| PC/MS-Windows pack. |  Ambrosia | 2021 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Ambush - Convoy Strike Model 1305940 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | American Hero | 2021 | GOG sp. z o.o. |
| PC/MS-Windows pack. |  AMID EVIL Demo | 2021 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Among Waifus 18+ Model 1812070 18 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | An Airport For Aliens Currently Run By Dogs Model 1246250 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Anarchy - Wolf's Law - Prologue Model 1592680 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Andy's Apple Farm Model 1810960 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Angels vs Demons Model 1756490 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Angkor - Runefall Model 1513370 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Anima Model 1833340 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Animals Memory - Monkeys Model 1707770 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Anime Artist - Tiffy's notty secret Model 1647940 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Anime Jigsaw Girls - Christmas Model 1818240 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Anime Jigsaw Girls - Office Model 1810600 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Anime Match Model 1625710 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Anime Street Fight Model 1476420 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Anime Tetris Model 1753220 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Animus - Revenant Model 1676740 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Another Derby! Model 1555070 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Another Eden Model 1252600 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Antimatter Elevator Model 1513460 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Anvil Model 1487390 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | ANVIL_Demo Model 1524240 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Aplestia - Retold Model 1627480 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Apopia - Prologue Model 1648210 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Apotheorasis Prologue Model 1836310 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Aquarist - First Job Model 1584660 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Aquarium Designer Model 1339000 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Aragami 2 | 2021 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Arboreal Model 1493570 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Arcana - Heat and Cold. Season 2 Model 1679870 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Arcano - The Trickery Model 1678760 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Arcante - Definitive Edition Model 1815310 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Archvale | 2021 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Argonauts Agency - Captive of Circe Model 1788900 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Arietta of Spirits Model 1140170 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Ark Mobius - Censored Edition Model 1731520 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Ark Mobius Model 1594090 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Arkham Horror - Mother's Embrace | 2021 | GOG sp. z o.o. |
