In this campaign you'll be playing in the Rhea subsector. A section of about 40 star systems with worlds.
Common Traveller themes include and combine the following:
You'll take on the role of merchants, buying low, moving cargo, and selling high. Maybe you'll have a bulk cargo line, a tramp freighter wandering around the systems, or a fast courier for hire.
Or go the lawless route and take from the merchants while avoiding the navy. You'll need a hideout (or three), a way to sell off hot goods, and ways to find profitable shipments. Oh and don't forget about competitors.
Perhaps you'd rather explore the worlds. Find rare species, explore frontiers, and go boldly where very few have gone before. Find some patrons to fund the expeditions, maybe even take some of them along for an up-close and personal experience.
Maybe you'd rather put your military training up for sale to the highest bidder. World governments and corporations often look for some muscle to help get their point across and hazard pay is good pay.
With all of these star systems, why not create your own colony? Stake a claim (or chase off someone), build the infrastructure, and go out to find settlers to join.
Six things you should know about the Setting: