 6 November 1996 13:10:10 | PlayStation | Survival Horror | - |
| Biohazard 2 (Oct 31, 1997 prototype) | 31 October 1997 10:12:52 | PlayStation | Survival Horror | - |
| Biohazard 2 Beta 2 (prototype) | 31 October 1997 | PlayStation | | - |
| Bionic Breakthrough (Jun 22, 1984 prototype) | | Atari 2600 | | ✓ |
| Bionic Breakthrough (prototype) | | Atari 2600 | | ✓ |
| Bionic Commando (Oct 6, 2008 prototype) | 6 October 2008 | Xbox 360 | Action-adventure, third-person shooter | - |
| Bionic Commando (Prototype) | | NES | Action | - |
| Bionic Commando Rearmed 2 (Oct 27, 2010 prototype) | 27 October 2010 | Xbox 360 | Action & Adventure | - |
| Bionic Commando: Rearmed (Jun 19, 2008 prototype) | 19 June 2008 | Xbox 360 | Platformer | - |
| Bionicle 2 (Jan 21, 2004 Tech Demo) | 21 January 2004 | Xbox | Action | ✓ |
| Bionicle 2: City of Legends (Dec 9, 2003 tech demo) | 9 December 2003 05:26:28 | PlayStation 2 | Action | ✓ |
| Bionicle 2: City of Legends (Jan 16, 2004 tech demo) | 16 January 2004 00:11:10 | PlayStation 2 | Action | ✓ |
| Bionicle 2: City of Legends (Jan 19, 2004 tech demo) | 19 January 2004 07:50:38 | PlayStation 2 | Action | ✓ |
| Bionicle Heroes (Oct 11, 2006 prototype) | 11 October 2006 19:05:54 | Xbox 360 | Third Person Shooter | - |
| Bionicle Heroes (Oct 16, 2006 prototype) | 16 October 2006 15:10:23 | Xbox 360 | Third Person Shooter | - |
| Bionicle Heroes (Sep 28, 2006 prototype) | 28 September 2006 23:36:23 | PlayStation 2 | Shooter | - |
| Bionicle Heroes (Sep 4, 2006 prototype) | 4 September 2006 01:56:07 | PlayStation 2 | Shooter | - |
| Birds of Steel (Oct 9, 2011 prototype) | 9 October 2011 09:35:00 | PlayStation 3 | Flight Simulator | - |
| BitGame (May 11, 2011 prototype) | 11 May 2011 23:55:31 | Xbox 360 | Misc | - |
| Black & Bruised (Oct 18, 2002 prototype) | 18 October 2002 02:20:06 | PlayStation 2 | Boxing - Martial Arts | - |
| Black & White 2: Battle of the Gods (Feb 17, 2007 demo) | 17 February 2007 15:07:20 | PC | Strategy, Simulation | - |
| Black & White: Creatures (Dec 9, 2005 prototype) | 9 December 2005 10:29:55 | PlayStation Portable | Virtual pet | ✓ |
| Black & White: Creatures (May 13, 2005 Nintendo DS prototype) | 13 May 2005 19:33:08 | Nintendo DS | Virtual pet/Rhythm | ✓ |
| Black & White: Creatures (Nintendo DS prototype) | | Nintendo DS | Virtual pet/Rhythm | ✓ |
| Black (Aug 16, 2005 prototype) | 16 August 2005 00:40:55 | PlayStation 2 | First-person shooter | - |
| Black (Dec 5, 2005 demo) | 5 December 2005 08:35:58 | PlayStation 2 | First-person shooter | - |
| Black (Dec 5, 2005 prototype) | 5 December 2005 00:56:32 | Xbox | First-person shooter | - |
| Black (Nov 25, 2005 demo) | 25 November 2005 07:25:24 | PlayStation 2 | First-person shooter | - |
| Black 2 (Feb 13, 2007 prototype) | 13 February 2007 11:08:07 | Xbox 360 | First-person shooter | ✓ |
| Black 2 (Jun 29, 2006 prototype) | 29 June 2006 15:38:39 | Xbox 360 | First-person shooter | ✓ |
| Black 9 (Jan 13, 2004 prototype) | 13 January 2004 | Xbox | | ✓ |
| Black Dawn (Aug 2, 1996 prototype) | 2 August 1996 15:42:32 | PlayStation | Flight Combat Simulator | - |
| Black Dawn (Jul 15, 1996 prototype) | 15 July 1996 20:12:00 | PlayStation | Flight Combat Simulator | - |
| Black Hole Assault (Oct 1, 1992 prototype) | 1 October 1992 18:37:04 | Sega CD | Action | - |
| Black Ice / White Noise (Prototype) | | Atari Jaguar CD | Action | ✓ |
| Black Knight Sword (Feb 28, 2012 Prototype) | 28 February 2012 | Xbox 360 | Action Adventure | - |
| Black Knight Sword (Feb 29, 2012 prototype) | 29 February 2012 | Xbox 360 | Action | - |
| Black Mesa (May 8, 2006 prototype - Alpha 5) | 8 May 2006 00:01:54 | PC | First-Person Shooter | - |
| Black Sigil: Blade of the Exiled (Feb 10, 2007 prototype) | 10 February 2007 08:23:48 | Game Boy Advance | Role-playing game | ✓ |
| BlackFire (Jul 6, 1995 prototype) | 6 July 1995 16:23:19 | Sega Saturn | Flight Combat Simulator | - |
| BlackSite: Area 51 (Apr 30, 2007 demo) | 30 April 2007 | Xbox 360 | FPS | - |
| BlackSite: Area 51 (Aug 15, 2007 prototype) | 15 August 2007 22:40:01 | Xbox 360 | FPS | - |
| BlackSite: Area 51 (Nov 8, 2007 demo) | 8 November 2007 | Xbox 360 | FPS | - |
| BlackThorne (CES prototype) | | SNES | Action | - |
| BlackThorne (Incomplete Prototype) | | Sega 32X | Action | - |
| Blackwater (Aug 17, 2011 prototype) | 17 August 2011 | Xbox 360 | First-person shooter | - |
| Blade Eagle (Prototype) | | Sega Master System | Shooter | - |
| Blade Eagle 3-D (Prototype) | | Sega Master System | Shooter | - |
| Blade Force (Aug 8, 1995 prototype) | 8 August 1995 | 3DO | Shooter | - |
| Blade Force (Jul 14, 1995 prototype) | 14 July 1995 | 3DO | Shooter | - |
| Blade II (Jul 4, 2002 prototype) | 4 July 2002 00:03:51 | Xbox | Beat-Em-Up | - |
| Blade Kitten (Jul 7, 2010 prototype) | 7 July 2010 | Xbox 360 | Platformer, Action-Adventure | - |
| Blade Kitten (Jun 24, 2010 prototype) | 24 June 2010 | Xbox 360 | Adventure | - |
| Blade Warrior (Prototype) | | Game Boy | Action | ✓ |
| Blades of Time (prototype) | 8 October 2011 | PlayStation 3 | Action-adventure, hack and slash | - |
| Bladestorm: The Hundred Years' War (Sep 6, 2007 prototype) | 6 September 2007 | Xbox 360 | RTT | - |
| Blast 'Em Bunnies (Dec 15, 2015 prototype) | 15 December 2015 | PlayStation Vita | Shooter | - |
| Blast Chamber (Jul 10, 1996 prototype) | 10 July 1996 19:41:34 | PlayStation | Action | - |
| Blaster Master (May 20, 1988 prototype) | 20 May 1988 | NES | Action | - |
| Blaster Master 2 (Apr 15, 1993 prototype) | | Sega Mega Drive | Action | - |
| Blaster Master 2 (Prototype) | | Sega Mega Drive | Action | - |
| Blaster Master Boy (Prototype) | | Game Boy | Action | - |
| Blasto (Mar 5, 1998 prototype) | 5 March 1998 11:31:48 | PlayStation | Third Person Shooter | - |
| BlazBlue: Calamity Trigger (Apr 23, 2009 prototype) | 23 April 2009 | Xbox 360 | Fighting | - |
| BlazBlue: Continuum Shift II (Feb 28, 2011 prototype) | 28 February 2011 | PlayStation Portable | Fighting | - |
| Blazing Angels 2: Secret Missions of WWII (Jul 2, 2007 prototype) | 2 July 2007 14:07:58 | Xbox 360 | Flight Combat Simulator | - |
| Blazing Angels: Squadrons of WWII (Dec 22, 2005 prototype) | 22 December 2005 18:04:58 | Xbox 360 | Flight Combat Simulator | - |
| Blazing Angels: Squadrons of WWII (Feb 16, 2006 prototype) | 16 February 2006 | Xbox 360 | Flight Combat Simulator | - |
| Blazing Birds (Jun 29, 2008 prototype) | 29 June 2008 | Xbox 360 | Sports | - |
| Bleach: Dark Souls (prototype) | | Nintendo DS | Fighting | - |
| Bleemcast! (prototype) | | Dreamcast | Application | ✓ |
| Blinx the Time Sweeper (Aug 27, 2002 prototype) | 27 August 2002 | Xbox | Action, Puzzle, Platformer | - |
| Blinx: The Time Sweeper (Aug 12, 2002 prototype) | 12 August 2002 05:44:54 | Xbox | Platform | - |
| Bliss Island (Jan 7, 2008 prototype) | 7 January 2008 | Xbox 360 | Action, Strategy | - |
| Blitz: The League (Aug 26, 2005 prototype) | 26 August 2005 21:06:20 | Xbox | Sports - Football | - |
| Blitz: The League (Sep 8, 2005 prototype) | 8 September 2005 00:30:19 | PlayStation 2 | Sports - Football | - |
| Block Out (Prototype) | | NES | Puzzle | ✓ |
| Bloctrix (Aug 26, 1998 prototype) | 26 August 1998 15:53:04 | PC | Puzzle | ✓ |
| Bloctrix (Jul 16, 1998 prototype) | 16 July 1998 | PC | Puzzle | ✓ |
| Bloctrix (Nov 24, 1998 prototype) | 24 November 1998 10:05:28 | PC | Puzzle | ✓ |
| Bloctrix (Nov 5, 1998 prototype) | 5 November 1998 09:27:38 | PC | Puzzle | ✓ |
| Bloctrix (Oct 14, 1998 prototype) | 14 October 1998 11:41:06 | PC | Puzzle | ✓ |
| Bloctrix (Oct 15, 1998 13.00 prototype) | 15 October 1998 13:00:20 | PC | Puzzle | ✓ |
| Bloctrix (Oct 15, 1998 16.18 prototype) | 15 October 1998 16:18:59 | PC | Puzzle | ✓ |
| Bloctrix (Oct 25, 1998 prototype) | 25 October 1998 11:56:34 | PC | Puzzle | ✓ |
| Bloctrix (Oct 28, 1998 prototype) | 28 October 1998 10:42:09 | PC | Puzzle | ✓ |
| Bloctrix (Oct 29, 1998 prototype) | 29 October 1998 10:23:48 | PC | Puzzle | ✓ |
| Bloctrix (Oct 5, 1998 prototype) | 5 October 1998 14:01:50 | PC | Puzzle | ✓ |
| Bloctrix (Sep 10, 1998 prototype) | 10 September 1998 15:55:25 | PC | Puzzle | ✓ |
| Bloctrix (Sep 18, 1998 prototype) | 18 September 1998 14:13:33 | PC | Puzzle | ✓ |
| Bloctrix (Sep 21, 1998 prototype) | 21 September 1998 12:47:51 | PC | Puzzle | ✓ |
| Bloctrix (Sep 22, 1998 prototype) | 22 September 1998 16:22:04 | PC | Puzzle | ✓ |
| Bloctrix (Sep 24, 1998 prototype) | 24 September 1998 12:14:21 | PC | Puzzle | ✓ |
| Bloctrix (Sep 28, 1998 prototype) | 28 September 1998 15:02:34 | PC | Puzzle | ✓ |
| Bloctrix (Sep 8, 1998 prototype) | 8 September 1998 13:20:49 | PC | Puzzle | ✓ |
| Bloctrix (Sep 9, 1998 prototype) | 9 September 1998 13:18:05 | PC | Puzzle | ✓ |
| Blokus (EN A prototype) | | Nintendo DSi | Trivia/Board Game | ✓ |
| Blokus (EN B prototype) | | Nintendo DSi | Trivia/Board Game | - |
| Blokus (EN C prototype) | | Nintendo DSi | Trivia/Board Game | ✓ |
| Blokus (EN D prototype) | | Nintendo DSi | Trivia/Board Game | ✓ |
| Blood (Feb 17, 1996 prototype) | 17 February 1996 | PC | Shooter | - |
| Blood (Jan 2, 1997 demo) | 2 January 1997 | PC | Shooter | - |
| Blood (Jul 22, 1996 prototype) | 22 July 1996 | PC | | - |
| Blood Knights (Feb 13, 2013 prototype) | 13 February 2013 | Xbox 360 | RPG | - |
| Blood Lines (Jun 21, 1998 prototype) | 21 June 1998 | PlayStation | Action | - |
| Blood Lines (May 12, 1997 prototype) | 12 May 1997 00:27:38 | PlayStation | Action | - |
| Blood Omen: Legacy of Kain (Jul 10, 1997 prototype) | 10 July 1997 | PC | Action-adventure | - |
| Blood Omen: Legacy of Kain (Jul 12, 1996 prototype) | 12 July 1996 | PlayStation | Action-adventure | - |
| Blood Omen: Legacy of Kain (Jul 15, 1996 prototype) | 15 July 1996 | PlayStation | Action-adventure | - |
| Blood Omen: Legacy of Kain (Mar 10, 1997 demo) | 10 March 1997 | PC | Action-adventure | - |
| Blood Omen: Legacy of Kain (Sep 16, 1996 prototype) | 16 September 1996 | PlayStation | Action-adventure | - |
| Blood Wake (Aug 18, 2001 prototype) | 18 August 2001 00:01:18 | Xbox | Vehicular Combat | - |
| Blood Wake (Jan 9, 2002 prototype) | 9 January 2002 | Xbox | Vehicular Combat | - |
| BloodRayne (Aug 5, 2002 prototype) | 5 August 2002 15:58:51 | Xbox | Hack-And-Slash | - |
| BloodRayne (Oct 22, 2002 prototype) | 22 October 2002 | PC | Action | - |
| BloodRayne 2 (Sep 16, 2004 prototype) | 16 September 2004 13:09:10 | PlayStation 2 | Action | - |
| BloodRayne: Betrayal (Jul 21, 2011 prototype) | 21 July 2011 | Xbox 360 | Action | - |
| Bloodborne (Alpha Network Test/TGS Build) | October 2014 | PlayStation 4 | Action role-playing | - |
| Bloodline (prototype) | | Amiga | Action | ✓ |
| Bloodshot (Mar 9, 1995 prototype) | 9 March 1995 11:56:18 | Sega CD | FPS | ✓ |
| Bloody Good Time (Jul 25, 2010 prototype) | 25 July 2010 | Xbox 360 | First Person Shooter | - |
| Bloody Roar 4 (Aug 30, 2003 prototype) | 30 August 2003 23:09:55 | PlayStation 2 | Fighting | - |
| Bloody Roar 4 (Jul 15, 2003 prototype) | 15 July 2003 17:42:38 | PlayStation 2 | Fighting | - |
| Bloody Roar 4 (Sep 9, 2003 prototype) | 9 September 2003 | PlayStation 2 | Fighting | - |
| Bloody Roar: Primal Fury (Jan 8, 2002 prototype) | 8 January 2002 | Nintendo GameCube | Fighting | - |
| Blue Angelo: Angels from the Shrine (Early prototype) | | Game Boy Advance | Action | ✓ |
| Blue Angelo: Angels from the Shrine (Late prototype) | | Game Boy Advance | Action | ✓ |
| Blue Dragon (May 18, 2007 prototype) | 18 May 2007 00:00:00 | Xbox 360 | Role Playing | - |
| Blue Dragon: Awakened Shadow (prototype) | | Nintendo DS | Action, Role-Playing | - |
| Blue Lightning Tour 1 (Prototype) | | Atari Jaguar CD | Action | - |
| Blue Lightning Tour 2 (Prototype) | | Atari Jaguar CD | Action | - |
| Blue Lightning Tour 3 (Prototype) | | Atari Jaguar CD | Action | - |
| Blue Lightning Tour 4 (Apr 10, 1995 prototype) | 10 April 1995 | Atari Jaguar CD | Shooter | ✓ |
| Blue Lightning Tour 5 (Apr 7, 1995 prototype) | 7 April 1995 | Atari Jaguar CD | Shooter | ✓ |
| Blue Lightning Tour 6 (Apr 11, 1995 prototype) | 11 April 1995 | Atari Jaguar CD | Shooter | ✓ |
| Blueprint (prototype A) | | Atari 2600 | | - |
| Blueprint (prototype B) | | Atari 2600 | | - |
| Blues Brothers 2000 (Jan 15, 2000 prototype) | 15 January 2000 | Nintendo 64 | Action | - |
| Blues Brothers 2000 (Jun 30, 2000 prototype) | 30 June 2000 | Nintendo 64 | Action | - |
| Blur (Feb 8, 2010 Multiplayer prototype) | 8 February 2010 | Xbox 360 | Racing | - |
| Blur (Mar 11, 2010 Title Update 2 prototype) | 11 March 2010 | Xbox 360 | Sports, Driving/Racing, Vehicular Combat | - |
| Blur 2 (Aug 31, 2010 prototype) | 31 August 2010 00:00:00 | Xbox 360 | Racing | ✓ |
| Blur 2 (Nov 10, 2010 prototype) | 10 November 2010 15:17:25 | Xbox 360 | Racing | ✓ |
| Blur 2 (Nov 4, 2010 prototype) | 4 November 2010 10:39:22 | Xbox 360 | Racing | ✓ |
| Blur 2 (Nov 9, 2010 prototype) | 9 November 2010 01:24:11 | Xbox 360 | Racing | ✓ |
| Bobby's World (European Game Boy prototype) | | Game Boy | Platformer | ✓ |
| Bobby's World (Prototype) | | SNES | Action | ✓ |
| Bobby's World (US Game Boy prototype) | | Game Boy | Platformer | ✓ |
| Body Count (Feb 28, 1994 prototype U) | 28 February 1994 11:23:52 | Sega Mega Drive | Shooter | ✓ |
| Body Count (Feb 8, 1994 prototype) | 28 February 1994 11:23:52 | Sega Mega Drive | Shooter | ✓ |
| Body Count (Jan 27, 1994 prototype) | 27 January 1994 16:33:54 | Sega Mega Drive | Shooter | ✓ |
| Body Count (Mar 3, 1994 prototype) | 3 March 1994 14:12:32 | Sega Mega Drive | Shooter | ✓ |
| Body Count (Mar 8, 1994 prototype A) | 8 March 1994 13:31:38 | Sega Mega Drive | Shooter | ✓ |
| Body Count (Mar 8, 1994 prototype) | 8 March 1994 13:31:38 | Sega Mega Drive | Shooter | ✓ |
| Body Count (Mar 9, 1994 prototype) | 9 March 1994 11:09:32 | Sega Mega Drive | Shooter | ✓ |
| Bodycount (Jul 6, 2011 prototype) | 6 July 2011 | PlayStation 3 | First-person shooter | - |
| Bodycount (Jul 7, 2011 prototype) | 7 July 2011 | PlayStation 3 | First-person shooter | - |
| Bodycount (Jul 9, 2011 prototype) | 9 July 2011 | Xbox 360 | First-person shooter | - |
| Boggle (Aug 7, 1978 prototype) | | Atari 2600 | | ✓ |
| Bokura no Telebi Game Kentei: Pikotto! Udedameshi (Feb 22, 2008 prototype) | 22 February 2008 | Nintendo DS | | - |
| Bomb Jack (Prototype A) | | Game Boy | Action | - |
| Bomb Jack (Prototype B) | | Game Boy | Action | - |
| Bomberman (May 27, 2004 prototype) | 27 May 2004 | N-Gage | Action, Maze | - |
| Bomberman Fantasy Race (Aug 21, 1998 prototype) | 21 August 1998 11:17:12 | PlayStation | Racing | - |
| Bomberman II (Prototype) | | NES | Action | - |
| Bomberman Land (Nov 6, 2007 prototype) | 6 November 2007 | Nintendo Wii | Action | - |
| Bomberman Live (Jun 18, 2007 prototype) | 18 June 2007 | Xbox 360 | Action | - |
| Bomberman Live: Blastfest (May 27, 2010 prototype) | 27 May 2010 | Xbox 360 | | - |
| Bomberman Online (Feb 7, 2001 prototype) | 7 February 2001 15:15:32 | Dreamcast | Multiplayer | - |
| Bomberman Online (Sep 8, 2001 prototype) | 8 September 2001 09:06:30 | Dreamcast | Multiplayer | - |
| Bomberman Selection (prototype 1) | | Game Boy Color | Compilation | - |
| Bomberman Selection (prototype 2) | | Game Boy Color | Compilation | - |
| Bombing Busters (Oct 16, 2015 prototype) | 16 October 2015 | PlayStation Vita | Action | - |
| Bonk's Adventure (Prototype) | | Game Boy | Adventure | - |
| Bonk: Brink of Extinction (Aug 5, 2010 prototype) | 5 August 2010 01:33:57 | Xbox 360 | Platformer | ✓ |
| Bonk: Brink of Extinction (DLC 1 prototype) | | Xbox 360 | Platformer | ✓ |
| Bonk: Brink of Extinction (DLC 2 prototype) | | Xbox 360 | Platformer | ✓ |
| Bonk: Brink of Extinction (DLC 3 prototype) | | Xbox 360 | Platformer | ✓ |
| Bonk: Brink of Extinction (Dec 10, 2010 prototype) | 10 December 2010 00:24:47 | Xbox 360 | Platformer | ✓ |
| Bonk: Brink of Extinction (May 13, 2010 prototype) | 13 May 2010 03:27:14 | Xbox 360 | Platformer | ✓ |
| Bonkers (Aug 25, 1994 prototype) | 25 August 1994 06:47:02 | Sega Mega Drive | Action Platformer | - |
| Bonkers (Aug 29, 1994 prototype) | 29 August 1994 02:16:08 | Sega Mega Drive | Action Platformer | - |
| Bonkers (Aug 4, 1994 prototype) | 4 August 1994 11:46:28 | Sega Mega Drive | Action Platformer | - |
| Bonkers (Mar 28, 1994 prototype) | 5 April 1994 07:00:02 | Sega Mega Drive | Action Platformer | - |
| Bonkers (May 3, 1994 prototype) | 6 May 1994 19:11:48 | Sega Mega Drive | Action Platformer | - |
| Bonkers Wax Up! (Dec 11, 1994 prototype) | 11 December 1994 19:45:16 | Game Gear | Action Platformer | - |
| Bonkers Wax Up! (Dec 12, 1994 prototype D) | 12 December 1994 18:40:02 | Game Gear | Action Platformer | - |
| Bonkers Wax Up! (Dec 3, 1994 prototype) | 3 December 1994 22:59:16 | Game Gear | Action Platformer | - |
| Bonkers Wax Up! (Dec 5, 1994 prototype) | 5 December 1994 09:00:36 | Game Gear | Action Platformer | - |
| Bonkers Wax Up! (Dec 7, 1994 prototype C) | 7 December 1994 23:52:50 | Game Gear | Action Platformer | - |
| Bonkers Wax Up! (Dec 8, 1994 prototype B) | 8 December 1994 18:49:32 | Game Gear | Action Platformer | - |
| Bonkers Wax Up! (Dec 8, 1994 prototype C) | 8 December 1994 21:45:34 | Game Gear | Action Platformer | - |
| Bonkers Wax Up! (Nov 15, 1994 prototype) | 15 November 1994 09:47:12 | Game Gear | Action Platformer | - |
| Bonkers Wax Up! (Nov 21, 1994 prototype) | 21 November 1994 09:07:40 | Game Gear | Action Platformer | - |
| Bonkers Wax Up! (Nov 23, 1994 prototype) | 23 November 1994 14:31:38 | Game Gear | Action Platformer | - |
| Bonkers Wax Up! (Nov 26, 1994 prototype) | 26 November 1994 12:19:56 | Game Gear | Action Platformer | - |
| Bonkers Wax Up! (Nov 29, 1994 prototype) | 29 November 1994 21:17:10 | Game Gear | Action Platformer | - |
| Bonkers Wax Up! (Oct 31, 1994 prototype) | 31 October 1994 16:42:22 | Game Gear | Action Platformer | - |
| Boogerman: A Pick and Flick Adventure (Apr, 1996 Prototype) | April 1996 | NES | Platform Game | - |
| Boogie (Jul 2, 2007 prototype) | 2 July 2007 | Nintendo Wii | Rhythm | - |
| Boogie (Jun 26, 2007 prototype) | 26 June 2007 | Nintendo Wii | Rhythm | - |
| Boogie Bunnies (Nov 16, 2007 prototype) | 16 November 2007 | Xbox 360 | Puzzle | - |
| Boogie Bunnies (Nov 20, 2007 prototype) | 20 November 2007 | Xbox 360 | Puzzle | - |
| Boom Boom Rocket (DLC Guitar Pack A prototype) | | Xbox 360 | Rhythm | - |
| Boom Boom Rocket (DLC Guitar Pack B prototype) | | Xbox 360 | Rhythm | - |
| Boom Boom Rocket (Jul 19, 2007 prototype) | 19 July 2007 | Xbox 360 | Rhythm | - |
| Boom Boom Rocket (Jun 17, 2007 prototype) | 17 June 2007 | Xbox 360 | Rhythm | - |
| Boom Boom Rocket (Mar 23, 2007 prototype) | 23 March 2007 | Xbox 360 | Rhythm | - |
| Borderlands (Aug 14, 2009 prototype) | 14 August 2009 | Xbox 360 | Action role-playing, First-person shooter | - |
| Borderlands (Aug 27, 2009 Prototype) | 27 August 2009 19:48:02 | Xbox 360 | Action role-playing, First-person shooter | - |
| Borderlands (Aug 31, 2009 prototype) | 31 August 2009 | Xbox 360 | Action role-playing, First-person shooter | - |
| Borderlands (Patch Data prototype) | | Xbox 360 | Action role-playing, First-person shooter | - |
| Borderlands (Sep 30, 2010 Patch Data prototype) | 30 September 2010 | PlayStation 3 | Action role-playing, First-person shooter | - |
| Borderlands Online (Jan 15, 2015 prototype) | 15 January 2015 | PC | | ✓ |
| Borderlands: The Pre-Sequel! (Oct 13, 2014 Patch Data prototype) | 13 October 2014 16:57:20 | PC | Role-Playing, First-Person Shooter | - |
| Borderlands: The Pre-Sequel! (Oct 14, 2014 02.07 Patch Data prototype) | 14 October 2014 02:07:39 | PC | Role-Playing, First-Person Shooter | - |
| Borderlands: The Pre-Sequel! (Oct 14, 2014 22.43 Patch Data prototype) | 14 October 2014 22:43:15 | PC | Role-Playing, First-Person Shooter | - |
| Bottom of the 9th '97 (Apr 18, 1997 prototype) | 18 April 1997 07:42:08 | PlayStation | Sports - Baseball | - |
| Bottom of the 9th '97 (Jul 25, 1997 prototype) | 25 July 1997 00:00:00 | PlayStation | Sports - Baseball | - |
| Bottom of the 9th (Jul 10, 1996 prototype) | 10 July 1996 15:49:46 | Sega Saturn | Sports - Baseball | - |
| Bounced (Lot Check prototype) | | Game Boy Color | Puzzle | ✓ |
| Bouncin' Baby Bunnies (prototype) | | Atari 2600 | | ✓ |
| Bounty Arms (Jan 30, 1995 demo) | 30 January 1995 | PlayStation | Action | ✓ |
| Bounty Sword (May 16, 1995 prototype) | 16 May 1995 | SNES | Role Playing | - |
| Boxing Legends of the Ring (prototype) | | SNES | Sports - Boxing | - |
| Braid (Apr 21, 2008 prototype) | 21 April 2008 | Xbox 360 | Action | - |
| Braid (Jun 24, 2008 prototype) | 24 June 2008 | Xbox 360 | Puzzle, Platformer | - |
| Brain Challenge (Dec 7, 2007 prototype) | 7 December 2007 | Xbox 360 | Edutainment | - |
| Brain Dead 13 (Jun 11, 1996 prototype) | 11 June 1996 | Philips CD-i | FMV | ✓ |
| Brain Pain (Jan 30, 1983 prototype) | 30 January 1983 | Commodore VIC-20 | Puzzle | - |
| Bram Stoker's Dracula (SNES prototype) | | SNES | Platformer | - |
| Brave Fencer Musashi (Aug 31, 1998 prototype) | 31 August 1998 12:56:08 | PlayStation | Action RPG | - |
| Brave Fencer Musashi (Sep 8, 1998 prototype) | 8 September 1998 12:00:00 | PlayStation | Action RPG | - |
| Brave: A Warrior's Tale (Apr 3, 2009 prototype) | 3 April 2009 | Nintendo Wii | Action-adventure | - |
| Brave: A Warrior's Tale (Feb 19, 2009 prototype) | 19 February 2009 | Xbox 360 | Action-adventure | - |
| Brave: A Warrior's Tale (Sep 30, 2008 prototype) | 30 September 2008 | Xbox 360 | Action-adventure | - |
| Brave: The Search for Spirit Dancer (May 9, 2005 prototype) | 9 May 2005 21:43:27 | PlayStation 2 | Platforming | - |
| Brawl (Jul 10, 2011 prototype) | 10 July 2011 | PlayStation 3 | | ✓ |
| Breach (May 12, 2010 prototype) | 12 May 2010 | Xbox 360 | First Person Tactical | - |
| Breach (Prototype) | | Sega Mega Drive | Action | ✓ |
| BreakThru! (Game Gear Prototype) | | Game Gear | Puzzle | ✓ |
| Breakdown (Dec 14, 2003 prototype) | 14 December 2003 07:51:37 | Xbox | First-Person Shooter, Action-Adventure | - |
| Breakneck (Feb 5, 1998 prototype) | 5 February 1998 01:01:06 | PlayStation | Racing | ✓ |
| Breakout 2000 (Prototype) | | Atari Jaguar | Puzzle | - |
| Breath of Fire II (Prototype) | | SNES | RPG | - |
| Breath of Fire IV (May 1, 2000 E3 demo) | 1 May 2000 | PlayStation | Role-playing | - |
| Breath of Fire V: Dragon Quarter (Oct 24, 2002 prototype) | 24 October 2002 10:33:54 | PlayStation 2 | Role-playing | - |
| Brett Hull Hockey (Prototype) | | Atari Jaguar | Sports | ✓ |
| Brett Hull NHL Hockey (Prototype) | | Atari Jaguar CD | Sports - Hockey | - |
| Brickcraft (Jun 28, 2012 prototype) | 28 June 2012 | PC | | ✓ |
| Brink (Mar 2, 2011 Prototype) | 2 March 2011 03:22:51 | Xbox 360 | First-person shooter | - |
| Broken Helix (Apr 15, 1997 prototype) | 15 April 1997 22:44:24 | PlayStation | Action Adventure | - |
| Broken Helix (Apr 22, 1997 prototype) | 22 April 1997 20:20:08 | PlayStation | Action Adventure | - |
| Broken Helix (Jan 13, 1997 prototype) | 13 January 1997 13:12:18 | PlayStation | Action Adventure | - |
| Broken Helix (Oct 7, 1996 prototype) | 7 October 1996 15:08:06 | PlayStation | Action Adventure | - |
| Broken Sword: The Shadow of the Templars (Oct 1, 1997 prototype) | 1 October 1997 16:27:10 | PlayStation | Action Adventure | - |
| Brothers in Arms: Earned in Blood (Aug 1, 2005 prototype) | 1 August 2005 | PlayStation 2 | First-person shooter | - |
| Brothers in Arms: Hell's Highway (May 09, 2008 Prototype) | 9 May 2008 02:54:45 | Xbox 360 | Strategy, First-Person Shooter | - |
| Brothers in Arms: Road to Hill 30 (Feb 12, 2005 prototype) | 12 February 2005 05:13:14 | PlayStation 2 | First-person shooter | - |
| Brothers in Arms: Road to Hill 30 (Feb 15, 2005 prototype) | 15 February 2005 16:29:48 | Xbox | First-person shooter | - |
| Brothers in Arms: Road to Hill 30 (Nov 18, 2004 prototype) | 18 November 2004 03:15:24 | Xbox | First-person shooter | - |
| Brothers: A Tale of Two Sons (Apr 2, 2013 prototype) | 2 April 2013 | Xbox 360 | Action Adventure | - |
| Brothers: A Tale of Two Sons (Apr 3, 2013 prototype) | 3 April 2013 | Xbox 360 | Action Adventure | - |
| Brunswick Pro Bowling (April 2nd, 2007 prototype) | 2 April 2007 14:42:46 | PlayStation 2 | Sports | - |
| Brutal: Paws of Fury (SNES prototype) | | SNES | Fighting | - |
| Brute Force (Apr 10, 2003 prototype) | 10 April 2003 00:02:08 | Xbox | Third-Person Shooter | - |
| Bubble Bobble (Dec 28, 1990 prototype) | 28 December 1990 | Game Boy | Arcade | - |
| Bubble Bobble (Game Gear Prototype) | | Game Gear | Puzzle | - |
| Bubble Bobble (NES Prototype) | | NES | Arcade | - |
| Bubble Bobble II (Dec 13, 1993 prototype) | 13 December 1993 15:50:00 | Arcade | Puzzle | - |
| Bubble Bobble II (Jan 30, 1997 prototype) | 30 January 1997 00:30:38 | PlayStation | Puzzle | ✓ |
| Bubble Bobble Neo! (Apr 9, 2009 prototype) | 9 April 2009 03:52:46 | Xbox 360 | Puzzle | - |
| Bubble Bobble Neo! (DLC prototype) | | Xbox 360 | | ✓ |
| Bubble Bobble Neo! (Jun 10, 2009 prototype) | 10 June 2009 | Xbox 360 | Puzzle, Platformer | - |
| Bubble Game (Apr 22, 2008 prototype) | 22 April 2008 | Xbox 360 | Puzzle | - |
| Bubble Ghost (Prototype) | | Game Boy | Puzzle | - |
| Bubble and Squeak (PAL prototype) | | Sega Mega Drive | Platform | - |
| Bubsy 3D (Mar 13, 1997 prototype) | 13 March 1997 11:15:18 | PlayStation | Platformer | - |
| Bubsy II (Jul 12, 1994 prototype) | 12 July 1994 | SNES | Platform | - |
| Bubsy in Claws Encounters of the Furred Kind (Prototype A) | | SNES | Platformer | - |
| Bubsy in Claws Encounters of the Furred Kind (Prototype B) | | SNES | Platformer | - |
| Bud Redhead: The Time Chase (Test version) | | PC | Platformer | - |
| Budokan - The Martial Spirit (Sep 25, 1990 prototype) | 25 September 1990 19:09:38 | Sega Mega Drive | Sports | - |
| Buffy the Vampire Slayer (Apr 2, 2002 prototype) | 2 April 2002 15:50:28 | Xbox | Beat-Em-Up | - |
| Buffy the Vampire Slayer (Jun 25, 2002 prototype) | 25 June 2002 23:49:50 | Xbox | Beat-Em-Up | - |
| Buffy the Vampire Slayer: Chaos Bleeds (Jul 4, 2003 prototype) | 4 July 2003 02:18:06 | PlayStation 2 | Beat-em-Up | - |
| Bug Bash (Mar 23, 2007 prototype) | 23 March 2007 | Xbox 360 | Arcade | ✓ |
| Bug Blasters: The Exterminators (Jan 23, 1995 prototype) | 23 January 1995 16:12:35 | Sega CD | Shoot-'em-Up | ✓ |
| Bug Too! (Aug 12, 1996 prototype) | 12 August 1996 15:53:30 | Sega Saturn | Platformer | - |
| Bug Too! (Nov 8, 1996 prototype) | 8 November 1996 01:14:22 | Sega Saturn | Platformer | - |
| Bug! (Jun 14, 1995 prototype) | 14 June 1995 15:48:47 | Sega Saturn | Platformer | - |
| Bugs Bunny & Taz: Time Busters (Aug 13, 2000 prototype) | 13 August 2000 22:42:56 | PlayStation | Platformer | - |
| Bugs Bunny & Taz: Time Busters (Aug 5, 2000 prototype) | 5 August 2000 19:26:12 | PlayStation | Platformer | - |
| Bugs Bunny (Aug 4, 1983 prototype) | 4 August 1983 | Atari 2600 | | ✓ |
| Bugs Bunny (Jun 20, 1983 prototype) | | Atari 2600 | | ✓ |
| Bugs Bunny: Private Eye (1991 prototype) | 1991 | Commodore 64 | Platform | ✓ |
| Bugs Bunny: Private Eye (Nov 26, 1992 prototype) | 26 November 1992 | Commodore 64 | Platform | ✓ |
| Build Database PS3 (A prototype) | | PlayStation 3 | | ✓ |
| Build Database PS3 (B prototype) | | PlayStation 3 | | ✓ |
| Bujingai: The Forsaken City (Nov 2, 2003 prototype) | 2 November 2003 | PlayStation 2 | | - |
| Buku Sudoku (DLC Puzzle Pack 1 A prototype) | | Xbox 360 | Puzzle | - |
| Buku Sudoku (DLC Puzzle Pack 1 B prototype) | | Xbox 360 | Puzzle | - |
| Buku Sudoku (DLC Puzzle Pack 2 prototype) | | Xbox 360 | Puzzle | - |
| Buku Sudoku (DLC Puzzle Pack 3 prototype) | | Xbox 360 | Puzzle | - |
| Buku Sudoku (DLC Puzzle Pack 4 prototype) | | Xbox 360 | Puzzle | - |
| Buku Sudoku (DLC Puzzle Pack 5 prototype) | | Xbox 360 | Puzzle | - |
| Buku Sudoku (Dec 27, 2007 prototype) | 27 December 2007 | Xbox 360 | Puzzle | - |
| Bullet Soul (Sep 14, 2010 prototype) | 14 September 2010 06:28:38 | Xbox 360 | Action | - |
| Bullet Witch (Jan 9, 2007 Prototype) | 9 January 2007 22:30:17 | Xbox 360 | Third Person Shooter | - |
| Bullet Witch (Nov 1, 2006 Prototype) | 1 November 2006 23:41:04 | Xbox 360 | Third Person Shooter | - |
| Bulletstorm (Apr 8, 2010 prototype) | 8 April 2010 23:36:38 | Xbox 360 | First Person Shooter | - |
| Bulletstorm (Aug 31, 2011 prototype) | 31 August 2011 | Xbox 360 | FPS | - |
| Bulletstorm (Dec 20, 2010 Prototype) | 20 December 2010 15:53:14 | Xbox 360 | FPS | - |
| Bulletstorm (May 15, 2010 prototype) | 15 May 2010 00:27:05 | Xbox 360 | First Person Shooter | - |
| Bully: Scholarship Edition (Debug Build) | | Nintendo Wii | Action-Adventure | - |
| Bully: Scholarship Edition (Jan 11, 2008 prototype) | 11 January 2008 | Nintendo Wii | Action-Adventure | - |
| Bully: Scholarship Edition (Late Build) | | Nintendo Wii | Action-Adventure | - |
| Bully: Scholarship Edition (Nov 13, 2007 prototype) | 13 November 2007 | Nintendo Wii | Action-Adventure | - |
| Bully: Scholarship Edition (Nov 16, 2007 prototype) | 16 November 2007 | Nintendo Wii | Action-Adventure | - |
| BurgerTime: World Tour (Jul 7, 2011 prototype) | 7 July 2011 | Xbox 360 | Action | - |
| Burn (Jan 12, 2012 prototype) | 12 January 2012 16:59:15 | Xbox 360 | Action | ✓ |
| Burn (Jan 24, 2012 prototype) | 24 January 2012 16:48:57 | Xbox 360 | Action | ✓ |
| Burn Out (Prototype) | 7 January 1995 | Atari Jaguar | Racing | - |
| Burning Fists: Force Striker (Dec 7, 1993 prototype) | 7 December 1993 09:12:08 | Sega CD | Action | ✓ |
| Burning Rangers (Dec 1, 1997 prototype) | | Sega Saturn | Action | - |
| Burning Rangers (Jan 3, 1998 prototype) | | Sega Saturn | Action | - |
| Burnout (Jan 3, 2002 prototype) | 3 January 2002 | PlayStation 2 | Racing | - |
| Burnout (Mar 21, 2002 prototype) | 21 March 2002 | Xbox | Racing | - |
| Burnout (Mar 6, 2002 prototype) | 6 March 2002 | Nintendo GameCube | Racing | - |
| Burnout (Mar 7, 2002 prototype) | 7 March 2002 19:56:49 | Xbox | Racing | - |
| Burnout (Oct 1, 2001 demo) | 1 October 2001 04:35:12 | PlayStation 2 | Racing | - |
| Burnout (September 12, 2001 prototype) | 12 September 2001 17:16:54 | PlayStation 2 | Racing | - |
| Burnout 2: Point of Impact (Aug 31, 2002 22.44.32 prototype) | 31 August 2002 22:44:32 | PlayStation 2 | Racing | - |
| Burnout 2: Point of Impact (Aug 31, 2002 prototype) | 31 August 2002 | PlayStation 2 | | - |
| Burnout 2: Point of Impact (Aug 5, 2002 prototype) | 5 August 2002 18:20:32 | PlayStation 2 | Racing | - |
| Burnout 2: Point of Impact (Aug 6, 2002 demo) | 6 August 2002 13:00:34 | PlayStation 2 | | - |
| Burnout 2: Point of Impact (Jul 27, 2002 prototype) | 27 July 2002 18:53:57 | PlayStation 2 | Racing | - |
| Burnout 2: Point of Impact (Jul 29, 2002 prototype) | | PlayStation 2 | Racing | - |
| Burnout 2: Point of Impact (Mar 28, 2003 prototype) | 28 March 2003 17:20:19 | Xbox | | - |
| Burnout 3: Takedown (Apr 28, 2004 demo) | 28 April 2004 05:19:46 | PlayStation 2 | | - |
| Burnout 3: Takedown (Jul 20, 2004 11.11 prototype) | 20 July 2004 11:11:00 | PlayStation 2 | Racing | - |
| Burnout 3: Takedown (Jul 20, 2004 11.14 prototype) | 20 July 2004 11:14:24 | PlayStation 2 | Racing | - |
| Burnout 3: Takedown (Jun 21, 2004 demo) | 21 June 2004 02:37:27 | PlayStation 2 | | - |
| Burnout 3: Takedown (Jun 22, 2004 prototype) | 22 June 2004 22:03:45 | Xbox | Racing, Action | - |
| Burnout 3: Takedown (Jun 8, 2004 prototype) | 8 June 2004 18:20:40 | PlayStation 2 | Racing | - |
| Burnout 3: Takedown (May 29, 2004 demo) | 29 May 2004 08:28:33 | PlayStation 2 | | - |
| Burnout Crash! (Mar 1, 2011 prototype) | 1 March 2011 | PlayStation 3 | Action | - |
| Burnout Crash! (Mar 10, 2011 prototype) | 10 March 2011 15:57:49 | Xbox 360 | Arcade | - |
| Burnout Crash! (May 12, 2011 prototype) | 12 May 2011 15:22:18 | Xbox 360 | Arcade | - |
| Burnout Dominator (Jan 31, 2007 prototype) | 31 January 2007 | PlayStation 2 | Racing | - |
| Burnout Paradise (ASIA demo) | | PlayStation 3 | Racing | - |
| Burnout Paradise (Dec 3, 2007 demo) | 3 December 2007 | PlayStation 3 | Racing | - |
| Burnout Paradise (Feb 22, 2007 prototype) | 22 February 2007 13:20:06 | Xbox 360 | Racing | - |
| Burnout Paradise (Jan 30, 2008 prototype) | 30 January 2008 18:48:45 | Xbox 360 | Racing | - |