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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

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

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)

Latest contributed articles

• News/Beavis and Butt-Head Do Hollywood by Sazpaimon
• Spider-Man (New Level Soft) (July 27, 1998 prototype) by Sazpaimon
• Spider-Man (New Level Soft) (Oct 8, 1998 prototype) by Sazpaimon
• Beavis and Butt-Head Do Hollywood (Sep 2, 1998 prototype) by Sazpaimon
• Beavis and Butt-Head Do Hollywood (Nov 10, 1998 prototype) by Sazpaimon
• Beavis and Butt-Head Do Hollywood (Nov 1, 1998 prototype) by Sazpaimon
• Beavis and Butt-Head Do Hollywood (Mar 4, 1998 prototype) by Sazpaimon
• Grand Theft Auto IV (Jan 30, 2009 Patch Data prototype) by Funtimeandrefoxy
• Exerion (PAL prototype) by Ndiddy
• And Yet It Moves (Build 1.04) by MattTheCatt
(more)

Top contributors

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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!