Fully Updated and Revised. Traveller is a science fiction roleplaying game of bold explorers and brave adventurers. The Traveller Core Rulebook contains everything you need to create one of these adventures and begin exploring the galaxy. Spaceports, ancient civilisations, air/rafts, cold steel blades, laser carbines, far distant worlds, and exotic alien beasts – this is the futuristic universe of Traveller, the original and classic science fiction roleplaying game. Come visit the far future.