Now you can be there live in SPACE … Que up An der schönen, blauen Donau
Very nice! I think their Apollo plugin is based on the Virtual AGC project which has some good introductory material
It’s also been ported to create this in-browser Apollo experience:
Moonjs: An Online Apollo Guidance Computer (AGC) Simulator
(BTW this is the TSS/8 thread: Connect to a PDP-8/e running TSS/8.24 and this is the (1976?) lunar landing program available on that machine.)