| PC/MS-Windows pack. |  A Broken Halo Model 2052150 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. |  A Building Full of Cats Demo Model 2051860 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Building Full of Cats Model 1969080 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Business Power Model 975220 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Butterfly in the District of Dreams Model 617430 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Butterfly's Dream Model 1880640 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Buttload of Free Games Model 1275070 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Cairn Tale Model 2375640 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Call from under the House Model 2365410 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Case of Distrust Demo Model 797560 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Case of Distrust Model 717610 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Case of the Crabs - Rehash Model 1387150 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Castle Full of Cats Demo Model 2136010 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Cat in Dungeons Model 1574620 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Cat Life Model 2234080 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Cat's Manor Model 667430 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Catchy Game - IntraTag Demo Model 2277030 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Catchy Game - IntraTag Model 2084190 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Chair in a Room - Greenwater Model 427760 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Challenge Model 613920 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Chamber of Stars Demo Model 1626330 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Chamber of Stars Model 1624190 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Cheesy Game Model 976970 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Christmas Fireplace Model 767120 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Christmas Peril Model 996650 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Christmas Story From Hell VR Model 1817320 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Christmas Yarn Model 2219160 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Circle Among Squares Model 1635220 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A City Sleeps Model 316180 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Clever Label Model 1627660 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Collection of Bad Moments Model 717120 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Comfortable Burden Model 1432760 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Contusion Demo Model 1987180 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Contusion Model 1805680 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Corgi's Cozy Hike Model 2321250 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Country of One Model 598720 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Couple of Cubes Demo Model 1582150 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Couple of Cubes Model 1582120 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Crazy Guy Model 2414240 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | A Crooked Heart Model 1193490 | 20?? | Steam Valve Corp. |
