Please also check out and support our retro friends and fellow preservationists at the following links below. With thanks to Fabrizio Bartoloni for many of the suggestions:
- 3D Construction Kit lost games (see under each platform)
- Atari Protos
- Arcade Heroes – Master List of Unreleased Arcade Games
- AVP Galaxy – released and unreleased Alien games.
- AtariCrypt unreleased game posts
- AtariMania – unreleased and missing in action games for Atari ST
- AtariMania – prototype Atari 5200 games
- AtariMania 400/800/XE/XL
- AtariMania – Jaguar
- Atari Compendium 2600 unreleased protos and hardware
- Acorn Electron World unreleased games:
- BBC Micro unreleased and pre-released games
- Commodore 64 Scene Database
- Cancelled Contra games
- ColecoVision.dk unreleased games
- Commodore Blog
- CuteFloor – Early beta and unreleased games
- Delisted Games
- Dragon’s Lair Project – Unreleased Laser Disc game plans and prototypes
- Dump Club 64
- FREEZE64
- Fujitsu FM Towns Missing and unreleased games
- Gamebase 64
- Gaming Alexandria – Video game history and preservation
- Games That Time Forgot (Spectrum)
- Generation-MSX Unreleased Games
- GiantBomb cancelled games listings
- Hall of Light
- High Voltage Sid Collection
- Hardcore Gaming 101 – unreleased games
- Irem prototypes at System16.com
- Kasettilamerit (tape lamers)
- KahviBreak – J2ME preservation
- Konix multi-system archive
- Lost Media archive
- Lost Media Wiki
- MSX Games World – Unreleased games
- Nexus23 Labs unreleased Amiga games
- Neo-Geo Pocket unreleased games (Scroll to bottom)
- Neo-Geo Protos
- N-Gage discord
- Old games (Unreleased PC games)
- Obscure Gamers
- PC Engine games (search for “Unreleased” for all unreleased titles)
- Planet V-Boy unreleased games
- Playstation graveyard
- Plus4World unreleased list
- PtoPOnline
- Recovering lost treasure filled floppy discs
- SMS power (Sega Master System)
- Sega8bit.com – rumoured and unreleased SMS games
- SEGA Dreamcast Info – List of cancelled Dreamcast games
- SEGA Mega CD Missing in Action
- SEGA Retro – Unreleased Mega Drive games
- SNES Central
- Stairway to hell – Lost and Found (BBC Micro)
- The Can
- The Classic Adventures Solution Archive
- The Cutting Room Floor
- The Genesis Temple – Gaming history site
- The Hidden Palace
- The Lost Levels
- The Games That Time Forgot (TZX Vault – ZX Spectrum)
- Undumped Wiki
- Unreleased games (Apple)
- Unreleased NES games
- Unreleased Star Trek games
- Unreleased Saturn Games
- Unreleased CD-i games
- Unreleased games – Subreddit
- Unseen 64
- Valve Archive
- Vintage is the New Old
- World of Spectrum
Preservation guides + societies
- Understanding the Dreamcast GD-ROM layout
- Software Preservation Society
- Kyroflux
- The Video Game History Foundation
- Videogame Heritage Society
- Video Game Preservation Museum C.I.C