I saw a mod called more planets and tried it.it always crashed my game so I was thinking. when you get done with our solar system maby making the triple binary system alpha centauri (yes theres 3 stars.one like ours the second smaller but still yellow and the last one is a brown dwarf.)of course no habitable planets. 3 mercury like planets, only bigger.2 Jupiter like planets. just some thoughts, no rush.