| Game | Platform | Release Date | Overview | Front Cover | Back Cover | Fan Art | Title Screen | Screenshots | Clear Logo |
|---|---|---|---|---|---|---|---|---|---|
| Alien Pig Blaster #108420 | PC | 2014-02-19 | Missing | ✓ | Missing | Missing | Missing | ✓ | Missing |
| Alien Pig Blaster #108421 | Mac OS | 2014-02-19 | Missing | ✓ | Missing | Missing | Missing | ✓ | Missing |
| Alien Plague #133158 | Commodore VIC-20 | 1982-01-01 | Missing | ✓ | Missing | Missing | Missing | ✓ | Missing |
| Alien Planet #73863 | Atari 2600 | 1970-01-01 | Missing | ✓ | Missing | Missing | Missing | Missing | Missing |
| Alien Rage #34222 | Sony Playstation 3 | 2013-10-22 | ✓ | ✓ | Missing | Missing | Missing | ✓ | Missing |
| Alien Rage #81052 | Microsoft Xbox 360 | 2013-09-24 | Missing | ✓ | Missing | Missing | Missing | ✓ | Missing |
| Alien Raiders #70642 | Milton Bradley Microvision | 1981-01-01 | Missing | ✓ | Missing | Missing | Missing | Missing | Missing |
| Alien Raiders #137913 | Commodore VIC-20 | 1981-01-01 | Missing | ✓ | Missing | Missing | Missing | ✓ | Missing |
| Alien Rain #132770 | Sinclair ZX81 | 1970-01-01 | Missing | ✓ | Missing | Missing | Missing | ✓ | Missing |
| Alien Rampage #42190 | PC | 1996-09-19 | ✓ | ✓ | Missing | Missing | Missing | ✓ | Missing |
| Alien Rescue #133549 | Commodore 64 | 1982-01-01 | ✓ | ✓ | Missing | Missing | Missing | ✓ | Missing |
| Alien Resurrection #112257 | Sony Playstation | 2000-01-12 | ✓ | ✓ | Missing | Missing | Missing | Missing | Missing |
| Alien Revenge #99000 | Atari 2600 | 2018-07-18 | ✓ | ✓ | Missing | Missing | Missing | ✓ | Missing |
| Alien Robot Monsters #85066 | PC | 2015-09-10 | ✓ | ✓ | Missing | Missing | Missing | Missing | Missing |
| Alien Sector #25745 | Arcade | 1985-04-28 | ✓ | ✓ | Missing | Missing | Missing | Missing | Missing |
| Alien Shooter #48051 | Android | 2013-11-28 | ✓ | ✓ | Missing | Missing | Missing | Missing | Missing |
| Alien Shooter #62963 | Sony Playstation Vita | 2015-05-19 | ✓ | ✓ | Missing | Missing | Missing | ✓ | Missing |
| Alien Shooter #140760 | Oculus Quest | 2025-02-11 | ✓ | ✓ | Missing | Missing | Missing | ✓ | Missing |
| Alien Shooter 2 #17017 | PC | 2007-02-16 | ✓ | ✓ | ✓ | Missing | Missing | ✓ | Missing |
| Alien Shooter 2: Reloaded #17898 | PC | 2009-03-14 | ✓ | ✓ | Missing | Missing | Missing | ✓ | Missing |
| Alien Shooter: Revisited #17167 | PC | 2009-04-15 | ✓ | ✓ | Missing | Missing | Missing | ✓ | Missing |
| ALIEN SIDESTEP #67091 | Commodore 64 | 1983-01-01 | ✓ | ✓ | Missing | Missing | Missing | Missing | Missing |
| Alien Sidestep #133159 | Commodore VIC-20 | 1982-01-01 | Missing | ✓ | Missing | Missing | Missing | ✓ | Missing |
| Alien Soccer #133160 | Commodore VIC-20 | 1982-01-01 | Missing | ✓ | Missing | Missing | Missing | ✓ | Missing |
| Alien Soldier #24017 | Sega Genesis | 1995-02-24 | ✓ | ✓ | ✓ | Missing | Missing | Missing | ✓ |
| Alien Soldier #92866 | Nintendo Wii | 2007-11-05 | ✓ | ✓ | Missing | Missing | Missing | Missing | Missing |
| Alien Soldier #138003 | Sega Mega Drive | 1995-08-01 | ✓ | ✓ | Missing | Missing | Missing | Missing | Missing |
| Alien Spidy #96520 | Microsoft Xbox 360 | 2013-03-20 | ✓ | ✓ | Missing | Missing | Missing | Missing | Missing |
| Alien Storm #2687 | Sega Master System | 1991-06-28 | ✓ | ✓ | ✓ | Missing | Missing | Missing | ✓ |
| Alien Storm #4242 | Sega Genesis | 1991-07-24 | ✓ | ✓ | ✓ | Missing | Missing | Missing | ✓ |
| Alien Storm #18899 | Sega Genesis | 1991-06-28 | ✓ | ✓ | ✓ | Missing | Missing | Missing | ✓ |
| Alien Storm #31629 | Arcade | 1990-04-25 | ✓ | ✓ | Missing | Missing | Missing | ✓ | ✓ |
| Alien Storm #38080 | Atari ST | 1991-01-01 | Missing | ✓ | Missing | Missing | Missing | Missing | Missing |
| Alien Storm #41413 | Sinclair ZX Spectrum | 1991-12-01 | Missing | ✓ | Missing | Missing | Missing | Missing | Missing |
| Alien Storm #51060 | Amiga | 1990-05-10 | ✓ | ✓ | ✓ | Missing | Missing | ✓ | ✓ |
| Alien Storm #51096 | Commodore 64 | 1991-01-01 | ✓ | ✓ | Missing | Missing | Missing | ✓ | Missing |
| Alien Swarm #132899 | Sinclair ZX Spectrum | 1970-01-01 | ✓ | ✓ | Missing | Missing | Missing | ✓ | Missing |
| Alien Swarm: Reactive Drop #70819 | PC | 2017-04-20 | ✓ | ✓ | Missing | Missing | Missing | ✓ | Missing |
| Alien Swirl #129387 | BBC Micro | 1983-01-01 | ✓ | ✓ | Missing | Missing | Missing | ✓ | Missing |
| Alien Syndrome #6477 | Commodore 64 | 1988-12-01 | ✓ | ✓ | ✓ | Missing | Missing | Missing | ✓ |
| Alien Syndrome #11831 | Sega Game Gear | 1992-01-01 | ✓ | ✓ | ✓ | Missing | Missing | Missing | ✓ |
| Alien Syndrome #16738 | Sony Playstation Portable | 2007-07-24 | ✓ | ✓ | Missing | Missing | Missing | Missing | Missing |
| Alien Syndrome #24478 | Amiga | 1988-01-01 | ✓ | ✓ | Missing | Missing | Missing | Missing | ✓ |
| Alien Syndrome #28807 | Amstrad CPC | 1988-12-01 | ✓ | ✓ | Missing | Missing | Missing | Missing | Missing |
| Alien Syndrome #36564 | MSX | 1988-01-01 | ✓ | ✓ | ✓ | Missing | Missing | ✓ | Missing |
| Alien Syndrome #38081 | Atari ST | 1989-01-01 | Missing | ✓ | Missing | Missing | Missing | Missing | Missing |
| Alien Syndrome #38844 | Sinclair ZX Spectrum | 1988-01-01 | Missing | ✓ | Missing | Missing | Missing | Missing | Missing |
| Alien Syndrome #95647 | Atari Jaguar | 2015-12-11 | ✓ | ✓ | Missing | Missing | Missing | Missing | Missing |
| Alien Syndrome #120532 | Sharp X68000 | 1989-01-01 | ✓ | ✓ | Missing | Missing | Missing | Missing | Missing |
| Alien Tequila #116610 | PC | 2002-10-15 | Missing | ✓ | Missing | Missing | Missing | Missing | Missing |