In The Eternal Cylinder, players control a herd of adorable creatures called Trebhums and must explore a strange alien world filled with exotic forms of life and surreal environments. While the constant threat of the Cylinder, a giant rolling structure of ancient origin that crushes everything in its path, looms. In this unique alien ecosystem, real-time global destruction, animal artificial intelligence, organic exploration, and puzzle design come together to offer an unforgettable adventure.

Your Trebhums start at the bottom of the food chain, but they can mutate and evolve new physical characteristics and abilities by consuming a variety of flora and fauna. Discover and evolve dozens of mutations, including new traversal skills like flying and swimming to reach new areas and new senses to overcome puzzles and dangers. Your many Trebhums can all have different mutations, giving you the ability to create a unique herd. Each mutation will also change the physical appearance of a Trebhum, and their combination will create amazingly new creature designs that players can organically discover as they explore this different alien world.