In The Eternal Cylinder, players control a herd of adorable creatures called Trebhums and must explore a strange alien world filled with exotic lifeforms and surreal environments. All whilst the constant threat of the Cylinder, a gargantuan rolling structure of ancient origin which crushes everything in its path, looms. In this unique alien ecosystem, real-time world destruction, animal AI, organic exploration, and puzzle design all combine to deliver an unforgettable adventure. (mobygames.com)