Some suggestions that may have been covered but some planets depending on the make up of the atmosphere would certainly have corrosive/acidic rain. Different planets would also have different gravity, some you would be able to jump high others you would barely be able to jump unless you had some sort of equipment to help you. Final suggestion, planets would have different day and night cycles due to their distance from the sun and the velocity at which they actually spin. The gravity and day/night cycle for each planet would probably be a huge pain in the ass to create. But it would certainly add to realism. Great game have been enjoying it thoroughly.
Oh, yeah! A planet like in the movie pitch black! With long nights and really though and scary monsters coming out at night (well it's kind of the case already but that could definitely be improved in a way night time creatures would be way deadlier than the one during the day).
Mac this is going to be in the game if you read the recent post from the creators they mentioned all of those things
