Yeah, i want to be able to have it so that Luna (The moon) can be colonised, which then leads to colonising Mars. I would also like to have it so that Sol (The sun) generates heat, so that the closer you get to it, the more armour the probes you might send there require to function.
As for random events, i'd like to have things like micrometeroite strikes, Gamma ray bursts, space junk and the like.
As for movement, i would like it that the further away from Earth you get your movement turns get longer (it would take more turns to travel to Mars than it would to Luna)
As far as enemies go, i imagine that initially i'd have asteroids and comets, would i be able to simulate orbits for those?
That's all for now.