So all Zachtronics games. Also Kerbal space program. Fantastic game, you'll learn about celestial mechanics, the basics of designing rockets (and if you keep pl

So all Zachtronics games. Also Kerbal space program. Fantastic game, you'll learn about celestial mechanics, the basics of designing rockets (and if you keep playing, stuff like the Oberth effect and how to do a nice interplanetary Hohmann transfer )