| PC/MS-Windows pack. |  Alpha Protocol Model 34019 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Amber's Airline - High Hopes Model 900050 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Ambition Model 904800 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Among The Dead Model 774451 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Ancestors Legacy Free Peasant Edition Model 720380 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Ancient Frontier - Steel Shadows Model 734730 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Angel and Devil, Ninja, Sushi, Tempura, Panda and The Statue of Liverty Model 923080 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Anicon - Animal Complex - Sheep's Path Model 611390 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Anima Gate of Memories - The Nameless Chronicles Model 850060 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Animals Memory - Birds Model 775910 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Anime and Your Life Model 973240 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Anoix Model 840590 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Another Sight - Hodge's Journey Model 963210 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Another Sight Model 888630 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Ansible Model 964190 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Apollo 11 VR HD Model 953840 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Aquarium Sandbox Model 956480 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Arboreal Model 881300 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Arevoatl Seven Coins Model 861230 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Army of Tentacles - (Not) A Cthulhu Dating Sim - Black Goat of the Woods Edition Model 770380 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Around The World in 80 Days Model 837790 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Art of Murder - Cards of Destiny Model 836770 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Art of Murder - FBI Confidential Model 809000 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Art of Murder - The Secret Files Model 836860 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Asemblance - Oversight Model 809950 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Ash of Gods - Redemption Model 691690 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Ashley Clark - Secret of the Ruby Model 882640 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Ashley Clark - The Secrets of the Ancient Temple Model 912110 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Assassin's Creed Odyssey Model 812140 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Assassination Box Model 551550 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Asteroid Rkd Model 871640 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Atelier Lydie & Suelle - The Alchemists and The Mysterious Paintings Model 756590 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Atelier Meruru - The Apprentice of Arland DX Model 936190 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Atelier Rorona - The Alchemist of Arland DX Model 936160 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Atelier Totori - The Adventurer of Arland DX Model 936180 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Atmotech Episode Praeludium Model 877340 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Attrition - Tactical Fronts Model 656400 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Audio Forager Model 694550 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Audio Infection Model 911580 | 2018 | Steam Valve Corp. |
| PC/MS-Windows pack. | Aurora Model 789720 | 2018 | Steam Valve Corp. |
