Unfortunately I never came up with a good title for this, and furthermore it defies categorization in any established taxa of interactive entertainment.
Here’s the best way I can describe it: Obviously you have enjoyed watching or listening to people play Dungeons & Dragons on YouTube or whatever, but you’ve never experienced it first-hand. By listening to this audio file you can play Dungeons & Dragons with me. (Kind of. I had to make a few adjustments to the D&D rules to accommodate the unconventional format.)
I would really appreciate it if any listeners could come up with some terminology to describe this new form of interactive fiction I’ve invented.