There's a lot of games out there that somehow get neglected in the general run of things. Sometimes, this is because of bad press or poor publicity, or just that the game itself wasn't very good. Sometimes, games don't always make it past the beta stage of development, leaving us with only incomplete demos or prototypes.
This site gathers together some of these lost games and digs around a bit, to see if there's anything interesting left. The pages may have details of content not seen in the final game (if there was one) and codes or hacks for rendering this content playable (if at all possible).
Update info can be found in the Tech Demo blog.
Demos, Betas, Prototypes and Unused Content
Driver 1 & 2 Demos (PSX)
Omega Boost Beta Demos (PSX)
Tomb Raider 3 Area 51 Demo (PSX)
StarCon Prototype (PSX)
Blast Radius (PSX)
Judge Dredd (SNES)
Dragon Sword 64 (N64)
Judge Dredd: Dredd Vs Death (PC)
Prime (SNES)
Glover 2 (N64)
Tomorrow Never Dies (PSX)
Urban Chaos (PSX)
Urban Chaos (PC)
Blade (PSX)
Dino Crisis 2 Demo (PSX)
Superman 64 Beta (N64)
Alien Versus Predator (Lynx)
Tomb Raider: The Last Revelation Alternative Demo
Super Full Metal Planet (SNES)
Panzer Front Bis (PSX)
Urban Assault (PSX)
Batman And Robin (PSX)
Future Cop L.A.P.D. Demo (PSX)
The World Is Not Enough Early Build (N64)
PSP & PS2 Debug, Cheats and Other Stuff
Star Trek Tactical Assault
Macross Ace Frontier
Gun Showdown
Macross Ultimate Frontier
Star Wars Battlefront II
Ghost Recon Advanced Warfighter 2
Pilot Academy
ATV Offroad Fury Pro
Earth Defense Forces 2 Portable
Star Wars Battlefront: Elite Squadron
Ultimate Mortal Kombat Unchained
Wingz
Misc. PC Games
Chaos Kingdom (PC)
Seed (PC)
Babylon 5: Into The Fire (PC)
Witchblade: The Games (PC)
Battlestar Galactica (PC)
Sky Captain: Flying Legion Air Combat Challenge (PC)
Frank Herbert's Dune (PC)
Doctor Who Cybermen Games (Flash) (NEW!)