- Jun 29, 2025: Animaniacs - Hollywood Hypnotics
- Feb 1, 2025: Frogger 2 Full Development Archive
- Jan 1, 2025: Happy NES Year
- Dec 26, 2024: NESMas - Day 2
- Dec 25, 2024: NESMas - Day 1
- Jul 6, 2024: Vanished without a Trace - Out of the Vortex for the Sega Mega Drive
- Apr 9, 2024: Crash Tag Team Racing (Xbox Prototype)
- Jan 21, 2024: Crash Bash and Spyro 3
- Jan 1, 2024: New Years 2024 - Sonic Heroes
- Dec 25, 2023: A Very Bandicoot Christmas - Crash Bandicoot: Warped Prototype
- Nov 24, 2023: 6GUN: BattleBourne's Unreleased PlayStation 2 Game
- Oct 31, 2023: Daredevil: The Man Without Fear - Unreleased PlayStation 2 Game
- Feb 28, 2023: Phantasy Star Online Prototype
- Feb 15, 2023: PSP Release Candidates
- Dec 25, 2022: Project Deluge: Xbox 360 and Wii
- Dec 9, 2022: Semradical!
- Nov 24, 2022: Sega Technical Institute’s Cancelled Segapede
- Nov 23, 2022: Sonic 3 and Feel Preproduction VHS Tapes!
- Oct 31, 2022: Happy Halloween 2022! Castlevania: Symphony of the Night for the Tiger Game.com!
- Jan 1, 2022: New Years 2022!
- Nov 13, 2021: Go Go Goemon! Mystical Ninja Goemon Zero
- Oct 10, 2021: Mortal Kombat prototype for the Sega Mega Drive
- Sep 18, 2021: Project Deluge: Xbox and Dreamcast
- Jul 24, 2021: Angels with Burning Hearts: Burning Rangers Prototype
- May 1, 2021: Crash Landing
- Apr 17, 2021: Project Deluge: PlayStation 1, Saturn, and CD-I (Part 2)
- Mar 20, 2021: Project Deluge: PlayStation 2
- Jan 1, 2021: Dreams Come True: Sonic 1 (MD) Prototype
- (earlier news)
Main Page
The Hidden Palace is a community dedicated to the preservation of video game development media (such as prototypes, hardware, source code, artwork, and more). This website can be utilized as a catalog for the items that we and others are able to collect and share.
If you are interested in contributing, please see our How to Contribute page.
- Jul 26, 2025: Baldur's Gate 3 (Oct 2, 2020 prototype) by Andersson799
- Jul 26, 2025: Spirit of Speed 1937 (Aug 31, 2000 prototype) by AxlThunder
- Jul 23, 2025: AquaZone (Jul 31, 2006 prototype) by Xil Dreadnought
- Jul 23, 2025: Titus the Fox (Jan 18, 1994 prototype) by Games That Weren't
- Jul 22, 2025: LEGO Battles (Castle prototype C) by Jowijowi
- Jul 22, 2025: Chameleon Twist 2 (Feb 1, 1999 build) by Jowijowi
- Jul 22, 2025: ATV Racing (Apr 7, 2000 prototype A) by Games That Weren't
- Jul 22, 2025: Top Gear Rally (Aug 15, 1997 prototype) by Jowijowi
- Jul 22, 2025: LEGO Harry Potter: Years 1-4 (Feb 5, 2010 prototype) by Jowijowi
- Jul 22, 2025: ATV Racing (Apr 7, 2000 prototype B) by Games That Weren't
- Jul 22, 2025: Rakugakids (Sep 16, 1998 prototype) by Jowijowi
- Jul 22, 2025: LEGO Indiana Jones 2: The Adventure Continues (Aug 10, 2009 Nintendo DS prototype) by Jowijowi
- Jul 22, 2025: ATV Racing (Prototype A) by Games That Weren't
- Jul 22, 2025: LEGO Battles (Pirates prototype) by Jowijowi
- Jul 22, 2025: Disney-Pixar Toy Story 2: Buzz Lightyear to the Rescue! (Nintendo 64 prototype) by Jowijowi
- Jul 22, 2025: ATV Racing (Prototype B) by Games That Weren't
- Jul 18, 2025: GeoTrip (prototype) by Codebound
- Jul 18, 2025: Agent Hugo: Fly Guyz! (prototype) by Codebound
- Jul 17, 2025: Populous (Game Boy prototype A) by Games That Weren't
- Jul 17, 2025: Populous (Game Boy prototype B) by Games That Weren't (more)
Merry NESMas!
For the second day of NESMas, we bring you a collection of prototypes amassed by the Nolan Brothers.
Twin brothers Mark "MrMark0673" and Matt "BeaglePuss" Nolan were mainstays in the online collecting world through much of the 2000s. If you spent any time on the NintendoAge forums, these names are surely familiar to you. They quickly made a name for themselves in particular as collectors of prototype games, building up a sizable collection that included a number of unreleased games. Some games they acquired - Kitty's Catch and Hoppin' Mad, for example - were games that we didn't even know existed until the Nolans found them.
The Nolans enjoyed contributing to fellow NES-playing hobbyists by making these games available, either as physical game cartridges they produced in small quantities or, in some cases, by simply releasing the ROM files online.
The Nolans have mostly stepped away from game collecting today, but they were kind enough to pass along the majority of the ROM files they'd dumped over the years for the sake of historical preservation. While most of these are not completely new to the internet, one thing that is significant for me is that we can now validate clean, unmodified ROMs for unreleased games for the NES. These games were often modified slightly before being put on to physical cartridges, which might have led to some unintended consequences in altering game logic, so being able to provide "clean" copies means that these games are, finally, preserved.
Here it is!
Thanks to Mark and Matt Nolan & Frank Cifaldi for the release as well as hwd45, togemet2 for help with the release!
Make sure you catch our NES Year stream on January 1st!
- Funtimeandrefoxy: 14,904 edits, 7126 articles
- Tikal.: 4,949 edits, 2565 articles
- Dink: 3,208 edits, 2203 articles
- Glitchmaster: 1,366 edits, 902 articles
- Czykago: 1,143 edits, 542 articles
- Слава України: 1,013 edits, 369 articles
- Starfrost: 882 edits, 413 articles
- Lilithdesign388: 748 edits, 219 articles
- PopuriAO29: 662 edits, 7 articles
- Vindico: 620 edits, 306 articles
- Hiccup: 590 edits, 181 articles
- Nex: 521 edits, 149 articles
- Slycooper124: 493 edits, 368 articles
- Kneesnap: 480 edits, 276 articles
- Rain0x06: 477 edits, 114 articles (more)
- HERITAGE by Dink
- Urban Assault (Jun 5, 1998 prototype) by Dink
- Rock Band 4 (Sep 1, 2015 prototype) by Funtimeandrefoxy
- The LEGO Movie 2 Videogame (Nov 26, 2018 prototype) by Funtimeandrefoxy
- Spirit of Speed 1937 (Aug 31, 2000 prototype) by AxlThunder
- Blur (Install Data prototype) by Funtimeandrefoxy
- Blur (Mar 19, 2010 prototype) by Funtimeandrefoxy
- Metal Gear Solid 4: Guns of the Patriots (Install Data prototype) by Funtimeandrefoxy
- Homefront 2 (Feb 26, 2014 prototype) by Funtimeandrefoxy
- NHL 16 (Aug 26, 2015 Patch Data prototype) by Funtimeandrefoxy
- SingStar Junior (Mar 9, 2010 prototype) by Funtimeandrefoxy
- Baldur's Gate 3 (Oct 2, 2020 prototype) by Funtimeandrefoxy
- The Fight: Lights Out (0.03.180 prototype) by Funtimeandrefoxy
- Tecmo Bowl Throwback (prototype) by Funtimeandrefoxy
- Tekken 5: Dark Resurrection Online (prototype) by Funtimeandrefoxy (more)