Zombie Destruction Project Doomsday Survival Doomsday Fortress Doomsday Shelter is a doomsday survival simulation game. The game is presented with better graphics, and players will play in an atmosphere full of weirdness and depression. In addition to staying briefly in the shelter base and fighting zombies outside, the protagonist will often run in the dark rainy night, collect and build items and tools, save refugees in distress, survive, and wait for the sun to come.