| Akai Katana Shin | 2023 | switch |
| Akai Katana Shin | 2011 | xbox360 |
| Akal | 2023 | genesis |
| Akazukin | 1983 | arcade |
| Akka Arrh | 2023 | switch |
| Akka Arrh | 1982 | arcade |
| Akkanbeder | 1995 | arcade |
| Akkanvader | 1995 | arcade |
| Akuu Gallet | 1996 | arcade |
| Akuu Senki Raijin | 1988 | fds |
| Aladdin III | 1995 | nes |
| Alcon | 1986 | arcade |
| Aleste Collection | 2020 | ps4, switch |
| Alice Gear Aegis CS: Concerto of Simulatrix | 2022 | switch |
| Alien | 1992 | svision |
| Alien Breed - Evolution | 2009 | xbox360 |
| Alien Breed - Impact | 2010 | ps3 |
| Alien Breed - Tower Assault | 1994 | cd32 |
| Alien Breed 2 - Assault | 2010 | ps3, xbox360 |
| Alien Breed 3 - Descent | 2010 | ps3, xbox360 |
| Alien Breed 3D | 1995 | cd32 |
| Alien Breed Trilogy | 2011 | xbox360 |
| Alien Brigade | 1989 | a7800 |
| Alien Cruise | 2019 | switch, xboxone |
| Alien Front | 2001 | arcade |
| Alien Gate | 1992 | cdi |
| Alien Hominid | 2004 | gba, gc, ps2, xbox |
| Alien Hominid HD | 2025 | ps4 |
| Alien Hominid Invasion | 2025 | ps4 |
| Alien Hominid Invasion | 2023 | switch |
| Alien Invaders | | arcade |
| Alien Invaders - Plus | 1980 | o2 |
| Alien Invasion | 1981 | channelf |
| Alien Invasion | | arcade |
| Alien Invasion Part II | | arcade |
| Alien Rage | 2013 | ps3, xbox360 |
| Alien Resurrection | 2000 | ps1 |
| Alien Sector | 1985 | arcade |
| Alien Shooter | 2015 | ps3, vita |
| Alien Smash | 2026 | nes |
| Alien Soldier | 1995 | genesis |
| Alien Syndrome | 1987 | gg, nes, sms |
| Alien Trilogy | 1996 | ps1, saturn |
| Alien Zombie Death | | psp |
| Alien vs Predator | 1994 | jaguar, lynx |
| Alien3: The Gun | 1993 | arcade |
| Aliens | 1990 | arcade |
| Aliens - Alien 2 | 1987 | fds |
| Aliens - Colonial Marines | 2013 | ps3, xbox360 |
| Aliens - Thanatos Encounter | 2001 | gbc |
| Aliens vs. Predator | 2010 | ps3, xbox360 |
| Aliens: Fireteam Elite | 2021 | ps4 |
| All Zombies Must Die! | 2011 | ps3, xbox360 |
| Alligator Hunt | 1994 | arcade |
| Alpha Mission | 1987 | nes |
| Alpha Mission | 1985 | arcade |
| Alpha Mission II | 2011 | psp |
| Alpha Mission II / ASO II - Last Guardian | 1991 | arcade |
| Alpha One | 1988 | arcade |
| Alpha One | 1983 | arcade |
| Alpha Race | 2015 | a7800 |
| Alphamax | 2016 | gb |
| The Alphax Z | 1986 | arcade |
| Altair | 1981 | arcade |
| Altair II | | arcade |
| Altercation | 2021 | nes |
| Ambush | 1983 | arcade |
| America's 10 Most Wanted | 2003 | ps2 |
| America's Army - Rise of a Soldier | 2005 | xbox |
| America's Army - True Soldiers | 2007 | xbox360 |
| Andro Dunos | 1992 | arcade, neogeo |
| Andro Dunos | 2013 | neogeocd |
| Andro Dunos 2 | | 3ds |
| Android | 1987 | arcade |
| Android Assault - The Revenge of Bari-Arm | 1994 | segacd |
| Andromeda SS | 1980 | arcade |
| Angelian Trigger | 2024 | switch |
| AngerForce Reloaded | 2019 | xboxone |
| AngerForce: Reloaded | 2019 | ps4, switch |
| Angriff der Luftflotten | 1983 | a2600 |
| Aniversario | 2005 | genesis |
| Annexed Territory | 2024 | genesis |
| Annihilation | 2017 | wiiu |
| Anti A-Bomb Aircraft Artillery | 2005 | lynx |
| Anti-Aircraft | 1975 | arcade |
| Anubis - Zone of the Enders | 2003 | ps2 |
| Anubis - Zone of the Enders - Special Edition | 2003 | ps2 |
| Apache 3 | 1988 | arcade |
| Aperion Cyberstorm | 2018 | switch, wiiu |
| Apex Legends | 2019 | ps4, switch, xboxone |
| Apocaljpse Now | 1982 | arcade |
| Apocalypse | 1998 | ps1 |
| Apocalypse II | 1995 | snes |
| Aqua Jack | 1990 | arcade |
| Aqua Kitty - Milk Mine Defender DX | 2014 | vita |
| AquaNox: Deep Descent | | xboxone |
| Aracnis | | arcade |
| Arbalester | 1989 | arcade |
| Arcade Archives: A-Jax | 2015 | ps4 |
| Arcade Archives: A-Jax | 2021 | switch |