| PC/MS-Windows pack. |  Choco Pixel 4 Model 1275520 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Choco Pixel 5 Model 1307640 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Choco Pixel 6 Model 1339450 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Choco Pixel 7 Model 1359450 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Christmas Tina Model 1049100 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Chronicon Complete | 2020 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Chronos - Before the Ashes | 2020 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Chronotecture - The Eprologue Model 1443030 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Chuusotsu! 1.5th Graduation - The Moving Castle Model 1148930 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | CHV - VR Trunk Escape Model 1339650 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Cinema Simulator Model 1453250 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Circle Empires Rivals Model 1100260 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Circle of Sumo - Online Rumble! Model 1181790 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Circle Up Model 663410 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Circles of Hell Model 1370550 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | City Monsters Model 801760 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | City of Broken Dreamers - Book One Model 1358250 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Clam Man 2 - Open Mic Model 1278360 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Clash - Mutants Vs Pirates Model 822710 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Classic Card Game Canasta Model 1218770 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Classic Card Game Euchre Model 1231750 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | ClickCells - CPU Girls Model 1306260 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | ClickCells - Summer Model 1495990 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | ClickCells - Winter Lady Model 1221030 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Climb Model 1266410 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Clipped Model 1243930 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Close Combat - Cross of Iron Model 1367320 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Close Combat - The Longest Day Model 1272130 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Close Combat - Wacht Am Rhein Model 1272110 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Close To The Sun | 2020 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Close to the Sun Digital Deluxe | 2020 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Cloudpunk | 2020 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Coffee Break Model 1207500 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Coffee Talk | 2020 | GOG sp. z o.o. |
| PC/MS-Windows pack. |  Coffee Talk Demo | 2020 | GOG sp. z o.o. |
| PC/MS-Windows pack. | Coldside Model 1098270 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Colorful3D II Model 1251760 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Coloring Book Model 1431240 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Coloring Game 2 Model 1216200 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Coloring Game 3 Model 1275640 | 2020 | Steam Valve Corp. |
