| PC/MS-Windows pack. |  Aphelion Headhunters Model 2372440 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Aphotic Descent Model 2364090 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Apocalyptic Slant Model 1891080 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Apocalyptic Vibes Model 1840610 | 2023 | Steam Valve Corp. |
| Nintendo GBA cart. | Apotris Hb | 2023 | Akouzoukos |
| PC/MS-Windows pack. | Aquascaping Designer Model 2242370 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Araka - JK Exorcist Horror RPG Model 2231560 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Arcana - Heat and Cold. Stories Model 2426310 | 2023 | Steam Valve Corp. |
| Arcade Video game | Arcana Heart 3 Lovemax Sixstars!!!!!! Xtend | 2023 | exA-Arcadia |
| PC/MS-Windows pack. | Archery Simulator Model 1264420 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Arena Renovation - First Job Model 1907350 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Arena Renovation Model 948880 | 2023 | Steam Valve Corp. |
| Sega Genesis cart. |  Arkagis Escape - trial version | 2023 | Sik |
| PC/MS-Windows pack. | Armored Core VI - Fires of Rubicon Model 1888160 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Army of Tentacles - (Not) A Cthulhu Dating Sim 2 Model 1082690 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Army of Tentacles - Assault On Rainbow Unicorn Island Model 1877720 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Arobynn - Below The Surface Model 2389770 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Art-Therapy - Portraits Model 2363080 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Artemis Model 1775530 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Artificial - Prologue Model 2352050 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | As Talk As Walk Wayfarer Team - Land of Music Model 2332050 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Ascend Model 1036570 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Ash of Gods - Arena Model 1295480 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Ash of Gods - The Way Model 1293460 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Ashen Knights - Foreshadow Model 2008200 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Ashen Knights - One Passage Model 2021230 | 2023 | Steam Valve Corp. |
| Arcade Video game | Asphalt Moto Blitz DX | 2023 | IGS Co., Ltd. International Game System |
| Sega Genesis cart. | Astebros Hb | 2023 | Neofid Studios |
| PC/MS-Windows pack. | Asterelis Model 1084130 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Asteroids - Multiplayer Model 2335340 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Astronaut - The Best Model 1239950 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Astronomic Date Model 2290250 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Asura Model 2293900 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Asura Model 2389830 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Asura's Trial Model 2317080 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | ATCo2 Model 2108400 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Atelier Marie Remake - The Alchemist of Salburg Model 2138090 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Atelier Ryza 3 - Alchemist of the End & The Secret Key Model 1999770 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Athenian Rhapsody - Thunder Goober's Personality Dungeon Model 2202710 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | ATNRPG Model 2420690 | 2023 | Steam Valve Corp. |
