I have a small suggestion regarding the Fun Space Game: collecting space junk in orbital space sounds much more interesting, not to mention more plausible. When spacecraft dunking it out in outer space at high speeds explode, all of their component parts tend to scatter around the galaxy until they hit something, even a planet in another solar system 500 years later, since there's nothing to stop them. So the clouds of debris floating in mid-nothingness that you see in Star Trek are a convenient, but ridiculously implausible plot device. Now, I'm not pushing for hard realism here, but embracing this kind of limitation can lead to internal consistency within the game.
For example, deciding that no battles are fought in deep space would make sense since there's nothing there to fight for, and it's not a battle anyone would show up for. This leads to a point-centric setting where population and trade is concentrated around planets, asteroids and space stations, which has many benefits - there is always a backdrop for the space battles which helps maintain orientation, and planets aren't that hard to draw, I suppose; orbital space even for us today is FILLED with debris just floating around, so big (and thick) fields of space junk become not only plausible, but expected; to defend orbital traffic from these debris, local station owners (or insurance companies) would hire some kind of space janitors to keep local space clean and maybe even patrol around for looters; planetary grids of "laser brooms" (a concept being developed even today) that burn the debris out of orbit would be established, which could make for exciting scenes of the pilot evading planetary defense systems; within orbit, ships would have to maintain some reasonable speed, which makes for more believable space combat (whereas in outer space you could engage even at near-light speeds, which would make battles last a fraction of a second); stealth (or at least misdirection) becomes a viable tactic, as ships can hide behind larger debris, behind the planet, mingle with other ships, and so on.
Okay, got carried away again. I read too much Atomic Rocket. But I think this would bring a welcome amount of content in space games. For zipping around the void of space you could always invent some kind of pilotable "afterburner" speeds that could be used to traverse interplanetary distances, but fights themselves there would be awkward. And a little empty.