Counter-Strike: Source

3,350 hrs

Counter-Strike 2

3,124 hrs

Counter-Strike

2,875 hrs

Call of Duty: Modern Warfare 2 (2009) - Multiplayer

2,073 hrs

Call of Duty: Black Ops - Multiplayer

1,983 hrs

Call of Duty 4: Modern Warfare (2007)

1,886 hrs

Call of Duty®: Modern Warfare® 3 (2011) - Multiplayer

1,881 hrs

Call of Duty: World at War

1,799 hrs

Call of Duty: Black Ops II - Multiplayer

1,739 hrs

Call of Duty: Ghosts - Multiplayer

1,728 hrs