From publisher blurb: The Traveller Companion is here... This book is the ultimate toolkit for Traveller campaigns, allowing referees and Travellers to pick and choose the best additions for their adventures and explore the galaxy in greater detail than before. From alternate Traveller creation systems and training to gas giant operations and starports, from the effects of gravity and diseases to animal encounters on alien worlds and the use of transponders, there is a wealth of new rules-based material for all Traveller campaigns, ready to be unleashed on every new world, every starship, and every group of Travellers.