I guess this belongs here to the "Flight Simulators" section: https://www.reentrygame.com/

A simulator of early NASA spacecraft - Mercury, Gemini and Apollo, down to every button, lever and handle. It's in early access and all made (apparently) by one guy in his free time, so I expected a degree of clunkiness, but it's actually not at all bad in this respect. I'm halfway through my Mercury training and so far it's amazing - the level of detail is just incredible. The game manual for Mercury alone has 90 pages.

A simulator of early NASA spacecraft - Mercury, Gemini and Apollo, down to every button, lever and handle. It's in early access and all made (apparently) by one guy in his free time, so I expected a degree of clunkiness, but it's actually not at all bad in this respect. I'm halfway through my Mercury training and so far it's amazing - the level of detail is just incredible. The game manual for Mercury alone has 90 pages.