Due to it's gas giant state most of the action on our Mass Effect Roleplay's Saturn ends up on 13 of it's moons. The harsh conditions on the moons have turned them into hostile environment training facilities for the various militaries of the Sol System. All the races have respective rights to the different moons, with the Systems Alliance maintaining rights to it's largest, Titan. The areas not used for military purposes are dedicated to mining for hydrocarbons.