If you have never heard of the phenomenon that is tabletop role-playing games (or TTRPG to insiders), it may come as a shock that this low-fi, fantasy-based leisure activity is not the niche pastime you may imagine it to be.
While there are certainly elements of nerdy appeal to TTRPG (as depicted in sitcoms like The Big Bang Theory, for example), its global following has legions of mainstream fans who gather, usually in-person, for regular gaming sessions where, with the help of a few simple prompts, their imaginations alone lead them to create stories and adventures that could be carried on for weeks, months or even years at a time.