Pairs.one - No-registration multiplayer online memory game
Call of Duty - Call of Duty is a first-person and third-person shooter series by Infinity Ward.
HaloMD - Play Halo 1 multiplayer online for free (on your Mac)
Counter-Strike - Counter-Strike is a PC-exclusive FPS video game developed by Valve Corporation.
Vainglory - Multiplayer Online Battle Arena (MOBA) made for mobile
Arma - Experience true combat gameplay in a massive military sandbox.