| Acrobatic Dog-Fight (1984) | 16,639 | 69 |
| Acrojet (1985) | 1,859 | 11 |
| Acron: Attack of the Squirrels! (2019) | 656,420 | 173 |
| Across Age (2010) | 143,203 | 36 |
| Across Kiloparsecs (2024) | 0 | 0 |
| Across the Abyss: Voidborn (2024) | 236 | 10 |
| Across the Galaxy: Stellar Dominator (2021) | 395 | 5 |
| Across the Grooves (2020) | 244,888 | 160 |
| Across the Obelisk (2021) | 7,176,469 | 3,117 |
| Across the Rhine (1995) | 215,147 | 16 |
| The Act (2007) | 8,237,837 | 135 |
| Act of Aggression (2015) | 5,497,264 | 1,357 |
| Act of War: Direct Action (2005) | 1,001,747 | 892 |
| Act-Fancer: Cybernetick Hyper Weapon (1989) | 174,344 | 147 |
| Actala: The Hero's Shadow (2023) | 0 | 0 |
| Action 52 (1991) | 30,060,955 | 3,766 |
| Action Arcade Wrestling (2019) | 1,363,516 | 1,490 |
| Action Ball (2005) | 1,378,011 | 884 |
| Action Ball 2 (2020) | 58,880 | 113 |
| Action Bass (1999) | 103,726 | 96 |
| Action Biker (1985) | 88,841 | 79 |
| Action Fighter (1986) | 516,798 | 530 |
| Action Fist (2010) | 22,066 | 7 |
| Action Force (1987) | 619,930 | 251 |
| Action Force II (1988) | 11,516 | 23 |
| Action Fubuki (2024) | 430 | 4 |
| ACTION GAME MAKER (2025) | 0 | 0 |
| Action Girlz Racing (2005) | 4,041,783 | 131 |
| Action Henk (2014) | 23,622,835 | 1,348 |
| Action Hero 3D: Wild Dog (2009) | 6,425 | 18 |
| Action Hollywood (1995) | 5,577,628 | 76 |
| Action Legion (2016) | 30,570 | 35 |
| Action Man: Jungle Storm (2000) | 26,487 | 5 |
| Action Man: Raid on Island X (1999) | 14,317 | 7 |
| Action Man: Robot Atak (2004) | 61,465 | 189 |
| Action Man: Search for Base X (2001) | 59,792 | 147 |
| Action Pachio (1993) | 27,428 | 105 |
| Action Quest (1982) | 13,703 | 104 |
| Action Reflex (1986) | 3,772 | 18 |
| Action Soccer (1995) | 60,572 | 43 |
| Action Taimanin (2019) | 8,529,503 | 13,585 |
| Actionauts (1986) | 35,073 | 10 |
| Active DBG: Brave's Rage (2022) | 120,278 | 90 |
| Active Health with Carol Vorderman (2009) | 758 | 9 |
| Active Lancer (2003) | 224 | 1 |
| Active Life: Explorer (2010) | 191,067 | 90 |
| Active Life: Extreme Challenge (2009) | 206,284 | 22 |
| Active Life: Magical Carnival (2011) | 26,404 | 39 |
| Active Life: Outdoor Challenge (2008) | 1,046,432 | 188 |
| Active Neurons - Wonders Of The World (2020) | 38,434 | 351 |
| Active Neurons 2 (2020) | 14,535 | 185 |
| Active Neurons 3 (2020) | 55,519 | 182 |
| Active Soccer 2023 (2023) | 58,730 | 36 |
| Active Worlds (1995) | 5,623,742 | 107 |
| Activision Anthology (2002) | 239,172 | 475 |
| Activision Barbie in the 12 Dancing Princesses (2006) | 293,362 | 44 |
| The Activision Decathlon (1983) | 171,364 | 188 |
| Activision Hits: Remixed (2006) | 38,231 | 62 |
| Activision Ice Age Continental Drift (2012) | 0 | 0 |
| ActRaiser (1990) | 17,049,495 | 6,384 |
| ActRaiser 2 (1993) | 2,671,872 | 1,413 |
| Actraiser Renaissance (2021) | 4,008,112 | 4,367 |
| Actua Golf (1996) | 44,286 | 132 |
| Actua Golf 2 (1997) | 25,205 | 42 |
| Actua Ice Hockey (1998) | 36,781 | 121 |
| Actua Pool (1999) | 33,551 | 34 |
| Actua Soccer (1995) | 455,247 | 315 |
| Actua Soccer 2 (1997) | 95,048 | 88 |
| Actua Tennis (2022) | 37,122 | 44 |
| Actual Sunlight (2014) | 477,472 | 114 |
| Aculeata (2023) | 0 | 1 |
| ACUVAC: A Suck and Blow Adventure (2025) | 0 | 0 |
| Ad Astra (1984) | 7,092,953 | 771 |
| Ad Astra Infinita: The New Evolution (2025) | 0 | 0 |
| Ad Fundum (2024) | 83,794 | 40 |
