I was teaching some 11-14 year olds to write choice based #interactivefiction this year, and at one point in the course I ask if there are any #ttrpg players (answer: always yes so far).

Then I propose that choice based fiction has a lot in common with with #ttrpg but one huge difference that changes everything for the author/GM: the magic moments in #ttrpg are when the players have their characters solve a problem in a way the GM never thought of, but is perfect for those characters in that game. While the magic in choice games comes when the author offers a choice the player would never have thought of, but is perfect in light of the choices made in this play of this game.

Which means in #ttrpg your role as GM is to encourage the explosion of possibilities, while in choice it is to make all the possibilities special (which requires them to be limited).

Interestingly, they all agreed without hesitation that unexpected in character problem solving was exactly what was magic in #ttrpg compared to #crpg