| PC/MS-Windows pack. |  Burnin' Rubber 5 HD Model 420660 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Business Tycoon Billionaire Model 881930 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | C:\CMD 2048_ Model 922090 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Cabals - Magic & Battle Cards Model 458410 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Cadria Item Shop Model 883860 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Caliban Below Model 649890 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Call of Cthulhu Model 399810 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Can You Survive? The Game Model 876580 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Candice Debébé's Scandalous Secrets Model 941540 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Casey Powell Lacrosse 18 Model 584150 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Castle - Jigsaw Puzzles Model 860880 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | CastleGuard Model 961240 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Cave Digger Model 844380 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Chess Puzzles Model 874380 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Chinbu's Adventure Model 755570 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Chiptune DJ Model 899020 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Chocolate Makes You Happy 7 Model 892880 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Choice of Broadsides - HMS Foraker Model 928830 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Choice of the Vampire - The Fall of Memphis Model 776020 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Christmas Clicker - Idle Gift Builder Model 978670 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Chronicles of Mystery - The Tree of Life Model 837090 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Chuckie Egg 2017 Challenges Model 959700 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Chuusotsu! 1st Graduation - Time After Time Model 630870 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Cinderella VR Model 935720 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Circle Up Model 835660 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Circles of Hell Model 831740 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Citadale - The Ancestral Strain Model 963170 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | City Builder Model 843780 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | CityBattle - Virtual Earth Model 611020 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Civil Warfare - Another Bullet In The War Model 734590 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Clad in Iron - Sakhalin 1904 Model 963680 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Clark - Hoova VR Model 626700 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Classic Card Games 3D Model 941920 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Climb Model 876900 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Close Combat - Last Stand Arnhem Model 936530 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Close Your Eyes - Anniversary Remake Model 706710 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Clue/Cluedo - The Classic Mystery Game Model 794800 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Cognizer Model 711690 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Cold War Model 834490 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Colina - Legacy Model 371650 | 2018 | Steam Valve Corp. |
