A strange acid rain carrying an unknown virus fell for seven days and seven nights. Humanity vanished. The cities fell. The dead began to walk. But the animals survived. And some of them evolved. Now, as one of the few intelligent survivors left in the wasteland, you'll fight to protect civilization's final hope: an unfinished rocket project capable of ending the acid rain catastrophe once and for all. But before that day comes... You'll have to survive. Build Defenses Construct defensive structures to strengthen your base against increasingly dangerous threats. Protect the Energy Core The Energy Core keeps your base running and powers civilization's last hope. Defend it from relentless zombie hordes at all costs. Recruit Mercenaries Hire mercenaries to strengthen your base defenses or accompany you on expeditions and battles. Survive the Apocalypse Fight your way through the wasteland, complete missions, and endure a world devastated by acid rain and the undead. Scavenge the Wasteland for Resources Explore dangerous ruins, defeat zombies, and bring valuable resources back to your base. Every expedition helps you survive another day. Chill with Friends Chill with friends in different multiplayer gameplay after a hard fight in the wasteland.