Tribal Earth presents a setting of a modern fantasy environment using the CARE system. The setting is based around five major "tribes" of sentient beings that have often-conflicting goals and desires. The setting provides an overview; a timeline; notes on character creation, skills, and equipment; and details about the four mundane tribes, including: Humans, Were, Shaper, and Undead. An additional tribe, Deus, is not available to characters. A few special tribes also are presented, including Mimics, Lichs, and Vampires.