User summary: Players in the game each control a tribe of humans, numbering 3d6 individuals. The tribe's goal is to secure Joy, a somewhat abstracted commodity. The larger the tribe, the harder it is to acquire Joy, though other advantages apply to larger tribes. Play utilizes relatively simply resolution mechanics through a series of times phases. The manual includes a character sheet, though it atypical inasmuch as it tracks an entire tribe instead of an individual.