Watch the chaotic Kletka: Echoes Below trailer to see what to expect with this update, which brings new bosses, enchants, familiars, a craft system, and other roguelike-oriented mechanics. Kletka is a co-op (up to 6 players) horror game in which players will take on the roles of convicts doomed to certain death by descending onto the Kletka — a live and very hungry elevator. Feed the elevator, explore the deadly floors and dive into the very depths of the Gigastructure.