| Aqua Forest 2 (2009) | 52 | 2 |
| Aqua GT (2000) | 99,860 | 153 |
| Aqua Jack (1989) | 64,038 | 137 |
| Aqua Kitty - Milk Mine Defender (2013) | 217,564 | 230 |
| Aqua Lungers (2018) | 90,960 | 27 |
| Aqua Moto Racing (2009) | 42,395 | 44 |
| Aqua Moto Racing Utopia (2016) | 875,577 | 672 |
| Aqua Panic ! (2015) | 215,959 | 147 |
| Aqua Populo (2022) | 3,086 | 9 |
| Aqua Racer (1985) | 94,468 | 119 |
| Aqua Rush (1999) | 127,326 | 89 |
| Aqua Teen Hunger Force Zombie Ninja Pro-Am (2007) | 366,809 | 277 |
| Aqua Vita (2007) | 171,163 | 6 |
| Aquaculture Land: Fish Farming Simulation (2022) | 78,391 | 37 |
| Aquadine (2021) | 42,644 | 127 |
| Aquales (1991) | 18,563 | 62 |
| Aquaman: Battle for Atlantis (2003) | 11,009,399 | 354 |
| Aquaman: War of the Water Worlds (1996) | 684 | 6 |
| Aquamarine (2022) | 3,328,677 | 522 |
| Aquanaut's Holiday (1995) | 345,246 | 148 |
| Aquanaut's Holiday: Hidden Memories (2008) | 495,092 | 235 |
| AquaNimble (2016) | 1,171,936 | 5 |
| AquaNox (2001) | 3,511,354 | 683 |
| AquaNox 2: Revelation (2003) | 423,752 | 612 |
| AquaNox: Deep Descent (2020) | 3,195,667 | 981 |
| Aquapark Tycoon (2025) | 129,113 | 66 |
| Aquapazza: Aquaplus Dream Match (2011) | 1,979,678 | 1,760 |
| Aquaria (2007) | 1,907,443 | 1,126 |
| Aquarist (2022) | 3,986,836 | 1,308 |
| Aquarist VR (2022) | 4,060 | 27 |
| Aquarium (1996) | 265,167 | 168 |
| Aquarium at August 32nd (2024) | 1,886 | 7 |
| Aquarium Designer (2021) | 540,057 | 386 |
| Aquarium Land (2024) | 13,990,369 | 586 |
| Aquarium Travels (2022) | 318 | 4 |
| Aquarius: An Aquatic Experience (2007) | 28 | 1 |
| AQUARYOUNS World (2019) | 1,596 | 3 |
| Aquascaping Designer (2023) | 62 | 1 |
| The Aquatic Adventure of the Last Human (2016) | 807,866 | 395 |
| The Aquatic Games (1992) | 103,246 | 165 |
| Aquatic Rampage (2021) | 216 | 2 |
| Aquatic Store Simulator (2024) | 409,041 | 451 |
| Aquatico (2023) | 9,793,792 | 1,496 |
| Aquatron (1983) | 995 | 4 |
| Aquaventura (1992) | 16,725 | 13 |
| Aquaventure (1983) | 211,555 | 93 |
| AquaZone: Life Simulator (2006) | 6,273 | 7 |
| Aquia (2008) | 960 | 2 |
| Aquila Bird Flight Simulator (2020) | 27,190 | 27 |
| Aquillanto (2022) | 6,020 | 4 |
| Aquilon's Sex Quest (2025) | 425 | 2 |
| AR Games (2011) | 8,168,268 | 308 |
| Ar Nosurge (2014) | 706,893 | 1,086 |
| Ar Nosurge: Ode to an Unborn Star (2014) | 1,359,845 | 1,304 |
| Ar Tonelico 2 (2007) | 928,948 | 1,547 |
| Ar Tonelico II: Melody of Metafalica (2007) | 4,638,256 | 2,466 |
| Ar Tonelico Qoga (2010) | 6,519,177 | 2,677 |
| Ar Tonelico: Melody of Elemia (2006) | 2,564,779 | 3,881 |
| Ar'Kritz the Intruder (1996) | 6,833 | 4 |
| AR-K (2014) | 9,861,242 | 2,496 |
| Ara Fell (2016) | 465,074 | 1,856 |
| Ara: History Untold (2024) | 5,938,988 | 2,102 |
| Arabian (1983) | 267,483 | 193 |
| Arabian Fight (1992) | 810,446 | 380 |
| Arabian Magic (1992) | 511,287 | 299 |
| Arabian Nights (1993) | 8,610,766 | 134 |
| Arabian Nights (2001) | 654,531 | 27 |
| Arabians Lost: The Engagement on Desert (2006) | 6,737 | 25 |
| Arachnophobia (1991) | 5,359,713 | 426 |
| Aragami (2016) | 32,232,813 | 14,800 |
| Aragami 2 (2021) | 15,746,619 | 15,737 |
| Araha : Curse of Yieun Island (2020) | 3,161,810 | 286 |
| ARAIGNEES (2021) | 322,037 | 19 |
| Arashi: Castles of Sin (2021) | 757,081 | 415 |
| Arata Haunted Asylum (2022) | 9 | 1 |
