I forgot how big the minicomputer version was. They ended up splitting the CPM version into several games. Probably couldn't fit the whole thing on a single cassette.
IMHO, this was one of the lost magical things about tapes .. you could just endlessly add lots of them as you needed them, seamlessly even in those days. I recall loading rather large stuff, tape at a time, as an old-school operator in-training and so on ..