Who has heard of Kerbal Space Program, or KSP? Well, it is a fun rocket physics game in which you build a rocket to launch spacemen to the Mün (their version of the Moon). It is very fun with endless possibilities. Try it for yourself. There is a free demo version online at https://kerbalspaceprogram.com/. There is also a paid version which has many more features and parts for spaceships.
I've got a few ships and satellites orbiting Kerbal already and always look forward to adding more. I definitely recommend spending the few $$ to get the paid version as it has so many more parts and a career gamemode which is currently in development.
