Anyone wants to waste a lot of time, i mean a real lot of time! Here's a glimpse of what orbiter is all about with the virtual AGC
Installing the right version, getting the right modules, loading the right textures, downloading and installing (all manual install of course) the mfds, going through all the checklists, learning the CSM and LM panels, and getting it stable so it doesnt crash windows.
Then you are ready to try a mission.
https://youtu.be/sHaS6sYJsMg
http://nassp.sourceforge.net/wiki/Main_Page
http://orbit.medphys.ucl.ac.uk