TUCSON, Ariz. (13 News) - Matt Dinniman’s “Dungeon Crawler Carl” series has exploded in popularity since the first book was released in October 2020, with book eight dropping last week. Dinniman, a University of Arizona graduate and Sabino High School alum, said the series has been increasing in sales every month since August 2024, when traditionally published versions began appearing in bookstores. That timing coincided with TikTok discovering the series.