ZX81 Lunar Lander

Guide the Lunar Excursion Module down to the landing zone safely. The landing zone is marked by five inverse video Ls. To complete a successful landing you must have zero forward velocity, and an altitude rate of no more than 1. The right hand portion of the screen has a semi authentic Apollo Guidance Computer readout - which is set to the PROG 66, VERB 6, NOUN 60 - these are the same as in the real Apollo mission. PROG 66 is the program ran when in the "terminal descent stage" of the landing VE...