| PC/MS-Windows pack. |  Monster Energy Supercross - The Official Videogame 4 Model 1304340 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Monster Girl Fantasy 2 - Exposed Model 1108680 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Monster Hunter Stories 2 - Wings of Ruin Model 1277400 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Monster Seek Ep.1 Model 1437020 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Mosaique Neko Waifus 4 Model 1504020 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Muse: Night Out Model 1487430 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Myst Model 1255560 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Mystery Solitaire - Grimm Tales 3 Model 1624890 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Nevertales - Faryon Collector's Edition Model 1564580 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Orcs Must Die! 3 Model 1522820 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Overcooked! All You Can Eat Model 1243830 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Paint By Numbers Model 1605290 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Pandemic by Prisms Model 1542770 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Pandora - Wild Origins Model 1681490 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Pixel Game Maker Series: Isekai Quartet - Adventure : Action Game Model 1574540 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Pixel Game Maker Series: Medium-Naut Model 1825850 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Pixel Game Maker Series: Osyaberi! Horijyo! Holin Slash Model 1535960 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Pixel Game Maker Series: Puzzle Pedestrians Model 1530280 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Pixel Game Maker Series: Remote Bomber Model 1524170 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. |  Platformer Execute Demo Model 1691690 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | POG 2 Model 1635120 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | POG Model 1602990 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Pro Cycling Manager 2021 Model 1453850 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Puzzle Art - Artiodactyls Model 1786250 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Puzzle Art - Snakes Model 1768000 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | R-Type Final 2 Model 1442820 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Reflected Model 1692280 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Resident Evil Village Model 1196590 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Retro Classix: Gate of Doom Model 1540430 P | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Retro Classix: Wizard Fire Model 1540440 P | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Retro Machina - Nucleonics Model 1582850 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Retroninja Cyberassassin Model 1566570 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Rogue Company Model 872200 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Rogue Glitch Model 1092630 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Rogue Planet 1 - Golden Hour Model 1753250 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Role of Remains Demo Model 1529000 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Rome 2077 - Space Wars Model 1521900 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Room 13 Model 1749800 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Rorys Restaurant - Winter Rush Model 1801920 | 2021 | Steam Valve Corp. |
| PC/MS-Windows pack. | Rorys Restaurant Deluxe Model 1781780 | 2021 | Steam Valve Corp. |
