Cataclysm: Dark Days Ahead is set in a post-apocalyptic world. Struggle to survive in a harsh, persistent world devastated by the invasion of other realities. Scavenge the remnants of a dead civilization for food, equipment, or, if you are lucky, a vehicle. Fight to defeat or escape from a wide variety of powerful monstrosities, from zombies to giant insects to killer robots and things far stranger and deadlier, and against the others. Many survivors have mutated but retain their sense of self.