Download now: br br State of Decay is a 3rd person zombie-survivalaction game developed by Undead Labs and published by Microsoft Studios. The end of the world has come, and players must explore an apocalyptic landscape while fending off hordes of zombies. The environment is an open-world that evolves over time, generating varying content depending on player actions. Players can set up a fortified safe area, form raiding parties, create supply chains, and collect resources.