Originally titled "Hero's Quest", the name was changed when there was a clash of copyrights with the board game of the same name. The title was changed to Quest for Glory instead.
Erasmus' house is full of items from other Sierra games: Peruvian onklunk from Leisure Suit Larry Goes Looking for Love (in Several Wrong Places) (1988); the peacock from King's Quest IV: The Perils of Rosella (1988); suit of armor from The Colonel's Bequest (1989); helicopter from Police Quest II: The Vengeance (1988).
The game plot takes place in Western Europe; the season is spring; the central element is Earth; the mythology is Germanic.
One of the plaques in the Adventurer's Guild Hall is dedicated to "Two Guys From Andromeda" - the nickname of Mark Crowe and Scott Murphy, the creators of Space Quest game series.
It is the first Sierra game that allowed the selection of a character out of three classes: Fighter, Magic User, and Thief.