One of the giants of CO-OP gaming is now available completely FREE for Mac OS X computers. The game is called Left 4 Dead and is the first title in the Valves series. Download it now, bring 4 Dead 2 to Mac OS X and start your battle against the zombies. Big Sister CO-OP is available for free on Mac OS X. So, if you want to have Left 4 Dead 2 Game Of The Year Edition on Mac OS, proceed now to the download section and get your own copy. This version contains all the additional content, DLCs and Add-ONS, all gathered together to build a great game. A “Game of The Year” Edition has been released after a certain time. This means that the players really love this game. It’s one of the few games that has 5 star reviews on Steam and other stores. This game is the sequel to the Left 4 Dead, the first title in the Valve‘s series. Download now Left 4 Dead 2 Mac OS X FREE and start your own battle against the hordes of zombies.