I heard today that Dean Hall, creator of DayZ, and RocketWerkz, developers of games like Icarus and Stationeers, are working on a "KSP killer". Been here before so I'm not getting too excited but after digging around a little it sounds like the right people are saying - and maybe even doing - the right things to make something worthy of the description. We'll see. Starting by ditching unity and using their own 3d engine to take advantage of Vulkan and mutiprocessing is a very good start IMHO. Having an 8/16 core CPU and still only getting 30fps and 20% GPU usage because the game engine (Unity, for KSP) can't handle anything more than a single thread is a ridiculous waste of modern hardware and one of my biggest complaints about the original game.