Both Traveller and Thousand Suns ably support what I think of as "working class" sci fi; that is folks traveling around working for a living (and having adventures).I would very much like to see a science fiction setting where the main characters are not members of a military or quasi-military organization, where they don't wear uniforms, have ranks, or call each other "sir" They should have a variety of jobs, and not have to always be saying things like "target their engines. Fire!" Since Star Wars, people have continued to focus on the "Wars" part. Because of this, sci-fi is so often focused on laser fights and big explosions in space. I think as soon as someone begins designing a science fiction RPG, they immediately start thinking about all the cool weapons this game will have. This a problem. A story can be interesting and fun even if it isn't about a war.