If you'd like to try out some of these concepts on your phone, I've been working on a side project -- an iOS mobile game called Solar Express [1]. You can launch a rocket, rendezvous and dock in orbit, transfer between moons and planets, and land. It's a bit like a mini-KSP with real orbital mechanics, but more casual - no rocket building, and lots of delta-V to play with.

[1] https://apps.apple.com/us/app/solar-express/id1503449353