| Agent Klutz (2020) | 100 | 4 |
| Agent Lovesdick (2019) | 691 | 1 |
| Agent Mirai and the Submission Machines (2024) | 0 | 0 |
| Agent MOO: Maximum Overdeath (2009) | 209 | 1 |
| Agent Orange (1986) | 1,675,326 | 56 |
| Agent Roswell : Tactics (2022) | 230 | 3 |
| Agent Team Simulator (2023) | 8 | 1 |
| Agent USA (1984) | 61,162 | 55 |
| Agent Walker: Secret Journey (2016) | 81,066 | 164 |
| Agent X (1986) | 83,039 | 60 |
| Agent X II: The Mad Prof's Back (1987) | 16,481 | 39 |
| AgentRoy - Secure The Temple (2023) | 1,678 | 8 |
| Agents of Aggro City Online (2018) | 62 | 1 |
| Agents of Mayhem (2017) | 29,237,680 | 16,659 |
| Agents of SomeCompany (2024) | 7 | 2 |
| Agents vs Villain (2018) | 832 | 2 |
| Agents: Biohunters (2020) | 99,386 | 107 |
| AGEOD's American Civil War (2007) | 16,820 | 48 |
| Ages of Cataria (2025) | 9,555 | 39 |
| Ages of Conflict: World War Simulator (2023) | 595,965 | 334 |
| Ages of Mages: The last keeper (2018) | 112,233 | 141 |
| Aggelos (2018) | 757,702 | 1,149 |
| Aggression: Europe Under Fire (2014) | 8,095 | 6 |
| Aggressive Inline (2002) | 1,189,516 | 598 |
| Aggressors of Dark Kombat (1994) | 1,686,260 | 1,134 |
| Aggressors: Ancient Rome (2018) | 605,001 | 376 |
| Agharta: The Hollow Earth (2000) | 123,972 | 19 |
| Agile Warrior F-111X (1995) | 53,157 | 88 |
| Agni Fighter (2023) | 36 | 2 |
| Agnition: Ignis (2024) | 39 | 2 |
| AGON: The Lost Sword of Toledo (2008) | 20,707 | 95 |
| Agony (1992) | 49,847,461 | 3,654 |
| Agony VR (2023) | 32,473 | 15 |
| AGOS - A Game Of Space (2020) | 269,189 | 138 |
| Agrou (2020) | 28,837,779 | 331 |
| Aground (2018) | 7,477,986 | 1,386 |
| Aground Zero (2023) | 117,436 | 134 |
| Aguri Suzuki F-1 Super Driving (1992) | 18,509 | 66 |
| Ah Diddums (1983) | 8,466 | 18 |
| Ah Eikou No Koshien (1991) | 18,759 | 14 |
| Ah, Love! (2018) | 10,660 | 38 |
| Ahlgrens Bilspelet (1997) | 271 | 1 |
| Ahnayro: The Dream World (2016) | 9,316 | 42 |
| AHOD: All Hands on Deck! (2023) | 13,824 | 11 |
| Ahri RPG: Poro Farm (2017) | 1,005 | 4 |
| Ahro (2024) | 1,526 | 4 |
| Ai Cho Aniki (1995) | 281,755 | 55 |
| AI Drone Simulator (2021) | 24,705 | 9 |
| AI Dungeon (2019) | 38,496,416 | 2,514 |
| AI Kills All Humans (2024) | 326 | 3 |
| AI LIMIT (2025) | 1,855,836 | 2,903 |
| AI Olympius (2023) | 20,401 | 68 |
| Ai Sensei no Oshiete: Watashi no Hoshi (1993) | 6,016 | 27 |
| Ai Senshi Nicol (1987) | 382,569 | 190 |
| AI Shogi 3 (1998) | 5,769 | 20 |
| Ai Space (2008) | 21,940 | 11 |
| Ai Vpet (2024) | 0 | 0 |
| AI War 2 (2018) | 1,352,543 | 600 |
| AI War: Fleet Command (2009) | 561,786 | 530 |
| Ai Yori Aoshi (2005) | 2,963 | 18 |
| AI-VJ (2024) | 17 | 1 |
| AI2U: With You 'Til The End (2025) | 8,062,088 | 236 |
| AI: The Somnium Files (2019) | 18,324,991 | 26,224 |
| AI: The Somnium Files - nirvanA Initiative (2022) | 6,507,890 | 8,358 |
| Aidan in Danger (2024) | 8,996 | 27 |
| AIdol (2018) | 1,910 | 29 |
| AIdventure (2022) | 3,357 | 22 |
| Aidyn Chronicles: The First Mage (2001) | 194,096 | 461 |
| Aighina no Yogen: From the Legend of Balubalouk (1986) | 97,406 | 157 |
| AIII S.V.: A Ressha de Ikou 3 Super Version (1995) | 6,943 | 23 |
| AIKA Online (2009) | 3,308,265 | 3,482 |
| Aikatsu Friends! (2018) | 373,012 | 584 |
| Aikatsu Stars! (2016) | 1,560,475 | 463 |
| Aikatsu! My No. 1 Stage! (2015) | 44,894 | 67 |
| AiliA (2026) | 152 | 1 |
