Top games by current player count
Current Players Peak Today   Game
 
1,052,296 1,052,296   Dota 2
543,971 611,412   Counter-Strike: Global Offensive
98,903 113,617   XCOM 2
70,069 70,069   Team Fortress 2
60,906 63,118   Football Manager 2016
59,442 59,442   Grand Theft Auto V
51,111 57,491   Sid Meier's Civilization V
48,482 48,482   Rust
46,473 48,239   Garry's Mod
45,164 49,957   ARK: Survival Evolved

Steam Hardware & Software Survey
Steam Stats