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| Date | System | Genre | Unreleased | |
|---|---|---|---|---|
| Crazy Taxi (Jan 18, 2010 prototype) | 18 January 2010 02:06:17 | Xbox 360 | Action | - |
| Crazy Taxi (Jan 19, 2010 prototype) | 19 January 2010 07:30:37 | Xbox 360 | Action | - |
| Crazy Taxi (Mar 9, 2010 prototype) | 9 March 2010 | Xbox 360 | - | |
| Crazy Taxi (Oct 30, 1999 prototype) | 30 October 1999 04:22:37 | Dreamcast | Action | - |
| Crazy Taxi (Sep 21, 2001 prototype) | 21 September 2001 | Nintendo GameCube | Action | - |
| Crazy Taxi 2 (Mar 11, 2001 prototype) | 11 March 2001 | Dreamcast | Arcade | - |
| Crazy Taxi 2 (May 14, 2001 prototype) | 14 May 2001 18:31:21 | Dreamcast | Arcade | - |
| Crazy Taxi 3: High Roller (Apr 15, 2002 prototype) | 15 April 2002 13:50:09 | Xbox | Racing, Action | - |
| Crazy Taxi 3: High Roller (May 29, 2002 prototype) | 29 May 2002 13:19:12 | Xbox | Racing, Action | - |
| Crazy Taxi: Catch a Ride (Prototype) | Game Boy Advance | Action | - | |
| Crazy Taxi: Fare Wars (Jun 28, 2007 prototype) | 28 June 2007 | PlayStation Portable | Racing, action | - |
| Creation (Oct 26, 1995 demo) | 26 October 1995 07:04:00 | PC | Simulation | ✓ |
| Creation for the Imagination (May 28, 1993 prototype) | 28 May 1993 10:08:38 | Philips CD-i | Reference | ✓ |
| Creation with Media Mogul (Jun 17, 1993 prototype) | 17 June 1993 16:52:03 | Philips CD-i | Reference | ✓ |
| Creature Shock (Oct 28, 1995 prototype) | 28 October 1995 21:12:13 | Sega Saturn | First Person Shooter | - |
| Creatures 3 (Oct 21, 1999 prototype) | 21 October 1999 | PC | - | |
| Crime Killer (Apr 1, 1998 prototype) | 1 April 1998 | PlayStation | Vehicular Combat | - |
| Crime Killer (Apr 12, 1998 prototype) | 12 April 1998 | PlayStation | Vehicular Combat | - |
| Crime Killer (Dec 3, 1997 prototype) | 3 December 1997 18:07:10 | PlayStation | Vehicular Combat | - |
| Crime Life: Gang Wars (Aug 9, 2005 prototype) | 9 August 2005 13:11:26 | Xbox | Action-Adventure | - |
| Crime Patrol (Sep 25, 1996 prototype) | 25 September 1996 | Sega Saturn | FMV | ✓ |
| Crimewave (Jul 16, 1996 prototype) | 16 July 1996 18:08:46 | Sega Saturn | Vehicular Combat | - |
| Crimewave (Nov 4, 1996 prototype) | 4 November 1996 13:40:36 | Sega Saturn | Vehicular Combat | - |
| Crimewave (Oct 15, 1996 prototype) | 15 October 1996 11:02:38 | Sega Saturn | Vehicular Combat | - |
| Criminal Persuit (NTSC prototype) | Atari 2600 | Platformer | - | |
| Crimson Alliance (Jun 28, 2011 prototype) | 28 June 2011 | Xbox 360 | Action Adventure | - |
| Crimson Dragon (Mar 27, 2012 Prototype) | 27 March 2012 | Xbox 360 | Rail Shooter | ✓ |
| Crimson Sea (Oct 16, 2002 prototype) | 16 October 2002 06:11:24 | Xbox | Action-Adventure | - |
| Crimson Sea 2 (Feb 6, 2004 prototype) | 6 February 2004 11:03:32 | PlayStation 2 | Shoot-em-Up | - |
| Crimson Sea 2 (Jan 4, 2004 prototype) | 4 January 2004 15:29:07 | PlayStation 2 | Shoot-em-Up | - |
| Crimson Skies: High Road to Revenge (Aug 7, 2001 prototype) | 7 August 2001 23:06:26 | Xbox | Aircraft Combat Simulator | - |
| Crimson Skies: High Road to Revenge (Jun 4, 2003 prototype) | 4 June 2003 19:28:35 | Xbox | Aircraft Combat Simulator | - |
| Crisis Zone (Aug 2, 2004 prototype) | 2 August 2004 | PlayStation 2 | Light gun shooter | - |
| Crisis Zone (Jun 18, 2004 prototype) | 18 June 2004 20:17:50 | PlayStation 2 | Rail shooter | - |
| Croc 2 (Apr 30, 1999 prototype) | 30 April 1999 18:58:38 | PlayStation | Platform | - |
| Croc 2 (Jun 13, 1999 prototype) | 13 June 1999 22:17:36 | PlayStation | Platform | - |
| Croc: Legend of the Gobbos (Aug 11, 1996 prototype) | 6 September 1996 15:00:00 | PlayStation | Adventure | - |
| Croc: Legend of the Gobbos (Feb 28, 1997 prototype) | 28 February 1997 12:00:00 | PlayStation | Adventure | - |
| Croc: Legend of the Gobbos (Sep 2, 1997 prototype) | 2 September 1997 09:51:48 | Sega Saturn | Platformer | - |
| Crossfire (Prototype) | Sega Mega Drive | Shooting | - | |
| Crouching Tiger, Hidden Dragon (Feb 20, 2002 prototype) | 20 February 2002 | Game Boy Advance | Action | - |
| Crusty Demons (Aug 23, 2005 prototype) | 23 August 2005 | Xbox | Racing | - |
| CryEngine (May 30, 2012 prototype) | 30 May 2012 00:09:30 | Xbox 360 | SDK | - |
| CryEngine (Oct 26, 2011 prototype) | 26 October 2011 15:06:16 | Xbox 360 | SDK | - |
| Crying Dragon (Prototype) | Sega Mega Drive | RPG | ✓ | |
| Crypt Killer (Jan 8, 1997 prototype) | 8 January 1997 04:44:12 | Sega Saturn | Rail Shooter | - |
| Crysis (Aug 1, 2011 prototype) | 1 August 2011 | Xbox 360 | FPS | - |
| Crysis (Aug 14, 2009 prototype) | 14 August 2009 02:53:41 | Xbox 360 | First Person Shooter | - |
| Crysis (Aug 16, 2011 prototype) | 16 August 2011 | Xbox 360 | FPS | - |
| Crysis (Aug 23, 2011 prototype) | 23 August 2011 | Xbox 360 | FPS | - |
| Crysis (Feb 11, 2011 prototype) | 11 February 2011 00:29:55 | Xbox 360 | First Person Shooter | - |
| Crysis (Feb 4, 2011 prototype) | 4 February 2011 01:26:41 | Xbox 360 | First Person Shooter | - |
| Crysis (Jul 12, 2011 prototype) | 12 July 2011 | Xbox 360 | FPS | - |
| Crysis (Jul 28, 2011 prototype) | 28 July 2011 | Xbox 360 | FPS | - |
| Crysis (Jul 29, 2011 prototype) | 29 July 2011 | Xbox 360 | FPS | - |
| Crysis (May 26, 2011 prototype) | 26 May 2011 | Xbox 360 | FPS | - |
| Crysis (Oct 19, 2010 prototype) | 19 October 2010 12:27:59 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Apr 7, 2011 DLC Retaliation Pack Prototype) | 7 April 2001 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Aug 1, 2011 prototype) | 1 August 2011 | PlayStation 3 | First-Person Shooter | - |
| Crysis 2 (Dec 12, 2009 prototype) | 12 December 2009 00:00:00 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Dec 14, 2010 prototype) | 14 December 2010 00:00:00 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Dec 31, 2010 prototype) | 31 December 2010 17:26:48 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Dec 8, 2010 prototype) | 8 December 2010 | Xbox 360 | First-Person Shooter | - |
| Crysis 2 (Feb 10, 2011 prototype) | 10 February 2011 14:39:28 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Feb 12, 2011 prototype) | 12 February 2011 19:58:23 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Feb 13, 2011 prototype) | 13 February 2011 01:22:28 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Feb 14, 2011 prototype) | 14 February 2011 17:24:14 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Feb 15, 2011 Multiplayer Demo prototype) | 15 February 2011 | PlayStation 3 | First-Person Shooter | - |
| Crysis 2 (Feb 16, 2011 Prototype) | 16 February 2011 01:00:08 | Xbox 360 | FPS | - |
| Crysis 2 (Feb 24, 2011 Multiplayer demo) | 24 February 2011 | PC | First-Person Shooter | - |
| Crysis 2 (Feb 7, 2011 Prototype) | 7 February 2011 01:00:05 | Xbox 360 | FPS | - |
| Crysis 2 (Feb 8, 2011 prototype) | 8 February 2011 15:13:49 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Feb 9, 2011 prototype) | 9 February 2011 11:53:11 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Jan 10, 2011 prototype) | 10 January 2011 03:42:04 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Jan 12, 2011 prototype) | 12 January 2011 02:01:48 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Jan 15, 2011 prototype) | 15 January 2011 09:45:38 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Jan 16, 2011 prototype) | 16 January 2011 12:26:12 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Jan 18, 2011 02.03 prototype) | 18 January 2011 02:03:59 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Jan 18, 2011 12.26 prototype) | 18 January 2011 12:26:34 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Jan 20, 2011 prototype) | 20 January 2011 03:39:00 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Jan 21, 2011 prototype) | 21 January 2011 04:31:09 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Jan 22, 2011 prototype) | 22 January 2011 15:34:04 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Jan 23, 2011 prototype) | 23 January 2011 02:15:38 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Jan 25, 2011 prototype) | 25 January 2011 11:39:21 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Jan 26, 2011 prototype) | 26 January 2011 14:48:59 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Jan 27, 2011 11.17 prototype) | 27 January 2011 11:17:50 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Jan 27, 2011 11.26 prototype) | 27 January 2011 11:26:01 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Jan 27, 2011 prototype) | 27 January 2011 20:15:03 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Jan 28, 2011 prototype) | 28 January 2011 03:39:12 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Jan 31, 2011 prototype) | 31 January 2011 01:19:35 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Jan 5, 2011 prototype) | 5 January 2011 12:15:25 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Jul 20, 2011 prototype) | 20 July 2011 18:20:48 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Jun 29, 2011 prototype) | 29 June 2011 | Xbox 360 | First-Person Shooter | - |
| Crysis 2 (Mar 23, 2012 prototype) | 23 March 2012 | PlayStation 3 | First-Person Shooter | - |
| Crysis 2 (May 26, 2010 prototype) | 26 May 2010 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Nov 11, 2010 prototype) | 11 November 2010 00:13:57 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Nov 24, 2010 prototype) | 24 November 2010 16:11:45 | Xbox 360 | First Person Shooter | - |
| Crysis 2 (Sep, 7, 2010 Multiplayer Prototype) | July 2010 | Xbox 360 | FPS | - |
| Crysis 3 (Apr 15, 2013 prototype) | 15 April 2013 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Apr 4, 2013 prototype) | 4 April 2013 | Xbox 360 | FPS | - |
| Crysis 3 (Apr 6, 2013 prototype) | 6 April 2013 23:21:00 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Apr 7, 2013 prototype) | 7 April 2013 23:20:04 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Aug 10, 2012 prototype) | 10 August 2012 13:14:33 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Aug 6, 2012 11.34 prototype) | 6 August 2012 11:34:17 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Aug 6, 2012 13.28 prototype) | 6 August 2012 13:28:51 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Dec 13, 2012 Prototype) | 13 December 2012 12:55:51 | Xbox 360 | FPS | - |
| Crysis 3 (Dec 14, 2012 15.59 Multiplayer prototype) | 14 December 2012 15:59:07 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Dec 14, 2012 19.21 Multiplayer prototype) | 14 December 2012 19:21:46 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Dec 16, 2011 prototype) | 16 December 2011 15:47:35 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Dec 17, 2012 Prototype) | 17 December 2012 02:21:10 | Xbox 360 | FPS | - |
| Crysis 3 (Dec 19, 2012 prototype) | 19 December 2012 | Xbox 360 | FPS | - |
| Crysis 3 (Dec 2, 2012 prototype) | 2 December 2012 12:49:35 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Dec 20, 2012 3.08 prototype) | 20 December 2012 | Xbox 360 | FPS | - |
| Crysis 3 (Dec 20, 2012 3.18 prototype) | 20 December 2012 | Xbox 360 | FPS | - |
| Crysis 3 (Dec 21, 2012 prototype) | 21 December 2012 | Xbox 360 | FPS | - |
| Crysis 3 (Dec 27, 2012 Prototype) | 27 December 2012 00:48:46 | Xbox 360 | FPS | - |
| Crysis 3 (Dec 28, 2012 prototype) | 28 December 2012 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Dec 8, 2011 prototype) | 8 December 2011 01:13:18 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Feb 5, 2013 prototype) | 5 February 2013 | PlayStation 3 | First-Person Shooter | - |
| Crysis 3 (Feb 8, 2013 prototype) | 8 February 2013 | PlayStation 3 | First-Person Shooter | - |
| Crysis 3 (Jan 15, 2013 07.09 Prototype) | 15 January 2013 07:09:29 | Xbox 360 | FPS | - |
| Crysis 3 (Jan 15, 2013 10.05 prototype) | 15 January 2013 10:05:52 | Xbox 360 | FPS | - |
| Crysis 3 (Jan 27, 2012 prototype) | 27 January 2012 | Xbox 360 | FPS | - |
| Crysis 3 (Jan 4, 2013 Multiplayer Prototype) | 4 January 2013 | Xbox 360 | FPS | - |
| Crysis 3 (Jan 4, 2013 prototype) | 4 January 2013 17:01:33 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Jan 5, 2013 JP prototype) | 5 January 2013 | PlayStation 3 | First-Person Shooter | - |
| Crysis 3 (Jan 5, 2013 USA prototype) | 5 January 2013 | PlayStation 3 | First-Person Shooter | - |
| Crysis 3 (Jan 5, 2013 prototype) | 5 January 2013 | PlayStation 3 | First-Person Shooter | - |
| Crysis 3 (Jan 8, 2013 prototype) | 8 January 2013 13:04:39 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Jul 12, 2012 prototype) | 12 July 2012 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Jul 16, 2011 prototype) | 16 July 2011 01:05:06 | Xbox 360 | FPS | - |
| Crysis 3 (Jul 17, 2012 prototype) | 17 July 2012 00:15:31 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Jul 18, 2012 prototype) | 18 July 2012 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Jul 19, 2012 prototype) | 19 July 2012 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Jul 2, 2012 prototype) | 2 July 2012 23:50:18 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Jul 24, 2012 prototype) | 24 July 2012 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Jul 27, 2012 prototype) | 27 July 2012 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Jul 3, 2012 prototype) | 3 July 2012 08:08:10 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (May 17, 2012 prototype) | 17 May 2012 23:34:20 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (May 20, 2012 prototype) | 20 May 2012 23:33:05 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (May 23, 2012 00.31 prototype) | 23 May 2012 00:31:21 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (May 23, 2012 12.59 prototype) | 23 May 2012 12:59:01 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (May 29, 2012 Prototype) | 29 May 2012 | Xbox 360 | FPS | - |
| Crysis 3 (May 30, 2012 prototype) | 30 May 2012 03:15:08 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (May 31, 2012 prototype) | 31 May 2012 03:06:32 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Nov 1, 2012 prototype) | 1 November 2012 02:53:35 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Nov 22, 2012 prototype) | 22 November 2012 13:07:57 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Oct 15, 2012 prototype) | 15 October 2012 01:46:52 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Oct 19, 2011 prototype) | 19 October 2011 11:22:31 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Oct 20, 2011 00.06 prototype) | 20 October 2011 00:06:33 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Oct 20, 2011 11.21 prototype) | 20 October 2011 11:21:46 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Oct 24, 2012 prototype) | 24 October 2012 01:46:18 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Oct 29, 2012 prototype) | 29 October 2012 | Xbox 360 | First-Person Shooter | - |
| Crysis 3 (Oct 3, 2011 prototype) | 3 October 2011 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Oct 9, 2012 prototype) | 9 October 2012 01:42:17 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Sep 19, 2011 prototype) | 19 September 2011 00:29:33 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Sep 20, 2011 prototype) | 20 September 2011 08:23:10 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Sep 21, 2011 prototype) | 21 September 2011 01:08:25 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Sep 22, 2011 prototype) | 22 September 2011 01:10:59 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Sep 23, 2011 prototype) | 23 September 2011 01:09:39 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Sep 27, 2012 prototype) | 27 September 2012 11:45:58 | Xbox 360 | First Person Shooter | - |
| Crysis 3 (Sep 4, 2012 prototype) | 4 September 2012 | Xbox 360 | First Person Shooter | - |
| Crystal Castles (Jan 4, 1984 prototype) | Atari 2600 | - | ||
| Crystal Quest (Sep 13, 2007 prototype) | 13 September 2007 | Xbox 360 | Shoot Em Up | - |
| Crystal's Pony Tale (Jul 1, 1994 prototype) | 1 July 1994 07:22:54 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jul 12, 1994 prototype B) | 13 July 1994 05:28:42 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jul 12, 1994 prototype) | 12 July 1994 12:06:52 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jul 13, 1994 prototype) | 13 July 1994 09:54:40 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jul 15, 1994 prototype) | 15 July 1994 11:35:34 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jul 2, 1994 prototype) | 2 July 1994 10:07:08 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jul 3, 1994 prototype) | 5 July 1994 04:48:18 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jun 1, 1994 prototype) | 1 June 1994 06:08:16 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jun 10, 1994 prototype) | 10 June 1994 14:06:26 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jun 23, 1994 prototype) | 23 June 1994 11:25:08 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jun 28, 1994 prototype) | 28 June 1994 10:13:32 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jun 30, 1994 prototype) | 30 June 1994 08:10:50 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (Jun 6, 1994 prototype) | 6 June 1994 08:46:04 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (May 11, 1994 prototype) | 11 May 1994 19:33:02 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (May 19, 1994 prototype) | 19 May 1994 13:19:18 | Sega Mega Drive | Action Platformer | - |
| Crystal's Pony Tale (May 26, 1994 prototype) | 26 May 1994 16:03:22 | Sega Mega Drive | Action Platformer | - |
| Cubicolor (prototype) | Atari 2600 | ✓ | ||
| Cubix Robots for Everyone: Clash 'n Bash (May 14, 2002 prototype) | 14 May 2002 10:28:34 | Game Boy Advance | Beat 'em up | - |
| Culdcept Saga (Jul 2, 2007 prototype) | 2 July 2007 | Xbox 360 | Board Game, Card Based | - |
| Curious George (Dec 2, 2005 prototype) | 2 December 2005 15:37:29 | Xbox | Platformer | - |
| Curse (Jun 26, 1990 prototype) | 26 June 1990 | Sega Mega Drive | Shooter | - |
| Cutthroat Island (Sep 16, 1995 prototype) | 16 September 1995 | Game Gear | Action | - |
| Cutthroat Island (prototype) | SNES | Platformer | - | |
| Cy Girls (Oct 29, 2003 prototype) | 29 October 2003 13:27:15 | PlayStation 2 | Action Adventure | - |
| Cyber Police ESWAT (Prototype A) | Sega Master System | Action | - | |
| Cyber Police ESWAT (Prototype B) | Sega Master System | Action | - | |
| Cyber Police ESWAT (Prototype C) | Sega Master System | Action | - | |
| Cyber Speedway (Jun 26, 1995 prototype) | 26 June 1995 14:30:50 | Sega Saturn | Racing | - |
| Cyber Troopers Virtual-On Force (Sep 13, 2010 prototype) | 13 September 2010 | Xbox 360 | Action | - |
| Cyber Troopers Virtual-On Oratorio Tangram (Dec 9, 1999 prototype) | 9 December 1999 13:30:35 | Dreamcast | Action | - |
| Cyber Troopers Virtual-On Oratorio Tangram (Mar 31, 2009 prototype) | 31 March 2009 | Xbox 360 | Action | - |
| Cybermorph (Early prototype) | 23 August 1993 | Atari Jaguar | Shooter | - |
| Cybernator (Nov 1992 prototype) | November 1992 | SNES | Run and gun | - |
| Cyborg 009 (Prototype) | SNES | Run and gun | - | |
| Cyborg Hunter (Prototype) | Sega Master System | Arcade | - | |
| D (Jan 15, 1996 prototype) | 15 January 1996 08:38:52 | PlayStation | Adventure | - |
| D&Co (Prototype) | Nintendo DS | - | ||
| DJ Hero (Jul 20, 2009 prototype) | 20 July 2009 22:55:14 | Xbox 360 | Rhythm | - |
| DJ Hero (Jul 28, 2009 prototype) | 28 July 2009 | Xbox 360 | Music | - |
| DJ Hero 2 (Jul 6, 2010 prototype) | 6 July 2010 | Xbox 360 | Music, Rhythm | - |
| DK King of Swing (iQue prototype) | Game Boy Advance | Platformer | - | |
| DOA2: Hardcore (Oct 1, 2000 prototype) | 1 October 2000 16:57:12 | PlayStation 2 | Fighting | - |
| DOOM II (Jan 6, 2010 prototype) | 6 January 2010 20:47:30 | Xbox 360 | First Person Shooter | - |
| DOOM II (May 5, 2010 prototype) | 5 May 2010 | Xbox 360 | First Person Shooter | - |
| DSP-1 Tech Demo | SNES | Tech Demo | ✓ | |
| Daffy Duck in Hollywood (ESB Prototype) | Sega Mega Drive | Platform | - | |
| Daffy Duck: The Marvin Missions (Prototype) | SNES | Platformer | - | |
| Dai Senryaku VII: Modern Military Tactics (Oct 11, 2004 prototype) | 11 October 2004 18:02:26 | Xbox | Turn-Based Strategy | - |
| Daikatana (Apr 19, 2000 prototype) | 19 April 2000 | Game Boy Color | Role Playing | - |
| Dakar 2 (Jan 27, 2003 prototype) | 27 January 2003 16:44:14 | PlayStation 2 | Racing | - |
| Dakar 2 (Nov 28, 2002 prototype) | 28 November 2002 14:54:28 | PlayStation 2 | Racing | - |
| Damnation (Apr 20, 2009 prototype) | 20 April 2009 | PlayStation 3 | Third-person shooter | - |
| Damnation (Jan 6, 2009 prototype) | 6 January 2009 | PlayStation 3 | Third-person shooter | - |
| Dance Central (Aug 10, 2010 Takehome Beta) | 10 August 2010 | Xbox 360 | Music, Rhythm | - |
| Dance Central (Jun 7, 2010 prototype) | 7 June 2010 21:25:01 | Xbox 360 | Music, Rhythm | - |
| Dance Central 2 (Jul 25, 2011 Takehome Beta) | 25 July 2011 | Xbox 360 | Music, Rhythm | - |
| Dance Central 3 (Aug 29, 2012 prototype) | 29 August 2012 18:34:44 | Xbox 360 | Rhythm | - |
| Dance Central 3 (Sep 16, 2012 prototype) | 16 September 2012 07:38:40 | Xbox 360 | Rhythm | - |
| Dance Dance Revolution (Dec 8, 2000 prototype) | 8 December 2000 15:02:34 | PlayStation | Rhythm | - |
| Dance Dance Revolution (Sep 1, 2010 prototype) | 1 September 2010 10:49:51 | Nintendo Wii | Rhythm | - |
| Dance Dance Revolution Extreme (Jul 12, 2004 prototype) | 12 July 2004 18:12:10 | PlayStation 2 | Music, Exercise | - |
| Dance Dance Revolution Extreme (May 10, 2004 prototype) | 10 May 2004 17:07:36 | PlayStation 2 | Music, Exercise | - |
| Dance Dance Revolution Extreme 2 (May 10, 2005 prototype) | 10 May 2005 22:32:06 | PlayStation 2 | Music, Exercise | - |
| Dance Dance Revolution Ultramix (Aug 12, 2003 prototype) | 12 August 2003 23:33:04 | Xbox | Music, Exercise | - |
| Dance Dance Revolution Ultramix 2 (Sep 7, 2004 prototype) | 7 September 2004 21:41:32 | Xbox | Music, Exercise | - |
| Dance Dance Revolution Ultramix 3 (May 14, 2005 prototype) | 14 May 2005 05:32:38 | Xbox | Music, Exercise | - |
| Dance Dance Revolution Ultramix 3 (Sep 3, 2005 prototype) | 3 September 2005 01:18:23 | Xbox | Music, Exercise | - |
| Dance Dance Revolution Universe 3 (Aug 21, 2008 prototype) | 21 August 2008 | Xbox 360 | Music | - |
| Dance Dance Revolution X (Jul 10, 2008 prototype) | 10 July 2008 11:33:38 | PlayStation 2 | Music, Exercise | - |
| Dance Dance Revolution: Disney Mix (Jun 8, 2001 prototype) | 8 June 2001 13:47:32 | PlayStation | Rhythm | - |
| Dance Factory (Feb 22, 2006 prototype) | 22 February 2006 12:32:52 | PlayStation 2 | Rhythm | - |
| Dance Factory (Feb 5, 2006 prototype) | 5 February 2006 | PlayStation 2 | Music | - |
| Dance Factory (Jan 21, 2006 prototype) | 21 January 2006 17:37:56 | PlayStation 2 | Rhythm | - |
| Dance Paradise (Nov 16, 2010 prototype) | 16 November 2010 15:42:14 | Xbox 360 | Rhythm | - |
| Dancing Stage EuroMIX (Sep 1, 2000 prototype) | 1 September 2000 11:13:46 | PlayStation | Dancing | - |
| Dancing Stage Fusion (Jul 8, 2004 prototype) | 8 July 2004 19:29:26 | PlayStation 2 | Rhythm - Dancing | - |
| Dancing Stage Unleashed (Jul 1, 2003 prototype) | 1 July 2003 21:09:29 | Xbox | Rhythm - Dancing | - |
| Dancing Stage: Disney Mix (Jan 7, 2001 prototype) | 7 January 2001 13:30:00 | PlayStation | Rhythm | - |
| Danny Sullivan's Indy Heat (Prototype) | Sega Mega Drive | Racing | ✓ | |
| Dante's Inferno (PC demo) | 28 November 1995 | Atari Jaguar CD | Adventure | ✓ |
| Daredevil: The Man Without Fear (Mar 22, 2004 prototype) | 22 March 2004 09:08:57 | PlayStation 2 | Action Adventure | ✓ |
| Darius Burst: Chronicle Saviours (Nov 9, 2015 prototype) | 9 November 2015 | PlayStation Vita | Shoot 'Em Up | - |
| Dark Arms: Beast Busters (Prototype) | Neo Geo Pocket Color | Role Playing | - | |
| Dark Chambers (Nov 22, 1985 prototype) | Atari 2600 | - | ||
| Dark Cloud (July 12, 2001 prototype) | 12 July 2001 10:19:58 | PlayStation 2 | - | |
| Dark Cloud 2 (Dec 26, 2002 08.12 prototype) | 26 December 2002 08:12:56 | PlayStation 2 | RPG | - |