Maybe a good list to pick a new clone from, or a place to visit when brainstorming.

A component of interactive fiction and role-playing games.

A stucture for a story requiring a player quality-check to proceed down the narrative's forks, with some quality-change as a result of completing it.

Feels like getting explicit about the changes to the game state, lifting that part of the game up to a first-class citizen.

Useful for letting writers create mini-stories (QBNs) and drop them all into a pool for the player.

Then the player can then string together their own path based on potential QBN ( quest?) requirements and rewards.