Found this while serching the net. http://orbit.medphys.ucl.ac.uk/orbit.html I think it will interest some of u, very technical realistic space flight. The sound comes seperate here is the link: http://orbiter.dansteph.com/index.php?disp=d Many addons for this also u shouldnt have a hard time finding them. enjoy
I played it some time ago, very hard game. Only thing that I had well trained was docking to space-station, from near distance. With take-off from launch pad I had problems. To some alt I had good thrust, but then, even with ejecting fuel tanks, space ship was reaching 0 speed and reversing About flying to moon I could dream, that NAV computer was impossible to use even after 100th read of manual