- 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
- 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)
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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.
Past news
Latest contributed articles
- Guilty Gear X (May 23, 2000 prototype) by Tikal.
- Call of Duty: Black Ops II (November 7, 2012 Prototype) by GDmad10
- Counter-Strike: Global Offensive (June 18, 2012 prototype) by TheTechnoGuy18
- Nyehmeh by Lilithdesign388
- Pizza Frenzy (Nov 27, 2004 prototype) by Lilithdesign388
- Killer is Dead: Nightmare Edition (Jan 9, 2014 prototype) by Maple Ellie
- Taz: Wanted (Jul 31, 2002 prototype) by Tikal.
- Taz: Wanted (Jun 27, 2002 prototype) by Tikal.
- Taz: Wanted (May 29, 2002 prototype) by Tikal.
- Taz: Wanted (May 2, 2002 prototype) by Tikal. (more)
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Latest news
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Doom Troopers: Mutant Chronicles (Prototype A)
Doom Troopers: Mutant Chronicles (Prototype B)
Super Bomberman 2 (Prototype)
Super Bomberman 3 (Prototype)
Ghoul Patrol (PAL build)
Discuss this release on the boards here!
We have some more prototypes courtesy of Radar as part of his lot from Virgin!
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Doom Troopers: Mutant Chronicles (Prototype A)
Doom Troopers: Mutant Chronicles (Prototype B)
First up we have some nice prototypes of Doom Troopers: Mutant Chronicles for the SNES. These prototypes feature different level layouts, music, and some other aesthetic differences as well. The latest prototype has a level select activated after the character select screen which should let you play all that the prototype offers. However, the level select isn’t active by default for the earliest prototype. We were able to hack the level select back on and have included the ROM in the same archive as the unaltered one.
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Super Bomberman 2 (Prototype)
Super Bomberman 3 (Prototype)
Next we have some prototypes from the Super Bomberman series! The Super Bomberman 3 prototype is the same prototype that’s already in no-intro, but the new dump confirms that the dump that exists is correct. That prototype in particular has some minor changes in some of the stages as far as layout goes. The prototype of Super Bomberman 2 is new however, and is a localization prototype of the US version. This prototype contains some minor differences.
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For the sake of completion, we are also including this altered PAL build of Ghoul Patrol for the SNES. This build is exactly the same as the final European release, but the checksum and product ID are different.
Until next time!
