My own! It's called Distant Lights, it's a big work in progress, but it's a binary system between a red dwarf and a white dwarf, with like 20-25 landable bodies to be once it's all done
I'll likely make a development thread here on the forums once I put out the first playable alphas (likely within a week or two)
In the meantime, though, I may post some more things on this forum thread