| PC/MS-Windows pack. |  Car Racing - Highway Driving Simulator Model 2146450 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Card Storm Idle Model 1734280 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Cardboard Town Model 2198070 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Carnage Offering TD Model 2298300 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Case 03 - True Cannibal Boy Model 2084180 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Castle - Daybreak Model 1714100 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Castle of the Underdogs - Episode 1 Model 847780 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Cat Boy Creator Model 2315660 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Cat Girl Creator Model 2302650 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Cataclysm - Dark Days Ahead Model 2330750 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Catacombs - The Beginning Model 2233900 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Cats Hidden Around the World Model 2377970 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Cats Hidden in Bali Model 2356500 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Cats Hidden in Italy Model 2313240 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Cats Hidden in Paris Model 2313250 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Cats in Heat - Summer Fling Model 2278780 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Cattails - Wildwood Story Model 1882500 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Cave Crawler - A Retro Exploration Adventure Model 2113880 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Cave Crawler Model 2282480 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Celebrity Slot Machine Model 2183710 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Celestiais & Dragões Model 1787740 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Cell Machine Indev Model 2435630 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | CGI - The Game Model 2251930 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Chameleon Gems Model 39300 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Champions of Midgard Model 945570 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Changeling Charade Model 2235670 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Changeling Tale Model 1232870 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Charades Movie One Model 1832370 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Charged - RC Racing - Starter Edition Model 2393660 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Chef Life - A Restaurant Simulator Model 1122340 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Chernobyl - Death May Die Model 2151860 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Chess Dungeons - Shubousha Model 2118010 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Chickenoidz Super Party Model 1989770 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Chief Emoji Officer Model 2287350 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Chieftain's Daughter Model 2244560 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Chimeras - Blinding Love Collector's Edition Model 2282310 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Chinese Chess Party (Xiangqi) Model 2336550 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Chinese Frontiers - Prologue Model 2317910 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Chroma + Elektron Model 1020550 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Cities - Skylines II Model 949230 | 2023 | Steam Valve Corp. |
