| ATV: Quad Power Racing 2 (2003) | 2,096,614 | 343 |
| ATV: Thunder Ridge Riders (2006) | 3,553 | 72 |
| ATV: Thunder Ridge Riders / Monster Trucks Mayhem (2008) | 4,527 | 9 |
| Au Revoir (2025) | 2,215,981 | 128 |
| Au Sable (2009) | 199,093 | 38 |
| Auctus (2026) | 0 | 0 |
| Audica (2019) | 3,114,916 | 881 |
| Audio Beats (2017) | 36,671 | 29 |
| Audio Trip (2019) | 549,896 | 393 |
| AudioClash: Battle of the Bands (2021) | 48,844 | 68 |
| Audioshield (2016) | 8,255,673 | 1,165 |
| AudioSpace (2021) | 58 | 1 |
| Audiosurf (2008) | 33,323,770 | 19,236 |
| Audiosurf 2 (2015) | 12,511,451 | 11,254 |
| AudioWizards (2020) | 9,528 | 13 |
| Audition Online (2004) | 9,442,016 | 5,277 |
| Auditorium (2008) | 897,137 | 184 |
| Auf Wiedersehen Monty (1987) | 77,335 | 140 |
| Augma II - Arc I (2023) | 4 | 1 |
| Augmented Empire (2017) | 214,624 | 151 |
| Augmented Introspection: Emel (2023) | 0 | 0 |
| Augury (2021) | 128,341 | 14 |
| Augustus: Im Auftrag des Kaisers (2004) | 4,164 | 13 |
| Aunewyth (2023) | 9 | 1 |
| Aunt Arctic Adventure (1988) | 3,315 | 12 |
| Aura Farmers (2026) | 0 | 0 |
| Aura II: The Sacred Rings (2007) | 25,930 | 52 |
| Aura Kingdom (2013) | 25,368,628 | 10,112 |
| Aura Kingdom 2 (2020) | 4,736,128 | 1,658 |
| Aura of Worlds (2018) | 18,814 | 37 |
| Aura-Aura Climber (2010) | 47,151 | 11 |
| Aura: Fate of the Ages (2004) | 99,274 | 111 |
| AURA: Hentai Cards (2023) | 106,400 | 18 |
| Aurail (1990) | 73,389 | 79 |
| Aurendor (2023) | 1,173 | 4 |
| Aureole - Wings of Hope (2025) | 42,238 | 61 |
| Aurion: Legacy of the Kori-Odan (2016) | 279,756 | 531 |
| Auro The Bunny (2021) | 325 | 4 |
| Aurora Chronicles (2022) | 0 | 0 |
| Aurora Defense (2025) | 26,970 | 22 |
| Aurora Quest: Otaku no Seiza in Another World (1993) | 2,013 | 12 |
| Aurora's Journey and the Pitiful Lackey (2023) | 50,944 | 56 |
| Aurora: A Child's Journey (2020) | 27,717 | 172 |
| Aurora: Genesis (2025) | 11 | 3 |
| Aurrery (2019) | 0 | 0 |
| Aurum Kings (2018) | 0 | 0 |
| AUSSIE BATTLER TANKS (2019) | 0 | 0 |
| Aussie Rules Footy (1991) | 36,353 | 59 |
| Austen Translation (2018) | 800 | 3 |
| Austerlitz (1986) | 17,630 | 7 |
| Austerlitz (1989) | 2,022 | 7 |
| Austin Powers Operation: Trivia (1999) | 12,212 | 10 |
| Austin Powers Pinball (2002) | 135,522 | 178 |
| Austin Powers: Oh, Behave! (2000) | 61,136 | 48 |
| Austin Powers: Welcome to My Underground Lair! (2000) | 50,356 | 54 |
| Australian Rugby League (1994) | 15,976 | 37 |
| Australian Rules Football (1989) | 73,771 | 11 |
| Australian trip (2017) | 301 | 6 |
| AUTARKIS (2025) | 0 | 0 |
| Author Clicker (2019) | 0 | 0 |
| Auto Assault (2006) | 527,644 | 85 |
| Auto Battle Royale (2019) | 105,475 | 4 |
| Auto Chess (2019) | 224,272,440 | 47,137 |
| Auto Club Revolution (2013) | 1,834,923 | 635 |
| Auto Destruct (1998) | 166,836 | 217 |
| Auto Dungeon (2025) | 3,383 | 4 |
| Auto GUI Battler (2025) | 0 | 0 |
| Auto Modellista (2002) | 12,570,623 | 2,359 |
| Auto Montage (2021) | 65,657 | 8 |
| Auto Racing (1979) | 499,634 | 321 |
| Auto RiskRisk (2024) | 18,285 | 9 |
| Auto Sale Life (2024) | 7,157,289 | 1,211 |
| Auto World Tycoon (2022) | 7,413 | 56 |
| Auto-Staccato (2018) | 0 | 0 |
| Autobahn Police Simulator (2015) | 63,886,558 | 1,115 |
