| PC/MS-Windows pack. |  Island Saver Model 1210250 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Jolly Good - Cakes and Ale Model 1393910 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Joyfess Ep1 - Martin's Secret Recipe Model 1095700 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. |  Land of Chaos Online II - Revolution Alpha Stage Model 1211290 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Landflix Odyssey Model 794850 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Lawnmower Game - Next Generation Model 1346980 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Lawnmower Game - Racing Model 1433890 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Learn Game Development Model 1294220 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Legendary Knight Model 1240240 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Leisure Suit Larry - Wet Dreams Dry Twice Model 1373430 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Lock 'n Load Tactical Digital Model 1149940 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Locked In Model 1415480 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Loop Model 1460290 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Lost Remnant - Roaches to Riches Model 1386020 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Lost Remnant - The End Tides Model 1380310 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Lost Model 1398900 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Man Face Spider I Model 1260690 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Man in Gravity Model 1386810 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Mana Gloom Model 1453660 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Mana Maker Model 1409020 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Masters of Puzzle Model 810360 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Medal of Honor - Above and Beyond Model 1402320 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Medieval Engineers Model 333950 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Mega Man Zero/ZX Legacy Collection Model 999020 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Mod and Play Model 1127460 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Monster Energy Supercross - The Official Videogame 3 Model 1089830 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Mortal Glory Model 1097530 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Mosaique Neko Waifus 2 Model 1299120 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Mosaique Neko Waifus 3 Model 1385730 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | My Neighborhood Arcade Model 1400980 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Mysteria - Occult Shadows Model 662960 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Network E.L.E. Model 1217630 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Pancake Sailor Model 1274800 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Pandemic - The Virus Outbreak Model 1325960 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Pixel Game Maker Series: STEOS - Sorrow song of Bounty hunter Model 1456440 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Pixel Game Maker Series: Werewolf Princess Kaguya Model 1479370 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Pro Cycling Manager 2020 Model 1178400 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Resident Evil 3 Model 952060 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Retro Model 1235810 | 2020 | Steam Valve Corp. |
| PC/MS-Windows pack. | Rogue Aces Deluxe Model 1371710 | 2020 | Steam Valve Corp. |
