| PC/MS-Windows pack. |  3 Households Model 2217540 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. |  3 Last Chances Demo Model 2251770 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 3 Last Chances Model 2243470 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 3 Minute Heroes Model 1475460 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 3 on 3 Super Robot Hockey Model 988080 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 3, 2, 1, Survive ! Model 864190 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 3..2..1..Grenades! Model 504090 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 30 Birds Demo Model 1878130 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 30 Birds Model 1708770 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 30 Days Another Demo Model 2359670 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 30 Days Another Model 2125870 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 30 days in red army Model 1995220 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 30 days of plague Model 1260240 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 30 Days to be the Best Model 1908490 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 30 days to survive Demo Model 1340190 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 30 days to survive Model 645270 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 30 minutes to die Demo Model 2132290 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 30 seconds to jail Model 817770 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 30-50 Feral Hogs Model 2215590 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 3001 - A Milf Odyssey Model 2271750 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 300k - The Game Model 1344570 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 303 Squadron - Battle of Britain Model 675170 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 3030 Deathwar Redux - A Space Odyssey Model 464360 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 307 Racing Model 2240780 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 3079 - Block Action RPG Model 259620 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 3089 - Futuristic Action RPG Model 263360 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 30XX Very Pre-Alpha Demo Model 1328080 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 30XX Model 1029210 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 32 in 1 Game Special Model 2132510 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 33 Rounds Model 1194620 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 3571 The Game Model 723020 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 36 apples Model 1202480 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 36 Fragments of Midnight Model 679930 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 36 Questions Model 2406910 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 365 Days Model 576390 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 369 Model 2010310 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 39 Days to Mars Demo Model 1201780 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 39 Days to Mars Model 504920 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 3AM Model 1680530 | 20?? | Steam Valve Corp. |
| PC/MS-Windows pack. | 3C Wonderland Coaster Model 953560 | 20?? | Steam Valve Corp. |
