cbingham: Does anybody actually know if this exists? I have heard of a project of a fan game in which the hero goes back to Spielburg and things are worse than ever, and it supposedly takes place between the events of "Quest For Glory 4" and "Quest For Glory 5," although I have no idea how that would work since you're summoned to Silmaria right after you're done in Mordavia. Nonetheless, it would be interesting to find this game if it does exist.
I believe it was also made before QFG5 came out (there was quite a gap). It was bizarre; not horribly made for the time (given their reverse engineering of resources before that was a commonly viable thing) but certainly not good. I don't think they were going for a Best Game Ever award; hell, they were probably shooting for the Razzie equivalent.
Mentioning QFG4.5 on the Quest for More Glory forums gets you either a censure which can quickly change into a ban.
EDIT: I take it back. Apparently it came out in 2001, while QFG5 came out in 1998.