Traveller is a comprehensive science-fiction game system spanning a major portion of the galaxy and reaching far into the future and far into the past. Fundamental to the system are answers to many questions about life, society, and civilization in the universe. Yet everything is part of a cohesive structure that gradually unveils itself... to the participants and to observers (whether they are readers, viewers, or players).
Traveller describes a vast future universe in which mankind has already reached the stars and conquered thousands of worlds, but still faces the never-ending struggle to conquer more worlds and wrest more secrets from the universe.
Traveller uses a foundation of hard science, supplemented by the soft sciences to add character and flavor, and driven by characters, to explore the worlds and cultures of the future universe, all in search of adventure.