A Merchants Guide To The Galaxy

you discover that the solar system is actually occupied by a species of aliens, proving once and for all that we are not alone in the universe. however they have only revealed themselves via a series of rustic looking shops so you do the only logical thing. try to exploit the economy. however in your great adventures, you find yourself stuck on a planet, exploit the economy some more to get enough fuel to go home! If for some reason you cannot enter a planet, move away from it and comeback to it...