The universe of Traveller is one of the most fully realized game settings ever created. Adventures take place against the background of a vast, star-spanning empire, with a history dating back over a thousand years. Locales can range from a crowded spaceport to a lonely frontier outpost.
Characters can be merchant princes, diplomats, soldiers, politicians, criminals . .
Political intrigues, trading schemes, mind- wrenching alien enigmas, mercenary raids, wars . . . Traveller rapidly became the standard against which other SF roleplaying games were judged, and influenced many other designs in many other genres. The game went through several editions over the years, and quite a few changes were incorporated along the way. One of these was the Rebellion, something GDW did to bring conflict and excitement to campaigns that had become dull and mundane. In the 1116th year of the Imperium, Emperor Strephon was assassinated by a rival, and the Third Imperium split into several factions.