Adhain
TBA
Online Co-Op Multiplayer, Online Versus Multiplayer, Cross-Platform Play
AFL 23
Apr 13, 2023
Online Co-Op Multiplayer, Offline Co-Op Multiplayer, Offline Versus Multiplayer, Online Versus Multiplayer, Cross-Platform Play
Age of Empires II: Definitive Edition
Nov 14, 2019
Cross-Platform Play
A Long Survive
Oct 30, 2025
+2
Online Leaderboards, Online Co-Op Multiplayer, Online Versus Multiplayer, VR, SteamVR, Cross-Platform Play
Among Us
Jun 15, 2018
+2
Online Co-Op Multiplayer, Cross-Platform Play, Steam Deck Playable
Among Us 3D
May 6, 2025
Online Co-Op Multiplayer, Online Versus Multiplayer, Cross-Platform Play, Online 10-Player Multiplayer
Anarkade
Sep 23, 2024
Online Versus Multiplayer, Cross-Platform Play, Split-Screen Multiplayer
Animula Nook
TBA
Online Co-Op Multiplayer, Cross-Platform Play
Apico
May 19, 2022
Online Co-Op Multiplayer, Cross-Platform Play
Arizona Sunshine Remake
Oct 17, 2024
+3
Online Co-Op Multiplayer, VR, SteamVR, Cross-Platform Play, PlayStation VR2
Arkanoid: Eternal Battle
Oct 27, 2022
Online Leaderboards, Offline Co-Op Multiplayer, Online Versus Multiplayer, Cross-Platform Play
Arkheron
TBA
Online Versus Multiplayer, Cross-Platform Play
ArmA Reforger
Nov 16, 2023
Online Versus Multiplayer, Cross-Platform Play
AstroBrawl
TBA
Online Co-Op Multiplayer, Online Versus Multiplayer, Cross-Platform Play, Local Four-Player Multiplayer, Online Four-Player Multiplayer
Astro Hunters VR
Aug 8, 2024
+3
Online Co-Op Multiplayer, Online Versus Multiplayer, VR, Cross-Platform Play, PlayStation VR2
Astromine
TBA 2026
Online Co-Op Multiplayer, Online Versus Multiplayer, Cross-Platform Play
Astrosmash
Oct 12, 2023
Cross-Platform Play, Local Four-Player Multiplayer
Athena Crisis
Sep 23, 2024
+1
Online Co-Op Multiplayer, Online Versus Multiplayer, Cross-Platform Play
Autonomica
TBA
Online Leaderboards, Online Co-Op Multiplayer, Online Versus Multiplayer, Cross-Platform Play, Steam Workshop
Bandit Trap
Apr 30, 2026
Online Co-Op Multiplayer, Online Versus Multiplayer, Cross-Platform Play