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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.

Hidden Palace 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)

Community releases

Dec 04, 2025: Forza Horizon (Debug Post Release 10-10-2013) by Chr0m3 x MoDz, Heavy Smoker
Dec 01, 2025: Guilty Gear X (May 23, 2000 prototype) by TurfMasta
Nov 29, 2025: Counter-Strike: Global Offensive (June 18, 2012 prototype) by CrazyCSIW6, TheTechnoGuy18
Nov 26, 2025: Killer is Dead: Nightmare Edition (Jan 9, 2014 prototype) by Dusk
Nov 26, 2025: Fallout: New Vegas (Jul 21, 2010 prototype) by Games' Past
Nov 26, 2025: Fallout: New Vegas (Aug 22, 2010 prototype) by Games' Past
Nov 24, 2025: Five Nights at Freddy's 4 (Jul 23, 2015 04:37:02 prototype) by Lilithdesign388
Nov 24, 2025: Viewpoint 2064 (Apr 13, 2000 prototype) by 8bitbros
Nov 24, 2025: Five Nights at Freddy's 4 (Jul 21, 2015 14:09:06 prototype) by Lilithdesign388
Nov 24, 2025: Five Nights at Freddy's 4 (Jul 21, 2015 19:19:13 prototype) by Lilithdesign388
Nov 24, 2025: Forza Horizon 2 (May 4, 2014 Prototype) by Chr0m3 x MoDz, Heavy Smoker
Nov 24, 2025: Five Nights at Freddy's 4 (Jul 23, 2015 01:38:56 prototype) by Lilithdesign388
Nov 22, 2025: Sly 2: Band of Thieves (Aug 2, 2004 prototype) by SlyCooperReloadCoded, Zami
Nov 19, 2025: WWE '12 (Mar 30, 2011 prototype) by Not over
Nov 19, 2025: LittleBigPlanet 2 (May 18, 2011 prototype) by KeRbDoG
Nov 15, 2025: My Personal Golf Trainer with IMG Academies and David Leadbetter (Jun 15, 2009 prototype) by Dink
Nov 15, 2025: Crazy Mini Golf 2 (Jun 15, 2009 prototype) by Dink
Nov 15, 2025: Battle Rage: Mech Conflict (Feb 5, 2009 prototype) by Dink
Nov 14, 2025: NASCAR Heat 5 (Feb 17, 2020 prototype) by Birdonwheels
Nov 14, 2025: Crazy Mini Golf 2 (Oct 1, 2009 prototype) by Dink

(more)

Latest news

Frogger 2 Motherload Lot
Discuss this release on our Discord server!
Discuss this release on the Highway Frogs Discord server!

Hello everyone! Today we're partnering with Highway Frogs for the release of the Frogger 2 Motherload Lot!
Highway Frogs not only obtained a full development archive of Frogger 2: Swampy's Revenge, but also spent hundreds of hours preparing for this release. What could they have possibly spent hundreds of hours on, you may ask. Isn't releasing prototypes as simple as dumping CDs/ROMs, and uploading them online?

Here are some of the things they did:

Over 1000 Pages of Paper Documents needed to be scanned, deskewed, and turned into PDFs.
Over 200 audio tracks were rendered/mastered extremely carefully using original hardware such as the Yamaha EX-5 and original software like SoundForge 4.0.
The "End of Project" Tape was damaged by a data recovery company, and it took months of reverse-engineering to recover the data ourselves. ([More Info])
Source Code Repos for 7 different games/consoles were byte-matched, and made easy to build on modern computers.
Tools were made for working with some of the backups, such as a 3D object converter, or a compiler/decompiler for game scripts, and more.
Some prototypes were built using source code/assets found within the backups.
Almost every single file (> 60k) was thoroughly investigated for any hidden data, what software used it, etc.
Also juggling several other releases of similar magnitude at the same time. (Coming soon)
A mod fixing Frogger 2's compatibility issues on modern computers, aka the "Frogger 2 Enhanced PC Port".
Tons more.

The Frogger 2 Release

Thank you to Highway Frogs for the big release! There were many people involved in making this release happen, so check out the credits on the release page.

Until next time!

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