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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

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)

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

Putty Squad (Early prototype)
Dune II: The Battle for Arrakis (Jan 11, 1994 prototype)
Champions World Class Soccer (Mar 18, 1994 prototype)
Radical Rex (Prototype)
Street Racer (Mar 21, 1995 prototype)
Discuss this release on our Discord server!

Hello once again. We're back with even more goodies for the Sega Mega Drive, straight from the big man himself.

First up, we have an extremely early prototype of the canceled port of the game Putty Squad, which was originally in development for the Amiga 1200 but only came out on the SNES in the end during its time. Next we have a late prototype of Dune II: The Battle for Arrakis straight from a bunch of unmarked EPROMs. Next we have a nice prototype of Champions World Class Soccer that contains many differences in comparison to the final build. We also have a somewhat late prototype of Radical Rex for the Mega Drive as well, containing mostly code differences. Finally, we have a build of Street Racer for the Mega Drive that matches the final build but with an altered/watermarked header.

Stay tuned for tomorrow for some more goodies! Until next time, see ya!