Top games by current player count
Current Players Peak Today   Game
 
807,451 864,633   Dota 2
527,693 590,454   Counter-Strike: Global Offensive
53,709 56,186   Team Fortress 2
43,840 51,732   DARK SOULS III
42,348 59,142   Football Manager 2016
39,722 44,872   ARK: Survival Evolved
33,067 35,581   Grand Theft Auto V
32,491 36,104   Garry's Mod
31,897 39,655   Sid Meier's Civilization V
31,676 33,802   Warframe

Steam Hardware & Software Survey
Steam Stats