Prototypes by system/PC

3D Pinball: Space Cadet (Apr 26, 1995 prototype)

3D Pinball: Space Cadet (July 3, 1995 prototype)

3D Pinball: Space Cadet (June 12, 1995 prototype)

3D Pinball: Space Cadet (June 16, 1995 prototype)

3D Pinball: Space Cadet (June 27, 1995 prototype)

3D Pinball: Space Cadet (May 12, 1995 prototype)

3D Pinball: Space Cadet (May 26, 1995 prototype)

A.J.'s World of Discovery (Apr 5, 1993 prototype)

Age of Empires (Aug 15, 1997 prototype)

Age of Empires 2 - Age of Kings (Feb 22, 1999 prototype)

Age of Empires 2 - Age of Kings (Jul 17, 1998 prototype)

Age of Empires 2 - Age of Kings (July 1, 1999 prototype)

Age of Empires 2 - Age of Kings (June 2, 1999 prototype)

Age of Empires 2 - Age of Kings (June 30, 1999 prototype)

Age of Empires 2 - Age of Kings (May 13, 1999 prototype)

Age of Empires: The Rise of Rome (Aug 5, 1998 prototype)

Age of Empires: The Rise of Rome (Sep 15, 1998 prototype)

Aliens vs Predator (Jan 29, 1999 prototype)

Anachronox (May 13, 2001 Prototype)

Arcanum: Of Steamworks & Magick Obscura (Mar 14, 2001 demo)

Arcanum: Of Steamworks & Magick Obscura (Oct 9, 2000 prototype)

BIONICLE: The Legend of Mata Nui (Jul 24, 2001 prototype)

Battlecruiser 3000AD (Nov 8, 1995 prototype)

Beyond Divinity (Feb 26, 2004 demo)

Blood (Feb 17, 1996 prototype)

Blood (Jan 2, 1997 demo)

Blood (Jul 22, 1996 prototype)

Blood Omen: Legacy of Kain (Jul 10, 1999 prototype)

Blood Omen: Legacy of Kain (Mar 10, 1997 demo)

BloodRayne (Oct 22, 2002 prototype)

Command & Conquer: Red Alert (Oct 11, 1996 prototype)

Computer BattleTech (Jan 22, 1998 prototype)

Corridor 8 (prototype)

Counter-Strike - Global Offensive (Aug 8, 2011 prototype)

Counter-Strike - Global Offensive (Nov 29, 2011 prototype)

Counter-Strike: Condition Zero (Sep 24, 2003 prototype)

Crank the Weasel (Prototype)

Creation (Oct 26, 1995 demo)

Dead Island 2 (June 18, 2015 prototype)

Dead Justice (Sep 21, 2001 prototype)

Deus Ex (Jun 4, 2000 prototype)

Diablo II: Lord of Destruction (May, 2001 prototype)

Divine Divinity (Apr 8, 2002 demo)

Doom 3 (Jul 23, 2002 prototype)

Duke Nukem Forever (Aug 21, 2001 prototype)

Duke Nukem Forever (Nov 8, 1996 prototype)

Duke Nukem Forever (Oct 21, 1996 prototype)

Duke Nukem Forever (Oct 24, 1996 prototype)

Duke Nukem Forever (Oct 26, 2001 prototype)

Duke Nukem Forever (Oct 8, 1996 prototype)

Dungeon Siege (Jun 8, 2001 prototype)

Dungeon Siege II (Mar 22, 2005 prototype)

F.A. Premier League Stars (Nov 1, 1999 prototype)

F.A. Premier League Stars (Nov 23, 1999 prototype and source code)

F.A. Premier League Stars (Oct 12, 1999 prototype)

F.A. Premier League Stars 2001 (May 9, 2000 prototype)

Fallout 3 (Dec 9, 2003 prototype)

Far Cry (Feb 2, 2004 prototype)

Far Cry (Jan 11, 2004 prototype)

Far Cry (Jun 1, 2002 prototype)

Frogger (Jul 21, 1997 prototype)

Frogger (Jun 29, 1997 prototype)

Frogger (Sep 3, 1997 prototype)

Frogger 2: Swampy's Revenge (April 25, 2000 prototype)

Frogger 2: Swampy's Revenge (December 17, 1999 prototype)

Frogger 2: Swampy's Revenge (July 14, 2000 prototype)

Frogger 2: Swampy's Revenge (July 25, 2000 prototype)

Frogger 2: Swampy's Revenge (March 24, 2000 prototype)

Frogger 2: Swampy's Revenge (May 10, 2000 prototype)

Frogger 2: Swampy's Revenge (September 10, 1999 prototype)

Gee Whiz! Mystery Club (Jan 19, 1998 demo)

Gothic (Dec 21, 2000 prototype)

Gothic (Jan 31, 2001 demo)

Gothic Sequel (Oct 31, 2001 prototype)

Grand Theft Auto (Feb 2, 1995 prototype)

Grand Theft Auto (Nov 11, 1994 prototype)

Gunlok (Oct 12, 2000 prototype)

Half-Life (Dec 16, 1997 prototype)

Half-Life (Nov 1, 1998 prototype)

Half-Life (Oct 25, 1997 prototype)

Half-Life (Oct 26, 1998 demo)

Half-Life (Sep 1, 1998 demo)

Half-Life (Sep 18, 1998 demo)

Half-Life (Sep 27, 1998 demo)

Half-Life (Sep 4, 1997 prototype)

Half-Life 2 (Sep 26, 2003 prototype)

Half-Life: Opposing Force (Oct 18, 1999 Press Demo)

Halo 2 (Apr 9, 2007 prototype)

Halo: Combat Evolved (Jul 30, 2003 prototype)

Harry Potter and the Chamber of Secrets (Sep 6, 2002 prototype)

Heroes of Might and Magic III: The Restoration of Erathia (Feb 16, 1999 prototype)

Heroes of Might and Magic V (Jun 29, 2004 prototype)

Heroes of Might and Magic V (Oct 5, 2005 prototype)

Hexen (Sep 27, 1994 prototype)

Hot Wheels: World Race (May 12, 2003 prototype)

Hoyle Casino '99 (July 30, 1999 prototype)

Iron Angel (Sep 5, 1994 demo)

Juiced (Jun 2, 2004 prototype)

LEGO Football (Nov 16, 1998 prototype)

LEGO Island (July 25, 1997 prototype)

LMK: The Lady, the Mage and the Knight (Sep 6, 1998 prototype)

Legends of Might and Magic (Apr 18, 2001 demo)

Machines (Dec 30, 1998 prototype)

Made Man (July 16, 2006 prototype)

Magic & Mayhem: The Art of Magic (Sep 18, 2001 prototype)

Major Stryker (Aug 12, 1992 prototype)

Metro 2033 (May 10, 2006 prototype)

Might and Magic IX (Late 2001 Prototype)

Might and Magic VII: For Blood and Honor (Mar 24, 1999 prototype)

Might and Magic VII: For Blood and Honor (May 27, 1999 prototype)

Minecraft (February 3, 2010 prototype)

Minecraft (January 11, 2010 prototype)

Minecraft (June 27, 2010 prototype)

Minecraft (June 28, 2010 & June 30, 2010 prototype)

Minecraft (May 28, 2009 prototype)

Minecraft (October 24, 2009 prototype)

Modi i Nanna: Sprytne Smyki (Aug 27, 2002 demo)

Moontra Kid - Episode 1: Drug War (Jan 8, 2004 demo)

MotoGP (Feb 1, 2005 Italian Master)

MotoGP (Feb 1, 2005 Spanish Master)

MotoGP 2 (May 2, 2003 prototype)

MotoGP 3: Ultimate Racing Technology (Mar 16, 2004 prototype)

MotoGP 3: Ultimate Racing Technology (Mar 31, 2004 prototype)

NHL Hockey (Aug 4, 1993 prototype)

Need for Speed III: Hot Pursuit (Jun 15, 1998 prototype)

Need for Speed: ProStreet (Oct 19, 2007 prototype)

Nickelodeon Party Blast (Apr 22, 2002 prototype)

Nickelodeon Party Blast (Jan 11, 2002 prototype)

Nickelodeon Party Blast (Jul 18, 2002 prototype)

Oddworld: Abe's Oddysee (Oct 10, 1997 patch)

Overlord II (Apr 1, 2009 prototype)

Planetfall 2 (Jul 24, 1996 prototype)

Plants vs. Zombies (Dec 2, 2008 prototype)

Plants vs. Zombies (Feb 17, 2009 prototype)

Prey (Nov 9, 1995 prototype)

Project Overdrive (May 18, 2000 prototype)

Putty Squad (Amiga Prototype)

Quake (Jun 21, 1996 prototype)

Quake II (Oct 19, 1997 prototype)

Quake III: Arena (Apr 24, 1999 prototype)

Quake III: Arena (Apr 28, 1999 prototype)

Quake III: Arena (Aug 02, 1999 prototype)

Quake III: Arena (Feb 12, 1999 prototype)

Quake III: Arena (Jul 16, 1999 prototype)

Quake III: Arena (Jul 20, 1999 prototype)

Quake III: Arena (May 10, 1999 prototype)

Quake III: Arena (Nov 14, 1999 prototype)

Re-Volt (Apr 7, 1999 prototype)

Re-Volt (May 7, 1999 prototype)

Rebel Moon Revolution (Jan 15, 1999 prototype)

Return to Ringworld (April 16, 1994 Prototype)

Revenant (Jul 7, 1999 prototype)

Reverence (Nov 14, 1996 prototype)

Robot Wars: Arenas of Destruction (Dec 14, 2001 prototype)

Robot Wars: Arenas of Destruction (Jul 10, 2001 prototype)

Robot Wars: Arenas of Destruction (Jul 6, 2001 prototype)

Robot Wars: Arenas of Destruction (Jun 1, 2001 prototype)

Robot Wars: Arenas of Destruction (Jun 19, 2001 prototype)

Robot Wars: Arenas of Destruction (Jun 25, 2001 prototype - A)

Robot Wars: Arenas of Destruction (Jun 25, 2001 prototype)

Robot Wars: Arenas of Destruction (Jun 28, 2001 prototype)

Robot Wars: Arenas of Destruction (Jun 29, 2001 prototype)

Robot Wars: Arenas of Destruction (May 30, 2001 prototype)

Robot Wars: Arenas of Destruction (Nov 13, 2001 prototype)

Robot Wars: Arenas of Destruction (Oct 15, 2001 prototype)

Robot Wars: Arenas of Destruction (Oct 16, 2001 prototype)

Robot Wars: Arenas of Destruction (Oct 17, 2001 prototype)

Robot Wars: Arenas of Destruction (Oct 18, 2001 prototype - A)

Robot Wars: Arenas of Destruction (Oct 18, 2001 prototype)

Robot Wars: Arenas of Destruction (Oct 19, 2001 prototype)

Robot Wars: Arenas of Destruction (Oct 22, 2001 prototype - A)

Robot Wars: Arenas of Destruction (Oct 22, 2001 prototype)

Robot Wars: Arenas of Destruction (Oct 23, 2001 prototype)

Robot Wars: Arenas of Destruction (Oct 26, 2001 prototype)

Robot Wars: Arenas of Destruction (Oct 30, 2001 prototype)

Robot Wars: Arenas of Destruction (Oct 31, 2001 prototype)

Robot Wars: Extreme Destruction (Oct 22, 2002 prototype)

Robot Wars: Extreme Destruction (Oct 24, 2002 prototype)

Robot Wars: Extreme Destruction (Oct 25, 2002 prototype)

Robot Wars: Extreme Destruction (Oct 28, 2002 prototype)

S.T.A.L.K.E.R. 2 (Dec 7, 2011 prototype)

S.T.A.L.K.E.R.: Call of Pripyat (Aug 13, 2009 prototype)

S.T.A.L.K.E.R.: Call of Pripyat (Aug 14, 2009 prototype)

S.T.A.L.K.E.R.: Call of Pripyat (Jul 13, 2009 prototype)

S.T.A.L.K.E.R.: Call of Pripyat (Jul 22, 2009 prototype)

S.T.A.L.K.E.R.: Call of Pripyat (Jul 28, 2009 prototype)

S.T.A.L.K.E.R.: Clear Sky (Aug 19, 2007 prototype)

S.T.A.L.K.E.R.: Clear Sky (Jul 1, 2008 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Apr 15, 2005 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Apr 19, 2001 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Apr 25, 2005 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Aug 11, 2005 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Aug 18, 2006 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Aug 2, 2006 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Aug 20, 2003 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Aug 21, 2003 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Aug 27, 2001 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Aug 28, 2002 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Aug 9, 2004 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Dec 10, 2003 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Dec 16, 2003 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Dec 16, 2004 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Dec 17, 2002 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Dec 19, 2003 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Dec 3, 2003 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Dec 6, 2002 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Feb 10, 2004 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Feb 19, 2004 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Feb 19, 2007 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Feb 3, 2002 17:09 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Feb 3, 2002 17:20 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Feb 3, 2002 21:36 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Feb 3, 2004 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Feb 4, 2004 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Feb 9, 2004 14:55 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Feb 9, 2004 16:00 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Jan 22, 2005 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Jan 25, 2007 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Jan 26, 2004 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Jan 28, 2005 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Jul 15, 2003 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Jul 22, 2003 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Jul 27, 2005 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Jun 1, 2002 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Jun 13, 2005 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Jun 17, 2004 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Jun 25, 2004 15:22 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Jun 25, 2004 16:01 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Jun 26, 2001 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Mar 16, 2006 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Mar 5, 2003 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (May 12, 2003 01:02 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (May 12, 2003 11:27 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (May 19, 2002 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (May 4, 2006 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (May 8, 2004 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (May 9, 2003 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (May 9, 2004 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Nov 12, 2002 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Nov 15, 2002 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Nov 16, 2004 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Nov 23, 2004 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Nov 27, 2003 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Oct 15, 2003 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Oct 17, 2003 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Oct 18, 2004 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Oct 19, 2004 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Oct 28, 2003 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Oct 6, 2003 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Oct 8, 2004 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Sep 15, 2004 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Sep 24, 2004 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Sep 30, 2004 prototype)

S.T.A.L.K.E.R.: Shadow of Chernobyl (Sep 6, 2004 prototype)

Sabotage (Dec 13, 2002 demo)

Sacred (Jan 14, 2004 demo)

Sacred 2: Fallen Angel (Oct 10, 2008 prototype)

Serious Sam: The First Encounter (Dec 15, 2000 demo)

Serious Sam: The First Encounter (Jan 13, 2000 prototype)

Serious Sam: The First Encounter (Jan 14, 2000 prototype)

Serious Sam: The First Encounter (May 29, 2000 demo)

Shadow Man (Jun 17, 1997 prototype)

Shadow Man (Oct 5, 1999 prototype)

Shadow Vault (Mar 29, 2004 prototype)

Shattered Steel (Jun 20, 1996 demo)

Slave Zero (Apr 2, 1999 demo)

Sluice (Jan 16, 1996 prototype)

Sonic X-treme (PC Restoration and Asset Collection)

Sonic the Hedgehog CD (Sep 11, 1995 prototype)

Sonic the Hedgehog CD (Sep 18, 1995 prototype)

South Park (Jan 19, 1999 prototype)

South Park Rally (Aug 27, 1999 prototype)

South Park Rally (Dec 16, 1999 prototype)

South Park Rally (Dec 23, 1999 prototype)

South Park Rally (Feb 4, 2000 build)

South Park Rally (Nov 8, 1999 prototype)

South Park Rally (Sep 14, 1999 prototype)

South Park Rally (Sep 29, 1999 prototype)

South Park Rally (Sep 8, 1999 prototype)

South Park: Chef's Luv Shack (Nov 8, 1999 build)

Spirit of Speed 1937 (Oct 20, 1999 prototype)

Spirit of Speed 1937 (Oct 25, 1999 prototype)

Spirit of Speed 1937 (Sep 27, 1999 prototype)

Spirit of Speed 1937 (Sep 30, 1999 prototype)

Spyro's Kingdom (prototype)

Star Trek: Deep Space Nine: The Fallen (Oct 26, 2000 prototype)

Star Wars Galaxies: An Empire Divided (Mar 14, 2003 prototype)

Starship Titanic (Feb 3, 1998 prototype)

Starsiege (Aug 26, 1998 prototype)

Starsiege (Dec 11, 1998 prototype)

Starsiege (Jan 11, 1999 prototype)

Starsiege (Jul 31, 1998 prototype)

Starsiege (Nov 13, 1998 prototype)

Starsiege (Oct 28, 1998 prototype)

Starsiege (Oct 7, 1998 prototype)

Starsiege (Sep 18, 1998 prototype)

Surf and Destroy (Oct 28, 1996 demo)

Tears (Sep 21, 1995 demo)

Tears (Sep 5, 1997 demo)

The Incredible Shrinking Character Demo

The Sacred Pools (June 16, 1997 prototype)

The Settlers III (May 12, 1998 rolling demo)

The Simpsons: Hit & Run (Sep 13, 2003 prototype - Debug)

The Simpsons: Hit & Run (Sep 13, 2003 prototype - Release)

Them's Fightin' Herds (July 14, 2012 Prototype)

Theme Park Inc (Dec 4, 2000 prototype)

Thief II: The Metal Age (Nov 4, 1999 prototype)

Tides of War (Mar 12, 1998 prototype)

Tomb Raider (May 7, 1996 prototype)

Tomb Raider (Sep 4, 1996 prototype)

Tomb Raider (Technical Demo)

Tony Hawk's Pro Skater 2 (Jun 16, 2000 prototype)

Toontown Online (prototype)

TreasureBear (Flash Demo V4)

Treasurebear (Kickstarter Demo)

Trespasser: Jurassic Park (July 27, 1998 prototype)

Trespasser: Jurassic Park (Jun 16, 1998 prototype)

Trespasser: Jurassic Park (May 27, 1998 prototype B)

Trespasser: Jurassic Park (May 27, 1998 prototype)

Trespasser: Jurassic Park (Oct 11, 1998 prototype)

Trespasser: Jurassic Park (Sep 21, 1998 prototype)

Trespasser: Jurassic Park (Sep 22, 1998 prototype)

Trespasser: Jurassic Park (Sep 24, 1998 prototype)

Trespasser: Jurassic Park (Sep 28, 1998 prototype)

Turok 2: Seeds of Evil (Feb 10, 1999 demo)

Turok: Dinosaur Hunter (Aug 12, 1997 prototype)

Turok: Dinosaur Hunter (Jul 21, 1997 prototype)

Unreal (Aug 3, 1997 prototype)

Unreal (Dec 10, 1996 prototype)

Unreal (Dec 5, 1995 prototype)

Unreal (Feb 8, 1998 prototype)

Unreal (Jun 17, 1997 prototype)

Unreal (Jun 18, 1997 prototype)

Unreal (May 24, 1997 prototype)

Unreal (Nov 18, 1997 prototype)

Unreal (Oct 18, 1996 prototype)

Unreal (Oct 3, 1996 prototype)

Unreal (Sep 8, 1997 prototype)

Unreal 1995 Tech Demo

Uprising: Join or Die (July 28, 1997 prototype)

Urban Assault (Apr 9, 1998 prototype - A)

Urban Assault (Apr 9, 1998 prototype - B)

Urban Assault (Apr 9, 1998 prototype)

Urban Assault (Aug 17, 1998 prototype with source code)

Urban Assault (Jul 9, 1998 prototype - A)

Urban Assault (Jul 9, 1998 prototype - B)

Urban Assault (Jul 9, 1998 prototype)

Urban Chaos (May 5, 1999 prototype)

Urban Chaos (Nov 1, 1999 prototype)

Urban Chaos (Nov 23, 1999 prototype)

Vampire Wars (Dec 10, 1997 prototype)

Video/Nickelodeon Party Blast (January 5, 2002 Model Viewer)

Warcraft Adventures: Lord of the Clans (Feb 16, 1998 prototype)

Warhammer 40.000: Agents of Death (Sep 10, 2000 prototype)

World League Soccer '98 (Mar 16, 1998 prototype)

Wreckin Crew (ECTS 1997 prototype)

XIII (Jul 23, 2002 Prototype)

Youngblood: Search and Destroy (Aug 1, 1997 Demo)

Youngblood: Search and Destroy (July 30, 1997 Demo)

Zamolxe (Dec 3, 2001 prototype)

Zoo Tycoon (Jun 11, 2001 prototype)

Zoo Tycoon (Jun 29, 2001 prototype)

Zoo Tycoon (May 10, 2001 prototype)

Zoo Tycoon 2 (Jul 16, 2004 prototype)

Zoo Tycoon 2 (Oct 8, 2004 prototype)