Four hundred and twenty years after the Cataclysm, the Earth is unrecognizable. The physics that governed the old world are unreliable now. Monsters, demons, aliens, and machines that were never built by human hands roam freely across the wreckage of whatever civilization used to exist. The people who survive in this environment are called Hunters. The player is one of them—and the premise is that being one of a handful of Hunters in a world like this is simply the current definition of being alive.