Pretty fun KSP-like game! Almost everything is modular and can be customized. Autopilot is also really nice with a GUI (Dial-in pitch and heading) and can be even be programmed to the entire ascent. I already saw people making F-14’s, Viggens and Boeing airliners! I already made some simple rockets to get to orbit which is only slightly harder than KSP. For the price it’s a nice little something to tide us over until KSP2 comes out!