Traveller is a science fiction role-playing game first published in 1977 by Game Designers' Workshop. Marc Miller designed Traveller with help from Frank Chadwick, John Harshman, and Loren Wiseman. Editions were published for GURPS, d20, and other role-playing game systems. From its origin and in the currently published systems, the game relied upon six-sided dice for random elements. Traveller has been featured in a few novels and at least two video games.
Characters journey between star systems, engaging in exploration, ground and space battles, and interstellar trading. Characters are defined not by the need to increase native skill and ability but by achievements, discoveries, wealth, titles, and political power.
Traveller uses a lifepath-style system for character generation. Characters get skills and experience in a mini-game where the player makes career choices determining the character's life up to the point before adventuring begins.
A character can be human, robot, alien, or of a genetically engineered species. A character can be civilian, military, or noble, a young cadet, or a tried-and-true veteran, each with strengths and weaknesses. Death during character generation is possible in some editions, a mechanic that became infamous.