> The Riftwar Saga by Raymond E. Feist (Magician, Silverthorn, A Darkness at Sethanon), while not an officially licensed D&D tie-in, is based on a D&D campaign

> The Riftwar Saga by Raymond E. Feist (Magician, Silverthorn, A Darkness at Sethanon), while not an officially licensed D&D tie-in, is based on a D&D campaign the author played in at UCSD in the 1970s. The books are set 500 years before the campaign IIRC. Midkemia Press put out several RPG supplements including several describing places in the Kingdom: https://www.midkemia.com/ https://www.midkemia.com/ > I think the Malazan Book of the Fallen by Steven Erikson is also based on an RPG campaign, which started out as D&D then switched to GURPS. That's interesting, I couldn't imagine how you'd fit the breadth and depth of character abilities from the books into something like D&D.