| PC/MS-Windows pack. |  Loop Model 2346490 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Loop Model 2365200 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Lost Alone Ultimate Model 2341330 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Lost Dream - Darkness Model 2310760 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Mama Die and Retry Model 2211800 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Mammon - Devil Help Model 1726100 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Man Without Organs Model 1935340 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Mana Fortress Model 2338550 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Mana Launcher Model 1570940 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Mana Valley Model 1983360 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Mega Man Battle Network Legacy Collection Vol. 1 Model 1798010 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Mega Man Battle Network Legacy Collection Vol. 2 Model 1798020 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Microcosmum 2 Model 1486140 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Might & Magic - Clash of Heroes - Definitive Edition Model 2213300 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Minecraft Legends Model 1928870 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Mocap Fusion VR Model 1540000 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Mocaverse Model 2324000 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Monster Energy Supercross - The Official Videogame 6 Model 2058750 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Mortal Fighter Model 2105370 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Mortal Glory 2 Model 2216660 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Mortal Kombat 1 Model 1971870 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Mortal Kombat Kollection Model 205350 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Mortal Meal Model 1690560 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Multiplayer Cowboys Model 2303720 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Multiplayer Military Model 2420230 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Multiplayer Shooter FPS Model 2364570 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Multiplayer Turtles Model 2423830 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Multiplayer Werewolves Model 2292940 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Multiverse Designer Model 1068500 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Multiworld Model 1593980 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Murder Is Game Over - Streaming Death Model 2291880 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Mysteries of Shaola - The Princess Must Die Model 2145290 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Mystery Case Files - The Last Resort Model 2394980 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Netorare Wife Yukiko - 20 Years After Marriage Model 2351810 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Nina Aquila - Legal Eagle, Chapter IV: Sacred Feathers Model 2124200 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Odyssée Numérique Model 2323260 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Pan'orama - Prologue Model 2231790 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Pan'orama Model 1730250 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Para Normal Commute Model 2264840 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Payday 3 Model 1272080 | 2023 | Steam Valve Corp. |
