soooooo, heres a thought.... can you make a final upgrade for the planetkiller that takes out the star instead completely removing the system and refunding the base resources as well as providing huge amounts of energy? Also a way to potentially remove megastructures on a star since planetkiller and dyson sphere conflict. This way, if you find a lot of systems you dislike for whatever reason, you can just blow the whole thing away and not have an empty star after you kill the planets. While I'm thinking about it, this is entirely optional but it might be worth increasing the iron and aluminum gained from killed planets. I find it is rarely if ever enough to build a new planet killer even if you blow up 4 or 5.
ok, been playing another 4 days or so.... biggest issue now is money, i thought the ideal source would be gas giants but they are somewhat rare as planets go having at most 3 in a system and more often than not 0. soooo just a thought, maybe rather than just a sort by planets, you could do a sort by gas giants as well? It gets tiresome checking 20 systems to find a few gas giants that may even be on the low end of mineral production..... should i be making mineral planets for my primary income? i got plenty of energy with dyson spheres and now i really just need more mineral income but i hate manual collection.