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Release in progress!

We are working to add the NES year release to the site, stay tuned! (might take a couple hours)

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.

Hidden Palace news

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

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

(earlier news)

Community releases

Jan 17, 2026: Fight Night Round 3 (Jan 19, 2006 Prototype) by Gonzo
Jan 15, 2026: Sea Battle (Feb 29, 2008 prototype) by AMSNL
Jan 15, 2026: QNet (Jun 30, 2008 prototype) by AMSNL
Jan 15, 2026: Hungry Dinosaurs (prototype) by Snescentral
Jan 15, 2026: Chinese Lord (Jan 10, 2008 prototype) by AMSNL
Jan 14, 2026: Kinect Disneyland Adventures (Sep 13, 2011 prototype) by AMSNL
Jan 14, 2026: Swarm (Jul 29, 2010 prototype) by AMSNL
Jan 13, 2026: Project Gotham Racing 3 (Aug 22, 2005 prototype) by Dink
Jan 12, 2026: Tiny Troops (Oct 28, 1994 prototype) by Games That Weren't
Jan 12, 2026: Tiny Troops (Apr 8, 1994 prototype) by Games That Weren't
Jan 12, 2026: Tiny Troops (Nov 29, 1993 prototype) by Games That Weren't
Jan 12, 2026: Tiny Troops (Aug 9, 1994 prototype) by Games That Weren't
Jan 12, 2026: Tiny Troops (Mar 11, 1994 prototype) by Games That Weren't
Jan 12, 2026: Tiny Troops (Oct 25, 1993 prototype) by Games That Weren't
Jan 12, 2026: Tiny Troops (Nov 14, 1994 prototype) by Games That Weren't
Jan 12, 2026: Tiny Troops (Apr 13, 1994 prototype) by Games That Weren't
Jan 12, 2026: Tiny Troops (Jan 17, 1994 prototype) by Games That Weren't
Jan 12, 2026: Tiny Troops (Sep 20, 1993 prototype) by Games That Weren't
Jan 12, 2026: Tiny Troops (Aug 16, 1994 prototype) by Games That Weren't
Jan 12, 2026: Tiny Troops (Mar 17, 1994 prototype) by Games That Weren't

(more)

Latest news

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!

Nolan Brothers Lot

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!

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