Ok, these satellites(not moons) have a high probability of supporting life. Europa has an extremely high chance of supporting an entire, evolved ecosystem. The surface would be pretty plain with a bunch of cracks and shards of ice. Water vapor plumes occasionally... anyway. What are you going to stand on when visiting saturn or jupiter? I know the game is sci-fi so maybe they could just "imagine" jupiter and saturn as rocky planets and not what they are, gas giants. That would give it some terrain. Europa and Titan are not planets lmfao........ hahahahahahahahahaha That made me lol