Gurps: Planet of Adventure

Tschai is a world where four alien species compete to see who will rule... and where humans have been bred to be slaves. Jack Vance's classic Planet of Adventure series has thrilled science fiction fans for decades, and now Tschai is a hot new roleplaying setting! In GURPS Planet of Adventure, play one of the strange alien beings inhabiting Tschai, or play a man fighting to return to Earth and warn humanity of the peril it faces.