Comment: One of my favorite games is Fireboy and Watergirl- I think it has a story arc- based architecture where we get to observe the characters, paths, and the story overall evolve. I do think it also has an interaction. loop with the players since with each level, the player learns more about how the capabilities of the characters, like how far they can jump and how flexible their movements are, and then apply these mental models to solve new problems with new levels.
