| PC/MS-Windows pack. |  Abnormal Status - Tattoo/Prohibited Books/Parasites Model 2162810 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Above Snakes - Prologue Model 2209150 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | AC-130 - Gunship Operator Model 1466310 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Access Denied - Escape Model 2317300 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | ACL Pro Cornhole Model 1702130 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Address1 Model 2394810 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Administrators Model 1927270 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | ADT Pilot 01 Model 2271810 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Adult Film Maker Model 1812870 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Adult Puzzle - Hentai Aori Model 2360900 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Advanced Intelligence Surveillance Agency Model 1620130 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Adventure Mosaics. Autumn Journey Model 2244450 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Adventure Trip - Amazing World 2 Collector's Edition Model 2293760 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Aenas - Cat and The Sea Prologue Model 2407720 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Aery - Calm Mind 3 Model 2154400 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Aery - The Lost Hero Model 2233730 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Aery VR - A Journey Beyond Time Model 2173650 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Aery VR - Broken Memories Model 2173640 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | AESIR Online Model 2324940 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Aetheris Model 1786010 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | AEW - Fight Forever Model 1913210 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Affinity - Fallen from Paradise Model 2062900 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | AFL 23 Model 2337630 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Afterlife Model 2260630 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Afterlove EP Model 1599780 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Age of Fear - Total Model 431520 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Age of Fear 5 - The Day of the Rat Model 1109660 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Age of Gladiators Reforged Model 2103620 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Agent Roy - Secure The Temple Model 2256650 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Agis Model 2282840 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. |  AI Robolife - Nova Duty 2 - Demo Ver. Model 2282860 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Aida Model 1327310 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Aimtropolis Model 2147360 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | AInder Model 2301260 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Air Model 1551370 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Airtight City 2.0 Model 1692120 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | AIT Model 2297270 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | AK-Xolotl - Wars Model 1581960 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | AK-Xolotl Model 1479140 | 2023 | Steam Valve Corp. |
| PC/MS-Windows pack. | Akaiito HD Remaster Model 2097740 | 2023 | Steam Valve Corp. |
