| SCEE Software 2002 | | PlayStation 2 | | |
| SOCOM 4: U.S. Navy SEALs Cache Files | | PlayStation 3 | | |
| Asset Disk | | Other | | |
| San Diego Third Party Product Review April 2002 | | Unknown | | |
| Manual Sources | | PC | | |
| European Tour 2005 | | PlayStation 2 | | |
| Press Kit | | Unknown | | |
| Asset Disc | | Other | | |
| Generated Data | | PlayStation 3 | | |
| Press Kit | | PlayStation 2 | | |
| Leftover prototype | | PlayStation 3 | | |
| Hi-Res Disc July 99 | | PlayStation | | |
| Press Disc July 99 | | PlayStation | | |
| Spyro and Crash Fusion Code and Emulator | | Game Boy Advance | | |
| PAL Press CD | | PlayStation | | |
| StarCraft II: Wings of Liberty Launch Press Kit | | PC | | |
| GDD v.1.5 BD 9-25-2007 | | Other | | |
| Unity NP Toolkit Plugin Extension Source Code | | PlayStation 4 | | |
| Level Pack | | Game Boy Color | | |
| Take-Two Interactive: 2001 EPK: Electronic Press Kit | | Other | | |
| Tales from the Borderlands Old Assets | | Other | | |
| Tekken: Dark Resurrection Press Disk | | PlayStation Portable | | |
| Press Disc | | Other | | |
| The Bouncer Press Disc | | PlayStation 2 | | |
| Interactive Demonstration | | Unknown | | |
| The Fight: Lights Out Assets | | PlayStation 3 | | |
| Press Disc | | PlayStation 2 | | |
| Press Disk | | PlayStation 2 | | |
| The House of the Dead: Overkill Announcement Asset Disk | | Nintendo Wii | | |
| Game Boy and NES source code | | NES | | |
| PR Asset Discs | | PlayStation 2 | | |
| Press Assets 2003 | | PlayStation 2 | | |
| The Sims 2 Exclusive Woolworths Preview Disc | | Other | | |
| Leftover Jul 20, 2010 Data | | Xbox 360 | | |
| Art Disk | | Other | | |
| PS2 Character Art | | PlayStation 2 | | |
| PS2 Screenshots | | PlayStation 2 | | |
| Source Code | | Other | | |
| GBA Source Code | | Game Boy Advance | | |
| Art Disc | | PlayStation | | |
| Uncharted 2: Among Thieves Media Disk | | PlayStation 3 | | |
| Uncharted: Drake’s Fortune Press Disk | | PlayStation 3 | | |
| Universal Interactive Studios Confidential Asset Disc | | PlayStation 2 | | |
| Unreal II: eXpanded MultiPlayer Source Code | | Other | | |
| Press Disc | | Other | | |
| August 2000 Press Kit | | PlayStation | | |
| May 22, 2000 Press CD | | PlayStation | | |
| WRC II Extreme Press Materials September 2002 | | PlayStation 2 | | |
| Disc CD | | PlayStation 2 | | |
| Press Disc | | PlayStation 3 | | |
| Artwork Materials | | PlayStation | | |
| Asset CD | | Xbox | | |
| Xbox 360 + Games for Windows - Press Kit - Games Convention 2007 | | Other | | |
| Zenith Design & Report Documents (1995-1996) | | PC | | |
| Asterix & Obelix XXL (Feb 25, 2004 prototype) | | Nintendo GameCube | | |
| Asterix & Obelix XXL (Prototype A) | | Game Boy Advance | | |
| Asterix & Obelix XXL (Prototype B) | | Game Boy Advance | | |
| Asterix (Feb 16, 1994 prototype) | | Game Gear | | |
| Asterix (Feb 22, 1994 prototype) | | Game Gear | | |
| Asterix (Jan 25, 1994 prototype) | | Game Gear | | |
| Asterix (Jul 27, 1983 prototype) | | Atari 2600 | | |
| Asterix (Localization prototype) | | Game Boy | | |
| Asterix (Mar 11, 1993 prototype) | | SNES | | |
| Asterix (Mar 15, 1994 prototype) | | Game Gear | | |
| Asterix (Mar 16, 1994 prototype) | | Game Gear | | |
| Asterix (Mar 3, 1994 prototype) | | Game Gear | | |
| Asterix (Prototype A) | | Game Boy | | |
| Asterix (Prototype B) | | Game Boy | | |
| Asteroids & Deluxe (Oct 3, 2007 prototype) | | Xbox 360 | | |
| Asteroids (Atari 5200 prototype) | | Atari 5200 | | |
| Asteroids (Atari 7800 prototype) | | Atari 7800 | | |
| Asteroids (Aug 12, 1982 prototype) | | Atari 5200 | | |
| Asteroids (Game Boy Prototype) | | Game Boy | | |
| Asteroids 2000 (Jul 20, 1994 prototype) | | Atari Jaguar | | |
| Astro Boy: The Video Game (Jul 27, 2009 prototype) | | Nintendo Wii | | |
| Astro Chase (Oct 25, 1983 prototype) | | Atari 2600 | | |
| Astro Warrior & Pit Pot (Prototype) | | Sega Master System | | |
| AstroPop (Feb 22, 2006 prototype) | | Xbox 360 | | |
| Astrocade (Aug 1, 1994 prototype) | | Sega Saturn | | |
| Astropop (Unknown prototype) | | Xbox 360 | | |
| Astérix & Obélix XXL 2: Mission: Las Vegum (Feb 25, 2005 prototype) | | PlayStation 2 | | |
| Asura's Wrath (Dec 2, 2011 prototype) | | PlayStation 3 | | |
| AtSimple DS Series Vol. 1: The Misshitsu kara no Dasshutsu (prototype) | | Nintendo DSi | | |
| Atari Classics Evolved (Oct 1, 2007 prototype) | | PlayStation Portable | | |
| Atari Classics Evolved (Oct 31, 2007 prototype) | | PlayStation Portable | | |
| Atari Karts (Prototype) | | Atari Jaguar | | |
| Atelier Iris 2: The Azoth of Destiny (Feb 7, 2006 prototype) | | PlayStation 2 | | |
| Atelier Iris 2: The Azoth of Destiny (Mar 6, 2006 prototype) | | PlayStation 2 | | |
| Atelier Iris: Eternal Mana (Apr 8, 2005 prototype) | | PlayStation 2 | | |
| Atelier Iris: Eternal Mana (May 12, 2005 prototype) | | PlayStation 2 | | |
| Athens 2004 (Apr 14, 2004 prototype) | | PlayStation 2 | | |
| Athletic Piggy Party (Apr 21, 2008 prototype) | | Nintendo Wii | | |
| Athletic Piggy Party (Apr 23, 2008 prototype) | | Nintendo Wii | | |
| Athletic Piggy Party (Apr 24, 2008 16.44 prototype) | | Nintendo Wii | | |
| Athletic Piggy Party (Apr 24, 2008 prototype) | | Nintendo Wii | | |
| Athletic Piggy Party (Apr 25, 2008 prototype) | | Nintendo Wii | | |
| Athletic Piggy Party (May 8, 2008 16.57 prototype) | | Nintendo Wii | | |
| Athletic Piggy Party (May 8, 2008 prototype) | | Nintendo Wii | | |
| Atlantis no Nazo (Prototype) | | NES | | |
| Atmosfear (Jul 12, 1994 prototype) | | SNES | | |
| Atom Smasher (prototype) | | Atari 2600 | | |
| Atomic Betty (Prototype) | | Game Boy Advance | | |
| Austin Powers: Why Make Millions... (Sep 2, 2000 prototype) | | Game Boy Color | | |
| Austin Powers: Yeah, Baby, Yeah! (Sep 11, 2000 prototype) | | Game Boy Color | | |
| Australian Rugby League (Prototype) | | Sega Mega Drive | | |
| Auto Destruct (Oct 15, 1997 prototype) | | PlayStation | | |
| Avatar Superstars Poker (Jul 31, 2010 prototype) | | Xbox 360 | | |
| Avatar: The Last Airbender (Jul 10, 2007 prototype) | | Nintendo DS | | |
| Avatar: The Last Airbender - The Burning Earth (Jul 20, 2007 prototype) | | Xbox 360 | | |
| Awesome Possum Kicks Dr. Machino's Butt! (CENSOR Prototype A) | | Sega Mega Drive | | |
| Awesome Possum Kicks Dr. Machino's Butt! (CENSOR Prototype B) | | Sega Mega Drive | | |
| Awesome Possum Kicks Dr. Machino's Butt! (Jul 12, 1993 prototype) | | Sega Mega Drive | | |
| Awesomenauts (Nov 9, 2011 prototype) | | Xbox 360 | | |
| Ax Battler: A Legend of Golden Axe (Oct 8, 1991 prototype) | | Game Gear | | |
| Axel & Pixel (Oct 3, 2009 prototype) | | Xbox 360 | | |
| Ayrton Senna's Super Monaco GP II (Prototype) | | Game Gear | | |
| Azure Dreams (Apr 23, 1998 prototype) | | PlayStation | | |
| Azure Dreams (Jan 13, 1998 prototype) | | PlayStation | | |
| B Team - Episode 1: Dust & Steel (Jun 2, 2011 prototype) | | Nintendo DSi | | |
| B Team - Episode 2: Ice & Venom (May 5, 2011 prototype) | | Nintendo DSi | | |
| B-17: Fortress in the Sky (Prototype) | | Nintendo DS | | |
| B-Boy (Jul 31, 2006 prototype) | | PlayStation 2 | | |
| B-Boy (May 29, 2006 prototype) | | PlayStation 2 | | |
| B.C. Kid 2 (Game Boy prototype) | | Game Boy | | |
| B.O.B. (Prototype) | | Sega Mega Drive | | |
| BBC Learning RAW Numbers (prototype) | | Nintendo DS | | |
| BC Racers (April 11, 1995 Prototype) | | Sega 32X | | |
| BC Racers (Sep 29, 1995 Prototype) | | 3DO | | |
| BIONICLE: The Legend of Mata Nui (Jul 24, 2001 prototype) | | PC | | |
| BIONICLE: The Legend of Mata Nui (Oct 23, 2001 prototype) | | PC | | |
| BIT.TRIP Presents: Runner2: Future Legend of Rhythm Alien (Jan 23, 2013 prototype) | | Xbox 360 | | |
| BMX 4 (Nov 8, 2002 prototype) | | Xbox | | |
| BMX XXX (Oct 29, 2002 prototype) | | PlayStation 2 | | |
| BMX XXX (Oct 9, 2002 prototype) | | PlayStation 2 | | |
| BPS®: The Hunt (DLC Bonus Gear In-Game Content prototype) | | Xbox 360 | | |
| Baby Boom (Aug 11, 1994 prototype) | | Sega Mega Drive | | |
| Baby Boom (Jun 3, 1994 prototype) | | Sega Mega Drive | | |
| Baby Boom (Jun 6, 1994 prototype) | | Sega Mega Drive | | |
| Baby's Day Out (Game Boy prototype) | | Game Boy | | |
| Baby's Day Out (NAPALM prototype) | | Sega Mega Drive | | |
| Baby's Day Out (SNEAKERS prototype) | | Sega Mega Drive | | |
| Back 4 Blood (Jul 3, 2021 prototype) | | Xbox One | | |
| Back To Bed (July 20, 2015 Prototype) | | PlayStation Vita | | |
| Back at the Barnyard: Slop Bucket Games (Jun 2, 2008 prototype) | | Nintendo DS | | |
| Back at the Barnyard: Slop Bucket Games (Jun 20, 2008 prototype) | | Nintendo DS | | |
| Back at the Barnyard: Slop Bucket Games (Jun 30, 2008 prototype) | | Nintendo DS | | |
| Back at the Barnyard: Slop Bucket Games (Mar 20, 2008 prototype) | | Nintendo DS | | |
| Back at the Barnyard: Slop Bucket Games (May 5, 2008 prototype) | | Nintendo DS | | |
| Back to Stone (Prototype) | | Game Boy Advance | | |
| Backbreaker (DLC Test Stadium Pack 2 prototype) | | Xbox 360 | | |
| Backbreaker (DLC Test prototype) | | Xbox 360 | | |
| Backbreaker (Nov 11, 2009 prototype) | | Xbox 360 | | |
| Backbreaker (Nov 27, 2009 prototype) | | Xbox 360 | | |
| Backbreaker: Vengeance (May 26, 2011 prototype) | | Xbox 360 | | |
| Backstreet Billiards (Sep 7, 1998 prototype) | | PlayStation | | |
| Backup LIB sample (1.04) | | Game Boy Advance | | |
| Backyard Heroes (Sep 30, 2013 prototype) | | Xbox 360 | | |
| Backyard Wrestling 2: There Goes the Neighborhood (Jul 27, 2004 prototype) | | PlayStation 2 | | |
| Backyard Wrestling: Don't Try This at Home (Jul 13, 2003 prototype) | | PlayStation 2 | | |
| Backyard Wrestling: Don't Try This at Home (Jul 14, 2003 prototype) | | Xbox | | |
| Bad News Baseball (Prototype) | | NES | | |
| Baja Mania (Dec 14, 2006 prototype) | | PlayStation 2 | | |
| Baja Mania (Sep 25, 2006 prototype) | | PC | | |
| Baja: Edge of Control (Aug 3, 2008 prototype) | | Xbox 360 | | |
| Baja: Edge of Control (Jul 26, 2008 DLC Back Pack prototype) | | Xbox 360 | | |
| Baja: Edge of Control (Jul 26, 2008 DLC Skin Pack prototype) | | Xbox 360 | | |
| Baja: Edge of Control (May 27, 2008 prototype) | | Xbox 360 | | |
| Baku Baku Animal: World Zookeeper Contest (Apr 26, 1996 prototype) | | Sega Saturn | | |
| Bakuryu (Nov 27, 1999 prototype) | | PlayStation | | |
| Bakushou!! Jinsei Gekijou (Early prototype) | | NES | | |
| Bakushou!! Jinsei Gekijou (Oct 13, 1988 prototype) | | NES | | |
| Baldur's Gate (Oct 4, 2000 prototype) | | PlayStation | | |
| Baldur's Gate 3 (Oct 2, 2020 prototype) | | PC | | |
| Baldur's Gate: Dark Alliance (Jun 22, 2002 prototype) | | Xbox | | |
| Baldur's Gate: Dark Alliance (Oct 14, 2002 prototype) | | Nintendo GameCube | | |
| Baldur's Gate: Dark Alliance (Oct 7, 2001 prototype) | | PlayStation 2 | | |
| Ball Breakers (Oct 24, 2000 prototype) | | Dreamcast | | |
| Ball-Job (prototype) | | Commodore 64 | | |
| Ballz 3D: Fighting at Its Ballziest (Japanese Prototype) | | SNES | | |
| Ballz 3D: Fighting at Its Ballziest (Prototype) | | SNES | | |
| Ballz 3D: Fighting at its Ballziest (June prototype) | | Sega Mega Drive | | |
| Ballz 3D: Fighting at its Ballziest (September build) | | Sega Mega Drive | | |
| Baltron (prototype) | | NES | | |
| Banana (Earlier prototype) | | NES | | |
| Banana (Jun 30, 1986 prototype) | | NES | | |
| Band of Bugs (DLC Map Pack 1 prototype) | | Xbox 360 | | |
| Band of Bugs (DLC Map Pack 2 prototype) | | Xbox 360 | | |
| Bang Bang Racing (Oct 26, 2011 prototype) | | Xbox 360 | | |
| Bangai-O (Apr 14, 2000 prototype) | | Dreamcast | | |
| Bangai-O HD: Missile Fury (Dec 14, 2010 prototype) | | Xbox 360 | | |
| Banjo-Kazooie (December 16, 1997 debug disk A) | | Nintendo 64DD | | |
| Banjo-Kazooie (December 16, 1997 debug disk B) | | Nintendo 64DD | | |
| Banjo-Kazooie (Sep 10, 2008 prototype) | | Xbox 360 | | |
| Banjo-Kazooie: Grunty's Revenge (0.37.08 prototype) | | Game Boy Advance | | |
| Banjo-Kazooie: Grunty's Revenge (0.40.58 debug prototype) | | Game Boy Advance | | |
| Banjo-Kazooie: Nuts & Bolts (Sep 18, 2008 prototype) | | Xbox 360 | | |
| Banjo-Pilot (Sep 29, 2004 prototype) | | Game Boy Advance | | |
| Banjo-Pilot (Voxel prototype) | | Game Boy Advance | | |
| Bankshot Billiards 2 (Jan 18, 2007 prototype) | | Xbox 360 | | |
| Bankshot Billiards 2 (Mar 1, 2007 prototype) | | Xbox 360 | | |
| Barbarian (Apr 13, 2001 GBA prototype) | | Game Boy Advance | | |
| Barbarian (Jul 24, 2001 prototype) | | PlayStation 2 | | |
| Barbarian (Jun 20, 2001 GBA prototype) | | Game Boy Advance | | |
| Barbie & Her Sisters: Puppy Rescue (Aug 31, 2015 prototype) | | Nintendo 3DS | | |
| Barbie & Her Sisters: Puppy Rescue (Jun 10, 2015 prototype) | | Nintendo 3DS | | |
| Barbie & Her Sisters: Puppy Rescue (Sep 23, 2015 prototype) | | Xbox 360 | | |
| Barbie & Her Sisters: Puppy Rescue (Sep 7, 2015 Prototype) | | Xbox 360 | | |
| Barbie Super Model (Jun 30, 1993 prototype) | | Sega Mega Drive | | |
| Barbie Super Model (Prototype) | | Game Gear | | |
| Barbie and the Magic of Pegasus (Apr 15, 2005 prototype) | | Game Boy Advance | | |
| Barbie and the Magic of Pegasus (Feb 18, 2005 prototype) | | Game Boy Advance | | |
| Barbie and the Magic of Pegasus (Jan 21, 2005 prototype) | | Game Boy Advance | | |
| Barbie and the Magic of Pegasus (Mar 18, 2005 prototype) | | Game Boy Advance | | |
| Barbie: Game Girl (Prototype) | | Game Boy | | |
| Barbie: Groom and Glam Pups (Prototype) | | Nintendo DS | | |
| Barbie: Jet, Set & Style (Prototype) | | Nintendo DS | | |
| Barbie: Vacation Adventure (Prototype) | | Sega Mega Drive | | |
| Barbie: Vacation Adventure (SNES Prototype) | | SNES | | |
| Barnyard (Prototype) | | Game Boy Advance | | |
| Barotrauma (Sep 6, 2019 prototype) | | PC | | |
| Bases Loaded (Dec 16, 1987 prototype) | | NES | | |
| Bashi Bazook: Morphoid Masher (May 29, 1989 prototype) | | NES | | |
| Basketball Nightmare (Prototype A) | | Sega Master System | | |
| Basketball Nightmare (Prototype B) | | Sega Master System | | |
| Bass Circuit Pro (May 4, 2003 prototype) | | Xbox | | |
| Bass Landing (Aug 5, 1999 prototype) | | PlayStation | | |
| Bass Masters 2000 (Prototype) | | Nintendo 64 | | |
| Bastion (prototype A) | | Xbox 360 | | |
| Bastion (prototype B) | | Xbox 360 | | |
| Batman & Robin (Jun 8, 1998 prototype) | | PlayStation | | |
| Batman (Aug 1989 prototype) | | NES | | |
| Batman (Earlier prototype) | | NES | | |
| Batman (Software Creations prototype) | | SNES | | |
| Batman (US prototype) | | Sega Mega Drive | | |
| Batman Begins (May 1, 2005 prototype) | | Nintendo GameCube | | |
| Batman Forever (NAPALM prototype) | | SNES | | |
| Batman Forever: The Arcade Game (Oct 28, 1996 prototype) | | PC | | |
| Batman Returns (Apr 23, 1993 prototype) | | Sega CD | | |
| Batman Returns (PAL prototype) | | NES | | |
| Batman Returns (SNES prototype) | | SNES | | |
| Batman: Arkham Asylum (Feb 13, 2009 DLC Prey in the Darkness Map Pack prototype) | | Xbox 360 | | |
| Batman: Arkham Asylum (Feb 14, 2009 A DLC Prey in the Darkness Map Pack prototype) | | Xbox 360 | | |
| Batman: Arkham Asylum (Feb 14, 2009 B DLC Prey in the Darkness Map Pack prototype) | | Xbox 360 | | |
| Batman: Arkham Asylum (prototype) | | Nintendo DS | | |
| Batman: Arkham City (Sep 6, 2011 DLC Catwoman Bundle Pack prototype) | | Xbox 360 | | |
| Batman: Arkham City (Sep 6, 2011 DLC Nightwing Bundle Pack prototype) | | Xbox 360 | | |
| Batman: Arkham City (Sep 6, 2011 DLC Robin Bundle Pack prototype) | | Xbox 360 | | |
| Batman: Arkham City (Sep 6, 2011 DLC Skins Pack prototype) | | Xbox 360 | | |
| Batman: Arkham City (Sep 6, 2011 DLC The Joker’s Carnival Challenge Map prototype) | | Xbox 360 | | |
| Batman: Arkham Knight (Jun 21, 2015 prototype) | | PC | | |
| Batman: Arkham Knight (May 26, 2015 prototype) | | PC | | |
| Batman: Arkham Origins (Apr 15, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Apr 17, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Apr 25, 2013 prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Aug 1, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Aug 10, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Aug 13, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Aug 14, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Aug 15, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Aug 16, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Aug 16, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Aug 17, 2012 03.25 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Aug 17, 2012 13.05 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Aug 18, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Aug 19, 2013 16.53 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Aug 19, 2013 18.50 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Aug 2, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Aug 24, 2013 19.41 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Aug 24, 2013 23.40 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Aug 29, 2013 03.15 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Aug 29, 2013 14.44 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Aug 3, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Aug 7, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Aug 8, 2013 01.58 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Aug 8, 2013 23.38 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Aug 9, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Dec 11, 2012 00.34 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Dec 11, 2012 12.26 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Dec 11, 2012 14.15 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Dec 11, 2012 16.09 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Dec 11, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Dec 12, 2012 09.25 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Dec 12, 2012 11.13 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Dec 12, 2012 13.02 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Dec 12, 2012 15.30 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Dec 12, 2012 18.15 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Dec 13, 2012 01.22 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Dec 13, 2012 B Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Dec 13, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Dec 15, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Dec 17, 2012 12.29 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Dec 17, 2012 14.18 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Dec 18, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Dec 3, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Dec 5, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Dec 6, 2012 01.32 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Dec 6, 2012 13.03 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Dec 6, 2012 prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Dec 7, 2012 10.20 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Dec 7, 2012 16.14 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Feb 1, 2013 prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Feb 14, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Jan 20, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Jan 30, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Jul 13, 2012 15.45 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Jul 13, 2012 18.52 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Jul 14, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Jul 16, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Jul 16, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Jul 2, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Jul 23, 2013 prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Jul 9, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Jun 1, 2013 04.06 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Jun 12, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Jun 13, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Jun 15, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Jun 17, 2013 Multiplayer B prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Jun 17, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Jun 18, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Jun 18, 2013 02.32 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Jun 18, 2013 20.26 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Jun 22, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Jun 25, 2012 10.39 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Jun 25, 2012 12.38 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Jun 25, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Jun 26, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Jun 4, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Jun 8, 2013 03.25 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Jun 8, 2013 13.57 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Mar 1, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Mar 11, 2013 16.02 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Mar 11, 2013 18.55 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Mar 11, 2013 21.28 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Mar 12, 2013 11.59 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Mar 12, 2013 13.28 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Mar 13, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Mar 14, 2013 07.18 prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Mar 14, 2013 14.59 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Mar 15, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Mar 2, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (May 10, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (May 11, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (May 14, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (May 15, 2013 12.20 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (May 15, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (May 16, 2013 00.33 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (May 16, 2013 16.14 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (May 2, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (May 23, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (May 30, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (May 31, 2013 12.38 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (May 31, 2013 12.56 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (May 31, 2013 20.03 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (May 8, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (May 9, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Nov 1, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Nov 11, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Nov 14, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Nov 15, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Nov 16, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Nov 2, 2012 15.58 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Nov 2, 2012 17.42 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Nov 2, 2012 19.58 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Nov 2, 2012 21.33 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Nov 21, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Nov 22, 2013 Multiplayer prototype) | | PlayStation 3 | | |
| Batman: Arkham Origins (Nov 23, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Nov 3, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Nov 4, 2012 17.05 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Nov 4, 2012 18.36 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Nov 4, 2012 21.28 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Nov 5, 2012 12.05 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Nov 5, 2012 13.43 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Nov 5, 2012 16.10 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Nov 5, 2012 19.22 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Nov 6, 2012 10.30 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Nov 6, 2012 12.14 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Nov 6, 2012 12.15 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Nov 6, 2012 12.59 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Nov 7, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Nov 8, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Oct 11, 2012 Disc Swap Test prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Oct 16, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Oct 18, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Oct 5, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Oct 8, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 10, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 11, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 12, 2013 17.05 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 12, 2013 19.49 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 15, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 17, 2012 03.59 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 17, 2012 06.42 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 17, 2012 11.47 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 17, 2012 13.42 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 19, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 2, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 20, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 21, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 23, 2013 18.59 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 23, 2013 23.44 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 27, 2012 12.41 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 27, 2012 13.41 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 3, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 30, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 4, 2013 02.46 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 4, 2013 17.45 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 5, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 6, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 7, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 8, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 9, 2013 Multiplayer Xbox 360 prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 9, 2013 Multiplayer prototype) | | PlayStation 3 | | |
| Batman: Arkham Origins Blackgate (May 30, 2013 Prototype) | | PlayStation Vita | | |
| Batman: Dark Tomorrow (Aug 25, 2002 prototype) | | Nintendo GameCube | | |
| Batman: Dark Tomorrow (Feb 26, 2003 prototype) | | Xbox | | |
| Batman: Return of the Joker (Prototype) | | NES | | |
| Batman: Revenge of the Joker (Prototype) | | SNES | | |
| Batman: Rise of Sin Tzu (Aug 15, 2003 prototype) | | PlayStation 2 | | |
| Batman: Vengeance (Aug 29, 2001 prototype) | | PlayStation 2 | | |
| Battle (prototype) | | Commodore 64 | | |
| Battle Arena Toshinden URA (Nov 7, 1996 prototype) | | Sega Saturn | | |
| Battle Assault 3 featuring Gundam Seed (Aug 1, 2004 prototype) | | PlayStation 2 | | |
| Battle Assault 3 featuring Gundam Seed (Aug 13, 2004 prototype) | | PlayStation 2 | | |
| Battle Assault 3 featuring Gundam Seed (Aug 19, 2004 prototype) | | PlayStation 2 | | |
| Battle Assault 3 featuring Gundam Seed (Aug 27, 2004 prototype) | | PlayStation 2 | | |
| Battle Assault 3 featuring Gundam Seed (Aug 31, 2004 prototype) | | PlayStation 2 | | |
| Battle Assault 3 featuring Gundam Seed (Jul 19, 2004 prototype) | | PlayStation 2 | | |
| Battle Assault 3 featuring Gundam Seed (Sep 10, 2004 prototype) | | PlayStation 2 | | |
| Battle Assault 3 featuring Gundam Seed (Sep 13, 2004 prototype) | | PlayStation 2 | | |
| Battle Assault 3 featuring Gundam Seed (Sep 17, 2004 prototype) | | PlayStation 2 | | |
| Battle Assault 3 featuring Gundam Seed (Sep 8, 2004 prototype) | | PlayStation 2 | | |
| Battle Ball (prototype A) | | Commodore 64 | | |
| Battle Ball (prototype B) | | Commodore 64 | | |
| Battle Ball (prototype C) | | Commodore 64 | | |
| Battle Ball (prototype D) | | Commodore 64 | | |
| Battle Battle League (1992 prototype) | | FDS | | |
| Battle Blaze (Prototype A) | | SNES | | |
| Battle Blaze (Prototype B) | | SNES | | |
| Battle Fantasia (Apr 9, 2008 prototype) | | Xbox 360 | | |
| Battle Master: Kyuukyoku no Senshi-tachi (Prototype) | | SNES | | |
| Battle Out Run (Prototype) | | Sega Master System | | |
| Battle Rage: Mech Conflict (Feb 5, 2009 prototype) | | Nintendo Wii | | |
| Battle Ships (Prototype) | | Game Boy | | |
| Battle Wings (Prototype) | | Sega Master System | | |
| Battle vs. Chess (Feb 6, 2012 prototype) | | PlayStation Portable | | |
| Battle: Los Angeles (Feb 14, 2011 prototype) | | Xbox 360 | | |
| Battle: Los Angeles (Feb 18, 2011 prototype) | | Xbox 360 | | |
| Battle: Los Angeles (Feb 28, 2011 prototype) | | Xbox 360 | | |
| Battle: Los Angeles (Feb 7, 2011 prototype) | | Xbox 360 | | |
| Battle: Los Angeles (Jan 31, 2011 prototype) | | Xbox 360 | | |
| BattleBlock Theater (Feb 6, 2013 prototype) | | Xbox 360 | | |
| BattleBots (Alpha 4.6 prototype) | | Nintendo GameCube | | |
| BattleSport (May 11, 1995 prototype) | | 3DO | | |
| BattleSport (Sep 22, 1995 prototype) | | 3DO | | |
| Battlecorps (Feb 11, 1994 prototype) | | Sega CD | | |
| Battlefield 1943 (Jun 24, 2009 prototype) | | Xbox 360 | | |
| Battlefield 1943 (Jun 3, 2009 prototype) | | Xbox 360 | | |
| Battlefield 1943 (Mar 18, 2009 prototype) | | PlayStation 3 | | |
| Battlefield 1943 (May 13, 2009 prototype) | | Xbox 360 | | |
| Battlefield 1943 (May 26, 2009 prototype) | | Xbox 360 | | |
| Battlefield 2: Modern Combat (Aug 15, 2005 prototype) | | PlayStation 2 | | |
| Battlefield 2: Modern Combat (Aug 17, 2005 prototype) | | Xbox | | |
| Battlefield 2: Modern Combat (Feb 14, 2006 EU prototype) | | Xbox 360 | | |
| Battlefield 2: Modern Combat (Feb 14, 2006 USA prototype) | | Xbox 360 | | |
| Battlefield 2: Modern Combat (Sep 17, 2005 prototype) | | PlayStation 2 | | |
| Battlefield 3 (Aug 8, 2011 USA Multiplayer prototype) | | PlayStation 3 | | |
| Battlefield 3 (DLC HD Texture Pack prototype) | | Xbox 360 | | |
| Battlefield 3 (Jan 25, 2013 Patch Data prototype) | | PlayStation 3 | | |
| Battlefield 3 (Oct 1, 2011 prototype) | | PlayStation 3 | | |
| Battlefield 4 (Jun 24, 2013 Multiplayer prototype) | | PC | | |
| Battlefield 4 (Oct 14, 2013 prototype) | | PlayStation 3 | | |
| Battlefield 4 (Oct 9, 2013 prototype) | | PlayStation 3 | | |
| Battlefield 4 (Sep 16, 2013 Multiplayer prototype) | | PC | | |
| Battlefield 4 (Sep 17, 2013 USA Multiplayer prototype) | | PlayStation 3 | | |
| Battlefield Hardline (Apr 22, 2014 Install Data prototype) | | PlayStation 3 | | |
| Battlefield Hardline (Dec 10, 2014 Install Data prototype) | | PlayStation 3 | | |
| Battlefield Hardline (Dec 4, 2014 prototype) | | PlayStation 3 | | |
| Battlefield Hardline (Jan 18, 2015 Multiplayer prototype) | | Xbox One | | |
| Battlefield Hardline (Jun 15, 2014 Multiplayer prototype) | | PC | | |
| Battlefield: Bad Company (Apr 25, 2008 prototype) | | Xbox 360 | | |
| Battlefield: Bad Company (DLC Weapon Unlock 1 display name prototype) | | Xbox 360 | | |
| Battlefield: Bad Company (Sep 18, 2009 Patch Data prototype) | | PlayStation 3 | | |
| Battlefield: Bad Company 2 (3 DLCs Pack prototype) | | Xbox 360 | | |
| Battlefield: Bad Company 2 (B Multiplayer prototype) | | PC | | |
| Battlefield: Bad Company 2 (DLC VIP prototype) | | Xbox 360 | | |
| Battlefield: Bad Company 2 (Jan 17, 2010 prototype) | | PlayStation 3 | | |
| Battlefield: Bad Company 2 (Jan 18, 2010 prototype) | | Xbox 360 | | |
| Battlefield: Bad Company 2 (Nov 2, 2010 prototype) | | Xbox 360 | | |
| Battlefield: Bad Company 2 (Nov 20, 2009 EU Multiplayer prototype) | | PlayStation 3 | | |
| Battlefield: Bad Company 2 (Patch Data prototype) | | Xbox 360 | | |
| Battlefield: Bad Company 2 (Sep 9, 2011 USA Limited Edition prototype) | | PlayStation 3 | | |
| Battlefield: Bad Company 2 (Sep 9, 2011 USA prototype) | | PlayStation 3 | | |
| Battlestar Galactica (Aug 22, 2003 prototype) | | Xbox | | |
| Battlestar Galactica (Aug 8, 2007 prototype) | | Xbox 360 | | |
| Battlestar Galactica (Jul 31, 2007 DLC Expansion 1 prototype) | | Xbox 360 | | |
| Battlestar Galactica (Sep 21, 2007 prototype) | | Xbox 360 | | |
| Battlestar Galactica (Sep 29, 2003 prototype) | | PlayStation 2 | | |
| Battlestations: Pacific (DLC Volcano Map Pack prototype) | | Xbox 360 | | |
| Battlestations: Pacific (Mar 12, 2009 prototype) | | Xbox 360 | | |
| Battlestorm (Amstrad CPC prototype) | | Amstrad CPC | | |
| Battletech: Gray Death Legion (Jan 5, 1995 prototype) | | Sega CD | | |
| Battletoads (GBA prototype) | | Game Boy Advance | | |
| Battletoads (Prototype) | | NES | | |
| Battletoads in Battlemaniacs (prototype) | | SNES | | |
| Battlezone (Aug 28, 2006 prototype) | | PlayStation Portable | | |
| Battlezone (Feb 18, 1998 prototype) | | PC | | |
| Battlezone (Feb 9, 1998 prototype) | | PC | | |
| Battlezone (May 12, 1983 prototype) | | Atari 2600 | | |
| Battlezone (May 2, 1983 prototype) | | Atari 2600 | | |
| Battlezone (Oct 2, 2007 prototype) | | Xbox 360 | | |
| Battlezone (Sep 13, 2006 prototype) | | PlayStation Portable | | |
| Bayonetta (Jun 10, 2009 prototype) | | Xbox 360 | | |
| Bayonetta (May 24, 2009 prototype) | | Xbox 360 | | |
| Beach Volleyball (Apr 21, 2000 prototype) | | PlayStation | | |
| Beach'n Ball (Nov 21, 2000 prototype) | | Game Boy Color | | |
| Bear Game (prototype) | | Atari 2600 | | |
| Beast (Rasmus prototype A) | | Commodore 64 | | |
| Beast (Rasmus prototype B) | | Commodore 64 | | |
| Beastball (Prototype) | | Sega Mega Drive | | |
| Beat Down: Fists of Vengeance (Jul 2, 2005 prototype) | | PlayStation 2 | | |
| Beat Down: Fists of Vengeance (Jul 3, 2005 prototype) | | Xbox | | |
| Beat Down: Fists of Vengeance (May 11, 2005 prototype) | | PlayStation 2 | | |
| Beat'n Groovy (May 13, 2008 prototype) | | Xbox 360 | | |
| Beaterator (Aug 7, 2009 prototype) | | PlayStation Portable | | |
| Beaterator (Jan 21, 2009 prototype) | | PlayStation Portable | | |
| Beaterator (May 13, 2009 prototype) | | PlayStation Portable | | |
| Beautiful Katamari (DLC prototype) | | Xbox 360 | | |
| Beautiful Katamari (Sep 2, 2007 prototype) | | Xbox 360 | | |
| Beavis and Butt-Head Do Hollywood (Mar 4, 1998 prototype) | | PlayStation | | |
| Beavis and Butt-Head Do Hollywood (Nov 1, 1998 prototype) | | PlayStation | | |
| Beavis and Butt-Head Do Hollywood (Nov 10, 1998 prototype) | | PlayStation | | |
| Beavis and Butt-Head Do Hollywood (Sep 2, 1998 prototype) | | PlayStation | | |
| Bee Movie Game (Jul 27, 2007 prototype) | | Xbox 360 | | |
| Beethoven's 2nd (Sep 13, 1993 prototype) | | SNES | | |
| Beethoven's 2nd: The Quest for Pups (Prototype) | | Sega Mega Drive | | |
| Beetlejuice (Prototype) | | NES | | |
| Beijing 2008 (Mar 27, 2008 prototype) | | Xbox 360 | | |
| Bejeweled 2 Deluxe (Nov 8, 2005 prototype) | | Xbox 360 | | |
| Bellator MMA Onslaught (April 11, 2013 Prototype) | | Xbox 360 | | |
| Ben 10 (Aug 5, 2007 prototype) | | PC | | |
| Ben 10 Alien Force: The Rise of Hex (Apr 7, 2010 prototype) | | Xbox 360 | | |
| Ben 10 Alien Force: The Rise of Hex (Mar 8, 2010 prototype) | | Xbox 360 | | |
| Ben 10 Ultimate Alien: Cosmic Destruction (prototype) | | Nintendo DS | | |
| Beowulf: The Game (Oct 22, 2007 prototype) | | PlayStation Portable | | |
| Berenstain Bears (Aug 1, 1994 prototype) | | Game Gear | | |
| Berenstain Bears (Aug 11, 1994 prototype A) | | Game Gear | | |
| Berenstain Bears (Aug 11, 1994 prototype) | | Game Gear | | |
| Berenstain Bears (Aug 12, 1994 prototype) | | Game Gear | | |
| Berenstain Bears (Aug 13, 1994 prototype) | | Game Gear | | |
| Berenstain Bears (Aug 14, 1994 prototype) | | Game Gear | | |
| Berenstain Bears (Aug 19, 1994 prototype) | | Game Gear | | |
| Berenstain Bears (Aug 20, 1994 prototype) | | Game Gear | | |
| Berenstain Bears (Aug 24, 1994 prototype) | | Game Gear | | |
| Berenstain Bears (Aug 25, 1994 prototype B) | | Game Gear | | |
| Berenstain Bears (Aug 26, 1994 prototype B) | | Game Gear | | |
| Berenstain Bears (Aug 26, 1994 prototype) | | Game Gear | | |
| Berenstain Bears (Aug 27, 1994 prototype) | | Game Gear | | |
| Berenstain Bears (Jul 15, 1994 prototype B) | | Game Gear | | |
| Berenstain Bears (Jul 21, 1994 prototype) | | Game Gear | | |
| Berenstain Bears (Jul 22, 1994 prototype) | | Game Gear | | |
| Berenstain Bears (Jul 27, 1994 prototype) | | Game Gear | | |
| Berenstain Bears (Jun 28, 1994 prototype) | | Game Gear | | |
| Berenstain Bears' A School Day (Dec 20, 1994 prototype) | | Sega Pico | | |
| Berenstain Bears' A School Day (Jan 13, 1995 prototype) | | Sega Pico | | |
| Berenstain Bears' A School Day (Jan 16, 1995 prototype) | | Sega Pico | | |
| Berenstain Bears' A School Day (Jan 26, 1995 prototype) | | Sega Pico | | |
| Berenstain Bears' A School Day (Jan 27, 1995 prototype) | | Sega Pico | | |
| Berenstain Bears' A School Day (Jan 30, 1995 prototype) | | Sega Pico | | |
| Berenstain Bears' A School Day (Jan 31, 1995 prototype) | | Sega Pico | | |
| Berenstain Bears' A School Day (Jan 6, 1995 prototype) | | Sega Pico | | |
| Berserk: Millennium Falcon Hen Seima Senki no Shou (Jul 12, 2004 prototype) | | PlayStation 2 | | |
| Best of the Best: Championship Karate (Prototype A) | | SNES | | |
| Best of the Best: Championship Karate (Prototype B) | | SNES | | |
| Bet on Soldier: Blood Sport (May 30, 2005 prototype) | | PC | | |
| Beyblade V-Force: Ultimate Blader Jam (Prototype) | | Game Boy Advance | | |
| Beyond (Sep 12, 2005 prototype) | | Xbox | | |
| Beyond Good & Evil (Aug 14, 2003 prototype) | | PlayStation 2 | | |
| Beyond Good & Evil (Oct 13, 2003 prototype) | | PlayStation 2 | | |
| Beyond Good & Evil (Sep 15, 2003 prototype) | | PlayStation 2 | | |
| Beyond Good & Evil (Sep 9, 2003 prototype) | | PlayStation 2 | | |
| Beyond Good & Evil HD (Dec 11, 2010 prototype) | | Xbox 360 | | |
| Beyond Good & Evil HD (Jan 13, 2011 prototype) | | Xbox 360 | | |
| Beyond Good & Evil HD (Jan 18, 2011 prototype) | | Xbox 360 | | |
| Beyond Good & Evil HD (Jan 20, 2011 prototype) | | Xbox 360 | | |
| Beyond Oasis (Apr 1994 prototype) | | Sega Mega Drive | | |
| Beyond Oasis (Nov 1, 1994 prototype) | | Sega Mega Drive | | |
| Beyond Oasis (Nov 15, 1994 prototype) | | Sega Mega Drive | | |
| Beyond Oasis (Oct 17, 1994 prototype) | | Sega Mega Drive | | |
| Beyond Oasis (Oct 4, 1994 prototype) | | Sega Mega Drive | | |
| Beyond Zero Tolerance (Jul 14, 1995 prototype) | | Sega Mega Drive | | |
| Beyond Zero Tolerance (Jun 23, 1995 prototype) | | Sega Mega Drive | | |
| Beyond: Two Souls (Aug 20, 2013 prototype) | | PlayStation 3 | | |
| Beyond: Two Souls (Jun 9, 2013 prototype) | | PlayStation 3 | | |
| Beyond: Two Souls (Nov 6, 2012 prototype) | | PlayStation 3 | | |
| Big Air (Jun 15, 1998 prototype) | | PlayStation | | |
| Big Bird's Egg Catch (Dec 8, 1982 prototype) | | Atari 2600 | | |
| Big Bird's Egg Catch (May 17, 1983 prototype) | | Atari 2600 | | |
| Big Bird's Egg Catch (May 2, 1983 prototype) | | Atari 2600 | | |
| Big Brother (Dec 24, 1998 prototype) | | PC | | |
| Big Buck Hunter Arcade (prototype 1) | | PC | | |
| Big Buck Hunter Arcade (prototype 2) | | PC | | |
| Big Bumpin' (Sep 15, 2006 prototype) | | Xbox | | |
| Big Button Controller (Aug 10, 2010 prototype) | | Xbox 360 | | |
| Big Hero 6: Battle in the Bay (Apr 24, 2014 prototype) | | Nintendo 3DS | | |
| Big Mutha Truckers (Apr 29, 2003 prototype) | | Xbox | | |
| Big Mutha Truckers (Mar 5, 2003 prototype) | | PC | | |
| Big Sky Trooper (May 23, 1995 prototype) | | SNES | | |
| Big Sky Trooper (SNEAKERS prototype) | | SNES | | |
| Big Top Circus (0.2.0197 prototype) | | Nintendo Wii | | |
| Big Top Circus (0.2.121 prototype) | | Nintendo Wii | | |
| Big Top Circus (Apr 6, 2009 prototype) | | Nintendo Wii | | |
| Big Top Circus (anaglyph prototype) | | Nintendo Wii | | |
| Bill Walsh College Football 95 (Jul 20, 1995 prototype) | | PC | | |
| Bill's Tomato Game (Prototype) | | Sega Mega Drive | | |
| Billiard Club (prototype) | | Game Boy Color | | |
| Billy Hatcher and the Giant Egg (Jan 12, 2006 prototype) | | PC | | |
| Bing Bing! Bingo (prototype) | | SNES | | |
| Bio Force Ape (Prototype) | | NES | | |
| Bio Force Ape (US Prototype) | | NES | | |
| Bio-Hazard Battle (Prototype) | | Sega Mega Drive | | |
| BioShock 2 (Dec 16, 2009 prototype) | | Xbox 360 | | |
| BioShock 2 (Nov 30, 2009 prototype) | | Xbox 360 | | |
| BioShock 3D (Aug 28, 2009 prototype) | | Brew | | |
| BioShock 3D (May 26, 2009 prototype) | | Brew | | |
| BioShock 3D Part 2 (Aug 25, 2009 prototype) | | Brew | | |
| BioShock Infinite (Dec 26, 2012 prototype) | | PC | | |
| BioShock Infinite (Oct 17, 2012 prototype) | | PC | | |
| Biohazard (Aug 4, 1995 prototype) | | PlayStation | | |
| Biohazard (Jan 31, 1996 prototype) | | PlayStation | | |
| Biohazard (Oct 4, 1995 prototype) | | PlayStation | | |
| Biohazard 2 (Nov 6, 1996 prototype) | | PlayStation | | |
| Biohazard 2 (Oct 31, 1997 prototype) | | PlayStation | | |
| Bionic Breakthrough (Jun 22, 1984 prototype) | | Atari 2600 | | |
| Bionic Commando (Oct 6, 2008 prototype) | | Xbox 360 | | |
| Bionic Commando (Prototype) | | NES | | |
| Bionic Commando Rearmed 2 (Oct 27, 2010 prototype) | | Xbox 360 | | |
| Bionic Commando: Rearmed (Jun 19, 2008 prototype) | | Xbox 360 | | |
| Bionicle 2 (Jan 21, 2004 Tech Demo) | | Xbox | | |
| Bionicle 2: City of Legends (Dec 9, 2003 tech demo) | | PlayStation 2 | | |
| Bionicle 2: City of Legends (Jan 16, 2004 tech demo) | | PlayStation 2 | | |
| Bionicle 2: City of Legends (Jan 19, 2004 tech demo) | | PlayStation 2 | | |
| Bionicle Heroes (Oct 11, 2006 prototype) | | Xbox 360 | | |
| Bionicle Heroes (Oct 16, 2006 prototype) | | Xbox 360 | | |
| Bionicle Heroes (Sep 28, 2006 prototype) | | PlayStation 2 | | |
| Bionicle Heroes (Sep 4, 2006 prototype) | | PlayStation 2 | | |
| Bird Week (prototype) | | NES | | |
| Birds of Steel (Oct 9, 2011 Install Data prototype) | | PlayStation 3 | | |
| Black & Bruised (Oct 18, 2002 prototype) | | PlayStation 2 | | |
| Black & White: Creatures (Dec 9, 2005 prototype) | | PlayStation Portable | | |
| Black & White: Creatures (May 13, 2005 Nintendo DS prototype) | | Nintendo DS | | |
| Black & White: Creatures (Nintendo DS prototype) | | Nintendo DS | | |
| Black (Aug 16, 2005 prototype) | | PlayStation 2 | | |
| Black (Dec 5, 2005 Xbox demo) | | Xbox | | |
| Black 2 (Feb 13, 2007 prototype) | | Xbox 360 | | |
| Black 2 (Jun 29, 2006 prototype) | | Xbox 360 | | |
| Black 9 (Jan 13, 2004 prototype) | | Xbox | | |
| Black Belt Challenge (prototype) | | Game Boy Advance | | |
| Black Dawn (Aug 2, 1996 prototype) | | PlayStation | | |
| Black Dawn (Jul 15, 1996 prototype) | | PlayStation | | |
| Black Ice / White Noise (Prototype) | | Atari Jaguar CD | | |
| Black Knight Sword (Feb 29, 2012 prototype) | | Xbox 360 | | |
| Black Mesa (May 8, 2006 prototype - Alpha 5) | | PC | | |
| Black Sigil: Blade of the Exiled (Feb 10, 2007 prototype) | | Game Boy Advance | | |
| BlackFire (Jul 6, 1995 prototype) | | Sega Saturn | | |
| BlackSite: Area 51 (Aug 15, 2007 prototype) | | Xbox 360 | | |
| BlackThorne (CES prototype) | | SNES | | |
| BlackThorne (Incomplete Prototype) | | Sega 32X | | |
| Blackwater (Aug 17, 2011 prototype) | | Xbox 360 | | |
| Blade Eagle (Prototype) | | Sega Master System | | |
| Blade Eagle 3-D (Prototype) | | Sega Master System | | |
| Blade Force (Aug 8, 1995 prototype) | | 3DO | | |
| Blade Force (Jul 14, 1995 prototype) | | 3DO | | |
| Blade Force (Sep 6, 1995 prototype) | | 3DO | | |
| Blade II (Jul 4, 2002 prototype) | | Xbox | | |
| Blade Kitten (Jun 24, 2010 prototype) | | Xbox 360 | | |
| Blade Kitten (May 25, 2010 DLC Episode 2 prototype) | | Xbox 360 | | |
| Blade Warrior (Prototype) | | Game Boy | | |
| Bladestorm: The Hundred Years' War (Sep 6, 2007 prototype) | | Xbox 360 | | |
| Blast 'Em Bunnies (Dec 15, 2015 prototype) | | PlayStation Vita | | |
| Blast Chamber (Jul 10, 1996 prototype) | | PlayStation | | |
| Blaster Master (May 20, 1988 prototype) | | NES | | |
| Blaster Master 2 (Apr 15, 1993 prototype) | | Sega Mega Drive | | |
| Blaster Master 2 (Prototype) | | Sega Mega Drive | | |
| Blaster Master Boy (Prototype) | | Game Boy | | |
| Blasto (Mar 11, 1998 build) | | PlayStation | | |
| Blasto (Mar 5, 1998 prototype) | | PlayStation | | |
| BlazBlue: Calamity Trigger (5 DLCs Pack prototype) | | Xbox 360 | | |
| BlazBlue: Calamity Trigger (Apr 23, 2009 prototype) | | Xbox 360 | | |
| BlazBlue: Continuum Shift II (Feb 28, 2011 prototype) | | PlayStation Portable | | |
| Blazing Angels 2: Secret Missions of WWII (Jul 2, 2007 prototype) | | Xbox 360 | | |
| Blazing Angels: Squadrons of WWII (Feb 16, 2006 prototype) | | Xbox 360 | | |
| Blazing Birds (Jun 29, 2008 prototype) | | Xbox 360 | | |
| Bleach: Dark Souls (prototype) | | Nintendo DS | | |
| Blinx: The Time Sweeper (Aug 12, 2002 prototype) | | Xbox | | |
| Bliss Island (Jan 7, 2008 prototype) | | Xbox 360 | | |
| Blitz: The League (Aug 26, 2005 prototype) | | Xbox | | |
| Blitz: The League (Sep 8, 2005 prototype) | | PlayStation 2 | | |
| BlitzTech Framework (May 11, 2009 prototype) | | Xbox 360 | | |
| Block Out (Prototype) | | NES | | |
| Blockbuster (Q*Boyd prototype) | | BBC Micro | | |
| Bloctrix (Aug 26, 1998 prototype) | | PC | | |
| Bloctrix (Jul 16, 1998 prototype) | | PC | | |
| Bloctrix (Nov 24, 1998 prototype) | | PC | | |
| Bloctrix (Nov 5, 1998 prototype) | | PC | | |
| Bloctrix (Oct 14, 1998 prototype) | | PC | | |
| Bloctrix (Oct 15, 1998 13.00 prototype) | | PC | | |
| Bloctrix (Oct 15, 1998 16.18 prototype) | | PC | | |
| Bloctrix (Oct 25, 1998 prototype) | | PC | | |
| Bloctrix (Oct 28, 1998 prototype) | | PC | | |
| Bloctrix (Oct 29, 1998 prototype) | | PC | | |
| Bloctrix (Oct 5, 1998 prototype) | | PC | | |
| Bloctrix (Sep 10, 1998 prototype) | | PC | | |
| Bloctrix (Sep 18, 1998 prototype) | | PC | | |
| Bloctrix (Sep 21, 1998 prototype) | | PC | | |
| Bloctrix (Sep 22, 1998 prototype) | | PC | | |
| Bloctrix (Sep 24, 1998 prototype) | | PC | | |
| Bloctrix (Sep 28, 1998 prototype) | | PC | | |
| Bloctrix (Sep 8, 1998 prototype) | | PC | | |
| Bloctrix (Sep 9, 1998 prototype) | | PC | | |
| Blokus (EN A prototype) | | Nintendo DSi | | |
| Blokus (EN B prototype) | | Nintendo DSi | | |
| Blokus (EN C prototype) | | Nintendo DSi | | |
| Blokus (EN D prototype) | | Nintendo DSi | | |
| Blood (Feb 6, 1996 prototype) | | PC | | |
| Blood (Jul 22, 1996 prototype) | | PC | | |
| Blood Knights (Feb 13, 2013 prototype) | | Xbox 360 | | |
| Blood Knights (Jan 25, 2013 prototype) | | Xbox 360 | | |
| Blood Lines (Jun 21, 1998 prototype) | | PlayStation | | |
| Blood Lines (May 12, 1997 prototype) | | PlayStation | | |
| Blood Omen: Legacy of Kain (Jul 10, 1997 prototype) | | PC | | |
| Blood Omen: Legacy of Kain (Jul 12, 1996 prototype) | | PlayStation | | |
| Blood Omen: Legacy of Kain (Jul 15, 1996 prototype) | | PlayStation | | |
| Blood Omen: Legacy of Kain (Sep 16, 1996 prototype) | | PlayStation | | |
| Blood Wake (Aug 18, 2001 prototype) | | Xbox | | |
| BloodRayne (Aug 5, 2002 prototype) | | Xbox | | |
| BloodRayne 2 (Sep 16, 2004 prototype) | | PlayStation 2 | | |
| BloodRayne: Betrayal (Jul 21, 2011 prototype) | | Xbox 360 | | |
| BloodRayne: Betrayal (May 31, 2011 prototype) | | Xbox 360 | | |
| Bloodborne (Alpha Network Test/TGS Build) | | PlayStation 4 | | |
| Bloodline (prototype) | | Amiga | | |
| Bloody Good Time (Jul 25, 2010 prototype) | | Xbox 360 | | |
| Bloody Roar 4 (Aug 30, 2003 prototype) | | PlayStation 2 | | |
| Bloody Roar 4 (Jul 15, 2003 prototype) | | PlayStation 2 | | |
| Bloody Roar 4 (Sep 9, 2003 prototype) | | PlayStation 2 | | |
| Bloody Roar: Primal Fury (Jan 8, 2002 prototype) | | Nintendo GameCube | | |
| Blue Angelo: Angels from the Shrine (Early prototype) | | Game Boy Advance | | |
| Blue Angelo: Angels from the Shrine (Late prototype) | | Game Boy Advance | | |
| Blue Dragon (May 18, 2007 prototype) | | Xbox 360 | | |
| Blue Dragon: Awakened Shadow (prototype) | | Nintendo DS | | |
| Blue Lightning Tour 1 (Dec 5, 1994 prototype) | | Atari Jaguar CD | | |
| Blue Lightning Tour 2 (Dec 6, 1994 prototype) | | Atari Jaguar CD | | |
| Blue Lightning Tour 3 (Jan 25, 1995 prototype) | | Atari Jaguar CD | | |
| Blueprint (prototype A) | | Atari 2600 | | |
| Blueprint (prototype B) | | Atari 2600 | | |
| Blues Brothers 2000 (Jan 15, 2000 prototype) | | Nintendo 64 | | |
| Blues Brothers 2000 (Jun 30, 2000 prototype) | | Nintendo 64 | | |
| Blur (Feb 26, 2010 prototype) | | Nintendo DS | | |
| Blur (July 13, 2010 prototype) | | Nintendo DS | | |
| Blur (Mar 11, 2010 Patch Data prototype) | | Xbox 360 | | |
| Blur (March 27, 2010 prototype) | | Nintendo DS | | |
| Blur 2 (Nov 4, 2010 prototype) | | Xbox 360 | | |
| Blur DS (prototype) | | Nintendo DS | | |
| Bobby Bounce Back (Final build) | | Commodore 64 | | |
| Bobby Bounce Back (prototype A) | | Commodore 64 | | |
| Bobby Bounce Back (prototype B) | | Commodore 64 | | |
| Bobby Bounce Back (prototype C) | | Commodore 64 | | |
| Bobby Bounce Back (prototype D) | | Commodore 64 | | |
| Bobby Bounce Back (prototype E) | | Commodore 64 | | |
| Bobby Bounce Back (prototype F) | | Commodore 64 | | |
| Bobby Bounce Back (prototype G) | | Commodore 64 | | |
| Bobby Bounce Back (prototype H) | | Commodore 64 | | |
| Bobby Bounce Back (prototype I) | | Commodore 64 | | |
| Bobby Bounce Back (prototype J) | | Commodore 64 | | |
| Bobby Bounce Back (prototype K) | | Commodore 64 | | |
| Bobby's World (European Game Boy prototype) | | Game Boy | | |
| Bobby's World (Prototype) | | SNES | | |
| Bobby's World (US Game Boy prototype) | | Game Boy | | |
| Body Count (Feb 28, 1994 prototype U) | | Sega Mega Drive | | |
| Body Count (Feb 8, 1994 prototype) | | Sega Mega Drive | | |
| Body Count (Jan 27, 1994 prototype) | | Sega Mega Drive | | |
| Body Count (Mar 3, 1994 prototype) | | Sega Mega Drive | | |
| Body Count (Mar 8, 1994 prototype A) | | Sega Mega Drive | | |
| Body Count (Mar 8, 1994 prototype) | | Sega Mega Drive | | |
| Body Count (Mar 9, 1994 prototype) | | Sega Mega Drive | | |
| Body and Brain Connection (DLC Higher Learning I prototype) | | Xbox 360 | | |
| Body and Brain Connection (DLC Higher Learning II prototype) | | Xbox 360 | | |
| Body and Brain Connection (Jan 27, 2011 demo) | | Xbox 360 | | |
| Bodycount (Jul 9, 2011 prototype) | | Xbox 360 | | |
| Boggle (Aug 7, 1978 prototype) | | Atari 2600 | | |
| Bokura no Telebi Game Kentei: Pikotto! Udedameshi (Feb 22, 2008 prototype) | | Nintendo DS | | |
| Bomb (prototype) | | Commodore 64 | | |
| Bomb Jack (Prototype A) | | Game Boy | | |
| Bomb Jack (Prototype B) | | Game Boy | | |
| Bomberman (May 27, 2004 prototype) | | N-Gage | | |
| Bomberman Fantasy Race (Aug 21, 1998 prototype) | | PlayStation | | |
| Bomberman II (Prototype) | | NES | | |
| Bomberman Land (Nov 6, 2007 prototype) | | Nintendo Wii | | |
| Bomberman Live (Jun 18, 2007 prototype) | | Xbox 360 | | |
| Bomberman Live (Oct 29, 2008 prototype) | | Xbox 360 | | |
| Bomberman Online (Feb 7, 2001 prototype) | | Dreamcast | | |
| Bomberman Online (Sep 17, 2001 prototype) | | Dreamcast | | |
| Bomberman Online (Sep 8, 2001 prototype) | | Dreamcast | | |
| Bomberman Selection (prototype 1) | | Game Boy Color | | |
| Bomberman Selection (prototype 2) | | Game Boy Color | | |
| Bombo (Rooster Booster prototype) | | Commodore 64 | | |
| Bonk's Adventure (Prototype) | | Game Boy | | |
| Bonk: Brink of Extinction (Aug 5, 2010 prototype) | | Xbox 360 | | |
| Bonk: Brink of Extinction (DLC 1 A prototype) | | Xbox 360 | | |
| Bonk: Brink of Extinction (DLC 1 B prototype) | | Xbox 360 | | |
| Bonk: Brink of Extinction (DLC 1 C prototype) | | Xbox 360 | | |
| Bonk: Brink of Extinction (DLC 2 A prototype) | | Xbox 360 | | |
| Bonk: Brink of Extinction (DLC 2 B prototype) | | Xbox 360 | | |
| Bonk: Brink of Extinction (DLC 2 C prototype) | | Xbox 360 | | |
| Bonk: Brink of Extinction (DLC 3 A prototype) | | Xbox 360 | | |
| Bonk: Brink of Extinction (DLC 3 B prototype) | | Xbox 360 | | |
| Bonk: Brink of Extinction (DLC 3 C prototype) | | Xbox 360 | | |
| Bonk: Brink of Extinction (Dec 10, 2010 prototype) | | Xbox 360 | | |
| Bonk: Brink of Extinction (Jun 10, 2010 prototype) | | Xbox 360 | | |
| Bonk: Brink of Extinction (Jun 24, 2010 prototype) | | Xbox 360 | | |
| Bonk: Brink of Extinction (May 13, 2010 prototype) | | Xbox 360 | | |
| Bonkers (Aug 25, 1994 prototype) | | Sega Mega Drive | | |
| Bonkers (Aug 29, 1994 prototype) | | Sega Mega Drive | | |
| Bonkers (Aug 4, 1994 prototype) | | Sega Mega Drive | | |
| Bonkers (Mar 28, 1994 prototype) | | Sega Mega Drive | | |
| Bonkers (May 3, 1994 prototype) | | Sega Mega Drive | | |
| Bonkers Wax Up! (Dec 11, 1994 prototype) | | Game Gear | | |
| Bonkers Wax Up! (Dec 12, 1994 prototype D) | | Game Gear | | |
| Bonkers Wax Up! (Dec 3, 1994 prototype) | | Game Gear | | |
| Bonkers Wax Up! (Dec 5, 1994 prototype) | | Game Gear | | |
| Bonkers Wax Up! (Dec 7, 1994 prototype C) | | Game Gear | | |
| Bonkers Wax Up! (Dec 8, 1994 prototype B) | | Game Gear | | |
| Bonkers Wax Up! (Dec 8, 1994 prototype C) | | Game Gear | | |
| Bonkers Wax Up! (Nov 15, 1994 prototype) | | Game Gear | | |
| Bonkers Wax Up! (Nov 21, 1994 prototype) | | Game Gear | | |
| Bonkers Wax Up! (Nov 23, 1994 prototype) | | Game Gear | | |
| Bonkers Wax Up! (Nov 26, 1994 prototype) | | Game Gear | | |
| Bonkers Wax Up! (Nov 29, 1994 prototype) | | Game Gear | | |
| Bonkers Wax Up! (Oct 31, 1994 prototype) | | Game Gear | | |
| Boogerman: A Pick and Flick Adventure (Apr, 1996 Prototype) | | NES | | |
| Boogie (Jul 2, 2007 prototype) | | Nintendo Wii | | |
| Boogie (Jun 26, 2007 prototype) | | Nintendo Wii | | |
| Boogie Bunnies (Nov 16, 2007 prototype) | | Xbox 360 | | |
| Boogie Bunnies (Nov 20, 2007 prototype) | | Xbox 360 | | |
| Boom Boom Rocket (DLC Guitar Pack A prototype) | | Xbox 360 | | |
| Boom Boom Rocket (DLC Guitar Pack B prototype) | | Xbox 360 | | |
| Boom Boom Rocket (DLC Test 2 prototype) | | Xbox 360 | | |
| Boom Boom Rocket (Jul 19, 2007 prototype) | | Xbox 360 | | |
| Boom Boom Rocket (Jun 17, 2007 prototype) | | Xbox 360 | | |
| Boom Boom Rocket (Mar 23, 2007 prototype) | | Xbox 360 | | |
| Borderlands (Aug 14, 2009 prototype) | | Xbox 360 | | |
| Borderlands (Aug 31, 2009 prototype) | | Xbox 360 | | |
| Borderlands (Patch Data prototype) | | Xbox 360 | | |
| Borderlands (Sep 30, 2010 Patch Data prototype) | | PlayStation 3 | | |
| Borderlands Online (Jan 15, 2015 prototype) | | PC | | |
| Borderlands: The Pre-Sequel! (Jul 17, 2014 prototype) | | PC | | |
| Borderlands: The Pre-Sequel! (Oct 13, 2014 DLC Claptastic Voyage & Ultimate Vault Hunter Upgrade Pack 2 prototype) | | PC | | |
| Born in Space (prototype) | | Commodore 64 | | |
| Bottom of the 9th '97 (Apr 18, 1997 prototype) | | PlayStation | | |
| Bottom of the 9th '97 (Jul 25, 1997 prototype) | | PlayStation | | |
| Bottom of the 9th (Jul 10, 1996 prototype) | | Sega Saturn | | |
| Boulder Dash-XL (Jan 19, 2011 prototype) | | Xbox 360 | | |
| Boulder Dash-XL (Jan 21, 2011 prototype) | | Xbox 360 | | |
| Bounced (Lot Check prototype) | | Game Boy Color | | |
| Bound High! (Debug Prototype) | | Virtual Boy | | |
| Bound High! (Prototype A) | | Virtual Boy | | |
| Bound High! (Prototype B) | | Virtual Boy | | |
| Bounty Arms (Jan 30, 1995 demo) | | PlayStation | | |
| Bounty Sword (May 16, 1995 prototype) | | SNES | | |
| Boxing Legends of the Ring (prototype) | | SNES | | |
| Braid (Apr 21, 2008 prototype) | | Xbox 360 | | |
| Brain Challenge (Dec 7, 2007 prototype) | | Xbox 360 | | |
| Brain Pain (Jan 30, 1983 prototype) | | Commodore VIC-20 | | |
| Brainleak (prototype) | | Commodore 64 | | |
| Bram Stoker's Dracula (SNES prototype) | | SNES | | |
| Brave Fencer Musashi (Aug 31, 1998 prototype) | | PlayStation | | |
| Brave Fencer Musashi (Sep 8, 1998 prototype) | | PlayStation | | |
| Brave: A Warrior's Tale (Apr 3, 2009 prototype) | | Nintendo Wii | | |
| Brave: A Warrior's Tale (Feb 19, 2009 prototype) | | Xbox 360 | | |
| Brave: A Warrior's Tale (Sep 30, 2008 prototype) | | Xbox 360 | | |
| Brave: The Search for Spirit Dancer (May 9, 2005 prototype) | | PlayStation 2 | | |
| Braz (Jul 22, 1987 prototype) | | Acorn Electron | | |
| Breach (May 12, 2010 prototype) | | Xbox 360 | | |
| Breach (Prototype) | | Sega Mega Drive | | |
| BreakThru! (Game Gear Prototype) | | Game Gear | | |
| Breakdown (Dec 14, 2003 prototype) | | Xbox | | |
| Breath of Fire II (Prototype) | | SNES | | |
| Breath of Fire IV (May 1, 2000 E3 demo) | | PlayStation | | |
| Breath of Fire V: Dragon Quarter (Oct 24, 2002 prototype) | | PlayStation 2 | | |
| Brett Hull NHL Hockey (Prototype) | | Atari Jaguar CD | | |
| Brickcraft (Jun 28, 2012 prototype) | | PC | | |
| Broken Helix (Apr 15, 1997 prototype) | | PlayStation | | |
| Broken Helix (Apr 22, 1997 prototype) | | PlayStation | | |
| Broken Helix (Jan 13, 1997 prototype) | | PlayStation | | |
| Broken Helix (Oct 7, 1996 prototype) | | PlayStation | | |
| Broken Sword: The Shadow of the Templars (Oct 1, 1997 prototype) | | PlayStation | | |
| Broken Sword: The Sleeping Dragon (Oct 24, 2003 prototype) | | Xbox | | |
| Brooklyn Stories (Feb 12, 2010 Dev demo) | | PlayStation 3 | | |
| Brothers in Arms: Earned in Blood (Aug 1, 2005 prototype) | | PlayStation 2 | | |
| Brothers in Arms: Road to Hill 30 (Feb 12, 2005 prototype) | | PlayStation 2 | | |
| Brothers in Arms: Road to Hill 30 (Feb 15, 2005 prototype) | | Xbox | | |
| Brothers in Arms: Road to Hill 30 (Nov 18, 2004 prototype) | | Xbox | | |
| Brothers: A Tale of Two Sons (Apr 3, 2013 prototype) | | Xbox 360 | | |
| Brothers: A Tale of Two Sons (Mar 18, 2013 prototype) | | Xbox 360 | | |
| Brunswick Pro Bowling (April 2nd, 2007 prototype) | | PlayStation 2 | | |
| Brutal: Paws of Fury (SNES prototype) | | SNES | | |
| Brute Force (Apr 10, 2003 prototype) | | Xbox | | |
| Brütal Legend (DLC HAMMER OF INFINITE FATE prototype) | | Xbox 360 | | |
| Bubble Bobble (Dec 28, 1990 prototype) | | Game Boy | | |
| Bubble Bobble (Game Gear Prototype) | | Game Gear | | |
| Bubble Bobble (NES Prototype) | | NES | | |
| Bubble Bobble II (Dec 13, 1993 prototype) | | Arcade | | |
| Bubble Bobble Neo! (Apr 9, 2009 prototype) | | Xbox 360 | | |
| Bubble Game (Apr 22, 2008 prototype) | | Xbox 360 | | |
| Bubble Ghost (Prototype) | | Game Boy | | |
| Bubbler (May 10, 1988 prototype) | | Commodore 64 | | |
| Bubsy 3D (Mar 13, 1997 prototype) | | PlayStation | | |
| Bubsy II (Jul 12, 1994 prototype) | | SNES | | |
| Bubsy II (Nov 10, 1994 prototype) | | Game Boy | | |
| Bubsy in Claws Encounters of the Furred Kind (Prototype A) | | SNES | | |
| Bubsy in Claws Encounters of the Furred Kind (Prototype B) | | SNES | | |
| Bud Redhead: The Time Chase (Test version) | | PC | | |
| Buffy the Vampire Slayer (Apr 2, 2002 prototype) | | Xbox | | |
| Buffy the Vampire Slayer (Jun 25, 2002 prototype) | | Xbox | | |
| Buffy the Vampire Slayer: Chaos Bleeds (Jul 4, 2003 prototype) | | PlayStation 2 | | |
| Bug Bash (Mar 23, 2007 prototype) | | Xbox 360 | | |
| Bug Too! (Aug 12, 1996 prototype) | | Sega Saturn | | |
| Bug Too! (Nov 8, 1996 prototype) | | Sega Saturn | | |
| Bug! (Jun 14, 1995 prototype) | | Sega Saturn | | |
| Bugs Bunny & Taz: Time Busters (Aug 13, 2000 prototype) | | PlayStation | | |
| Bugs Bunny & Taz: Time Busters (Aug 5, 2000 prototype) | | PlayStation | | |
| Bugs Bunny (Aug 4, 1983 prototype) | | Atari 2600 | | |
| Bugs Bunny in Rabbit Rampage (Nov 30, 1993 prototype) | | SNES | | |
| Bugs Bunny: Private Eye (1991 prototype) | | Commodore 64 | | |
| Bugs Bunny: Private Eye (Nov 26, 1992 prototype) | | Commodore 64 | | |
| Bujingai: The Forsaken City (Nov 2, 2003 prototype) | | PlayStation 2 | | |
| Buku Sudoku (DLC Puzzle Pack 1 A prototype) | | Xbox 360 | | |
| Buku Sudoku (DLC Puzzle Pack 1 B prototype) | | Xbox 360 | | |
| Buku Sudoku (DLC Puzzle Pack 2 prototype) | | Xbox 360 | | |
| Buku Sudoku (DLC Puzzle Pack 3 prototype) | | Xbox 360 | | |
| Buku Sudoku (DLC Puzzle Pack 4 prototype) | | Xbox 360 | | |
| Buku Sudoku (DLC Puzzle Pack 5 prototype) | | Xbox 360 | | |
| Buku Sudoku (Dec 27, 2007 prototype) | | Xbox 360 | | |
| Bullet Soul (Sep 14, 2010 prototype) | | Xbox 360 | | |
| Bulletstorm (Aug 31, 2011 prototype) | | Xbox 360 | | |
| Bulletstorm (Jul 14, 2011 prototype) | | Xbox 360 | | |
| Bulletstorm (Nov 1, 2010 DLC Leash Colors 01 prototype) | | Xbox 360 | | |
| Bulletstorm (Nov 1, 2010 DLC Leash Colors 02 prototype) | | Xbox 360 | | |
| Bulletstorm (Nov 1, 2010 DLC PMC Pre-order Skin prototype) | | Xbox 360 | | |
| Bulletstorm (Nov 1, 2010 DLC Pre-Order Boot Skin prototype) | | Xbox 360 | | |
| Bulletstorm (Nov 12, 2010 DLC Echopack 01 prototype) | | Xbox 360 | | |
| Bulletstorm (Nov 12, 2010 DLC Echopack 02 prototype) | | Xbox 360 | | |
| Bulletstorm (Nov 23, 2010 DLC Pre-Order Character Skin prototype) | | Xbox 360 | | |
| Bulletstorm (Oct 7, 2010 DLC Bonus XP 01 prototype) | | Xbox 360 | | |
| Bully: Scholarship Edition (Debug Build) | | Nintendo Wii | | |
| Bully: Scholarship Edition (Jan 11, 2008 prototype) | | Nintendo Wii | | |
| Bully: Scholarship Edition (Late Build) | | Nintendo Wii | | |
| Bully: Scholarship Edition (Nov 13, 2007 prototype) | | Nintendo Wii | | |
| Bully: Scholarship Edition (Nov 16, 2007 prototype) | | Nintendo Wii | | |
| BurgerTime: World Tour (Jul 7, 2011 prototype) | | Xbox 360 | | |
| Burn Out (Early prototype) | | Atari Jaguar | | |
| Burning Fists: Force Striker (Dec 7, 1993 prototype) | | Sega CD | | |
| Burning Rangers (Dec 1, 1997 prototype) | | Sega Saturn | | |
| Burning Rangers (Jan 3, 1998 prototype) | | Sega Saturn | | |
| Burnout (Jan 3, 2002 prototype) | | PlayStation 2 | | |
| Burnout (Mar 21, 2002 prototype) | | Xbox | | |
| Burnout (Mar 6, 2002 prototype) | | Nintendo GameCube | | |
| Burnout (Mar 7, 2002 prototype) | | Xbox | | |
| Burnout (Sep 12, 2001 prototype) | | PlayStation 2 | | |
| Burnout 2: Point of Impact (Aug 31, 2002 22.44.32 prototype) | | PlayStation 2 | | |
| Burnout 2: Point of Impact (Aug 31, 2002 prototype) | | PlayStation 2 | | |
| Burnout 2: Point of Impact (Aug 5, 2002 prototype) | | PlayStation 2 | | |
| Burnout 2: Point of Impact (Jul 27, 2002 prototype) | | PlayStation 2 | | |
| Burnout 2: Point of Impact (Jul 29, 2002 prototype) | | PlayStation 2 | | |
| Burnout 2: Point of Impact (Mar 28, 2003 prototype) | | Xbox | | |
| Burnout 3: Takedown (Jul 20, 2004 11.11 prototype) | | PlayStation 2 | | |
| Burnout 3: Takedown (Jul 20, 2004 11.14 prototype) | | PlayStation 2 | | |
| Burnout 3: Takedown (Jul 28, 2004 prototype) | | Xbox | | |
| Burnout 3: Takedown (Jun 22, 2004 prototype) | | Xbox | | |
| Burnout 3: Takedown (Jun 8, 2004 prototype) | | PlayStation 2 | | |
| Burnout Crash! (Mar 1, 2011 prototype) | | PlayStation 3 | | |
| Burnout Crash! (Mar 10, 2011 prototype) | | Xbox 360 | | |
| Burnout Crash! (May 12, 2011 prototype) | | Xbox 360 | | |
| Burnout Dominator (Jan 31, 2007 prototype) | | PlayStation 2 | | |
| Burnout Paradise (Aug 16, 2008 DLC Bikes prototype) | | Xbox 360 | | |
| Burnout Paradise (DLC 1.9 prototype) | | Xbox 360 | | |
| Burnout Paradise (DLC Content Test prototype) | | Xbox 360 | | |
| Burnout Paradise (Feb 22, 2007 prototype) | | Xbox 360 | | |
| Burnout Paradise (Nov 13, 2006 prototype) | | Xbox 360 | | |
| Burnout Paradise (Nov 28, 2007 prototype) | | Xbox 360 | | |
| Burnout Paradise (Nov 30, 2007 prototype) | | PlayStation 3 | | |
| Burnout Paradise (Oct 31, 2007 PlayStation 3 prototype) | | PlayStation 3 | | |
| Burnout Paradise (Oct 31, 2007 Xbox 360 prototype) | | Xbox 360 | | |
| Burnout Paradise (Update Pack prototype) | | Xbox 360 | | |
| Burnout Revenge (Aug 4, 2005 prototype) | | PlayStation 2 | | |
| Burnout Revenge (Feb 7, 2006 prototype) | | Xbox 360 | | |
| Burnout Revenge (Jul 14, 2005 prototype) | | PlayStation 2 | | |
| Bushido Warrior (May 25, 1988 prototype) | | Amstrad CPC | | |
| Bust A Groove 2 (May 25, 2000 prototype) | | PlayStation | | |
| Bust a Groove (Aug 27, 1998 prototype) | | PlayStation | | |