counter-strike source 2013 multiplayer 

Killing Floor multiplayer

Halo: Custom Edition multiplayer 

battlefield 2 multiplayer 

battefield bad company 2

Call of Duty 2 multiplayer

call of duty 5 world at war + mutliplayer

crysisis

grand theft auto san andreas + multiplayer

counter strike v_34 + multiplayer

Grand Theft Auto IV multiplayer

Halo: Combat Evolved multiplayer

Counter-Strike 1.6 multiplayer

Unreal Tournament 3 multiplayer

Unreal Tournament 2004 Multiplayer

Call of Duty: Black Ops SP + MP + ZM online

Call of Duty 4: Modern Warfare multiplayer

Call of Duty: Modern Warfare 3 multiplayer

battle field 3 + mutliplayer

Counter-Strike: Global Offensive multiplayer

Call of Duty: Black Ops 2 Multiplayer + Zombie

Call of Duty: Modern Warfare 2 multiplayer