An action-adventure platformer where you play as a human that must get to the safety of the underground bunker. There are multiple endings depending on the path you take.

Years after the horde have claimed Earth's surface, they find their way into Bunker 4103 - the last bastion of humanity. You awake in a remote part of the underground shelter, and if you want to remain human you must reach the bunker's deepest point: the safe room.