A tower defense game where illuminating the map is key. Play as a group of exiles banished from their homeland who must traverse the forest of the damned in search of redemption. The forest happens to be inhabited by unspeakably horrible creatures of pure evil. Now, in their darkest hour, fleeing the insurmountable horde of undead, the exiles have come to a clearing containing a mystical blue orb radiating light so intense it temporarily drives the horde back. The only question is how long its light will last.