Reminds me of this amazing (for the time) book which taught me a ton about the topic when I was in my first year at uni learning c++
https://books.google.at/books/about/Flights_of_Fantasy.html?...
This will go nicely with "Methods of Orbit Determination for the Micro Computer" (1991) which published by AFIT and has some incredibly useful simulation content...with examples in BASIC
Why's GitHub repo is full of useful things for game devs, especially Unity but also C++. https://github.com/brihernandez/Ergo is maybe most relevant to this post for being a C++ implementation of a basic 3D space shooter engine built on raylib.