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Im bummed they are Audible exclusives since I deleted my entire Amazon account this year. But I've heard really good things about the audiobooks

Soundbooth theater has a full cast version of it, of course with Jeff Hayes, the narrator of the audiobooks. https://soundbooththeater.com/series/dungeon-crawler-carl/

These are amazing but they've only done the first three books so far. Once they release them all it will be a good reason to revisit the series!