Offworlders

From the introduction: Offworlders is a science fiction roleplaying game about adventurers, outlaws, and guns for hire making their fortune on the rough end of the galaxy. It is designed to be straightforward enough to pick up and be ready to play in just a few minutes as a one-off game, but with enough meat to play a short campaign as well. The player characters in Offworlders are the owners of a small starship in a time when humans have spread to many worlds. Together, they explore the universe, completing profitable jobs and overcoming dangers together.