KSP is really good for exploring gravity assists, actually – they work just the same way in the Keplerian 'patched conics' approximation as in real life. For Ne

KSP is really good for exploring gravity assists, actually – they work just the same way in the Keplerian 'patched conics' approximation as in real life. For Newtonian physics, there's Orbiter, which is much more of a simulation than a game; it puts you in our own Solar System, for one thing. http://orbit.medphys.ucl.ac.uk/ http://orbit.medphys.ucl.ac.uk/