As a kid I somehow stumbled into Discworld first by playing the point-and-click PC game where Rincewind was voiced by Eric Idle (probably after much fumbling through soundcards settings). This is how I discovered the book series and have been a fan ever since. Such amazing books on so many levels!
Same for me! Except I played it on PS1. I didn’t find out about the book series until like 10 years after. For better or for worse I now have a picture in my brain for Rincewind, Twoflower, and The Luggage purely based on the game. But still love it.