Cataclysm: Dark Days Ahead is a roguelike set in a post-apocalyptic world. Surviving is difficult: you have been thrown, ill-equipped, into a landscape now riddled with monstrosities of which flesh eating zombies are neither the strangest nor the deadliest.

In the course of your ordeal there will be opportunities and temptations to improve or change your very nature. There are tales of survivors fitted with extraordinary cybernetics giving great power and stories too of gravely mutated survivors who, warped by their ingestion of exotic substances or radiation, now more closely resemble insects, birds or fish than their original form.