Sas: zombie assault 4 starts where the third installment ended. it's the year 3104, and a virus outbreak in the trans-federation planet thera is threatening mankind. choose one of the 3 available classes, develop their skill tree and combine it with thousands of weapons and armor pieces in order to get rid of the zombies. play your way through 7 challenging stages by yourself or in multiplayer mode, with up to 3 more users. save what's left of our civilization!
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