- Oct 31, 2026: Happy Halloween 2026! A Journey Through STI's Early Years
- Feb 1, 2026: The Dead Are Rising
- Jan 24, 2026: Beavis and Butt-Head do Hollywood
- Jan 1, 2026: Year of Spore
- Dec 25, 2025: One Bad Ass Hedgehog - Shadow the Hedgehog
- Nov 26, 2025: A Mojave Thanksgiving - Fallout: New Vegas Prototype
- Oct 31, 2025: Happy Halloween 2025! Dark Empires Prototype & Craig Stitt Interview
- 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
- (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.
- Nov 11, 2026: BandFuse: Rock Legends (Oct 25, 2013 prototype) by Gonzo
- Nov 11, 2026: BandFuse: Rock Legends (Oct 24, 2013 prototype) by Gonzo
- Nov 11, 2026: BandFuse: Rock Legends (Jul 2, 2013 prototype) by Gonzo
- Nov 11, 2026: BandFuse: Rock Legends (Jun 27, 2013 prototype) by Gonzo
- Nov 10, 2026: Halo Wars (Dec 16, 2008 prototype) by Gonzo, Not over
- Nov 10, 2026: Blazing Angels: Squadrons of WWII (Feb 6, 2006 prototype) by AMSNL
- Nov 09, 2026: Hitman: Blood Money (Feb 13, 2006 prototype) by AMSNL
- Nov 09, 2026: Tom Clancy's Splinter Cell: Double Agent (Jul 4, 2006 prototype) by AMSNL
- Nov 09, 2026: Tom Clancy's Splinter Cell: Double Agent (Jan 25, 2006 prototype) by AMSNL
- Nov 06, 2026: InVersion (Feb 19, 2012 prototype) by C5R35
- Nov 06, 2026: God Mode (May 16, 2012 prototype) by C5R35
- Nov 05, 2026: Pet Alien (prototype) by
- Nov 03, 2026: FIFA Soccer 2005 (Jul 5, 2004 prototype) by C5R35
- Oct 31, 2026: Kid Chameleon (Prototype B) by CartridgeCulture
- Oct 31, 2026: Jester (February 12, 1993 prototype) by CartridgeCulture
- Oct 31, 2026: Treasure Tails (April 6, 1993 prototype) by CartridgeCulture
- Oct 31, 2026: B-Bomb (October 2, 1992 prototype) by CartridgeCulture
- Oct 31, 2026: God Mode (Jul 6, 2012 prototype) by C5R35
- Oct 31, 2026: Segapede (January 25, 1994 prototype) by CartridgeCulture
- Oct 31, 2026: Little Monsters (March 19, 2009 prototype) by Gonzo (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: 24,039 edits, 11226 articles
- Tikal.: 7,787 edits, 4318 articles
- Dink: 3,937 edits, 2955 articles
- Gonzo: 3,009 edits, 1781 articles
- Czykago: 1,751 edits, 547 articles
- Lilithdesign388: 1,410 edits, 383 articles
- Glitchmaster: 1,376 edits, 886 articles
- PopuriAO29: 1,120 edits, 9 articles
- Слава України: 1,016 edits, 368 articles
- Starfrost: 1,008 edits, 430 articles
- UNKNOWNED: 810 edits, 244 articles
- Nex: 698 edits, 149 articles
- Togemet2: 656 edits, 689 articles
- Cheato: 634 edits, 239 articles
- Vindico: 624 edits, 314 articles (more)
- BandFuse: Rock Legends (Oct 25, 2013 prototype) by Gonzo
- BandFuse: Rock Legends (Oct 24, 2013 prototype) by Gonzo
- BandFuse: Rock Legends (Jul 2, 2013 prototype) by Gonzo
- BandFuse: Rock Legends (Jun 27, 2013 prototype) by Gonzo
- Halo Wars (Dec 16, 2008 prototype) by Gonzo
- Blazing Angels: Squadrons of WWII (Feb 6, 2006 prototype) by Dink
- Hitman: Blood Money (Feb 13, 2006 prototype) by Dink
- NiER:Automata (Jul 10, 2021 prototype) by Starfrost
- Tom Clancy's Splinter Cell: Double Agent (Jul 4, 2006 prototype) by Dink
- Tom Clancy's Splinter Cell: Double Agent (Jan 25, 2006 prototype) by Dink
- The Simpsons: Hit & Run (Sep 12, 2003 prototype) by Gonzo
- Escape From Playtime (prototype) by Kikodavid
- Assassin's Creed IV: Black Flag (Aug 23, 2013 prototype) by Funtimeandrefoxy
- InVersion (Feb 19, 2012 prototype) by C5R35
- Uncharted 3: Drake's Deception (Oct 4, 2011 Multiplayer prototype) by Funtimeandrefoxy (more)