Advent Horizon: Core Rulebook

Advent Horizon is the definitive Science Fiction role playing game. Completely compatible with the world's greatest role playing game, this book contains all the rules you need to play including 9 new races, 11 new classes, and a host of new skills and abilities. Advent Horizon allows you to fashion seminal heroes of Science Fiction, complete with all the rules you need to adventure in the depths of space or on alien worlds.