Query from a colleague:
Can anyone identify an sf book, published before around 1990, in which the protagonist is put into a simulation game setting where he becomes a medieval character, and ends up conquering most of the known world a la Genghis Khan? (My colleague has a vague memory that Fred Hoyle was the author, but this seems unlikely.)
Thanks in advance.
It’s entirely possible that you had seen Earthshock first, where it is also a major plot point. But I don’t think gold is otherwise even mentioned in other Cybermen stories.