- 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.
- Sep 24, 2026: Dishonored (Aug 7, 2012 prototype) by Witch
- Sep 24, 2026: Rise of the Guardians: The Video Game (Oct 19, 2012 prototype) by James2452
- Sep 22, 2026: Norse by Norsewest: The Return of the Lost Vikings (Feb 25, 1997 prototype) by AMSNL
- Sep 21, 2026: NFL Fever 2003 (Jun 24, 2002 prototype) by AMSNL
- Sep 19, 2026: SEGA Mega-CD Bios (Hoshino Special) (sample) by Gageiro
- Sep 18, 2026: Grand Theft Auto V (Oct 13, 2014 prototype) by
- Sep 18, 2026: Dr. Robotnik's Mean Bean Machine (Kraftwerk prototype) by CartridgeCulture
- Sep 17, 2026: DJ GEMS Demo (prototype) by CartridgeCulture
- Sep 16, 2026: Burnout 3: Takedown (Jul 28, 2004 prototype) by MattKC
- Sep 16, 2026: Sega Multimedia Studio: Sega CD Demo (May 9, 1992 prototype) by CartridgeCulture
- Sep 16, 2026: Sega Multimedia Studio: Rave CD (Jun 3, 1993 prototype B) by CartridgeCulture
- Sep 16, 2026: Sega Multimedia Studio: Rave CD (Jun 3, 1993 prototype A) by CartridgeCulture
- Sep 16, 2026: Sonic the Hedgehog CD (Aug 4, 1993 prototype) by CartridgeCulture
- Sep 16, 2026: Jurassic Park (Jan 26, 1994 prototype) by CartridgeCulture
- Sep 16, 2026: Jurassic Park (Nov 18, 1993 prototype) by CartridgeCulture
- Sep 16, 2026: Sewer Shark (Jun 20, 1993 prototype) by CartridgeCulture
- Sep 16, 2026: Prize Fighter (Nov 18, 1993 prototype) by CartridgeCulture
- Sep 16, 2026: Dracula Unleashed (Nov 8, 1993 prototype) by CartridgeCulture
- Sep 16, 2026: Ports of Call: XXL (Oct 9, 2003 prototype) by AMSNL
- Sep 15, 2026: Batman (US prototype) by CartridgeCulture (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, 11149 articles
- Tikal.: 7,787 edits, 4318 articles
- Dink: 3,937 edits, 2783 articles
- Gonzo: 2,862 edits, 1340 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, 428 articles
- UNKNOWNED: 810 edits, 236 articles
- Togemet2: 656 edits, 689 articles
- Cheato: 634 edits, 239 articles
- Vindico: 624 edits, 314 articles
- Hiccup: 614 edits, 185 articles (more)
- Dishonored (Aug 7, 2012 prototype) by Gonzo
- Rise of the Guardians: The Video Game (Oct 19, 2012 prototype) by Funtimeandrefoxy
- 1 vs. 100 (Feb 25, 2009 prototype) by Revurt
- DON (Mar 9, 2012 prototype) by AubreyUnseen
- Garfield Fur Tech Demo (prototype) by AubreyUnseen
- Norse by Norsewest: The Return of the Lost Vikings (Feb 25, 1997 prototype) by Dink
- NFL Fever 2003 (Jun 24, 2002 prototype) by Dink
- SEGA Mega-CD Bios (Hoshino Special) (sample) by Gageiro
- Streets of Rage II (Preview) by Divingkataetheweirdo
- Grand Theft Auto V (Oct 13, 2014 prototype) by Gonzo
- Watch Dogs (Mar 28, 2014 prototype) by Reverb3252
- Dr. Robotnik's Mean Bean Machine (Kraftwerk prototype) by MDTravis
- Left 4 Dead 2 ( November 4, 2009 demo) by UNKNOWNED
- Left 4 Dead (November 12, 2008 demo) by UNKNOWNED
- DJ GEMS Demo (prototype) by MDTravis (more)