The Eternal Cylinder is a surreal survival-adventure set on an alien world constantly threatened by a colossal rolling cylinder that crushes everything in its path. You guide a group of strange, adaptable creatures called Trebhums, evolving their bodies with mutations to survive shifting biomes and predators.

Exploration and puzzle-solving are built around swapping abilities on the fly, letting you climb, swim, or reshape your creatures to fit the challenge ahead. The constant looming threat gives the open world a tense rhythm between calm discovery and urgent escape.