Daniel - I'm intrigued by your concept here but freely admit that I'm about as stumped as you are.
You may try this link for some ideas: https://community.articulate.com/articles/a-behind-the-scenes-look-at-how-i-designed-this-gamified-quiz
Or these: https://articulate.com/support/article/Storyline-360-Manage-Scoring-for-Question-Banks-with-Branching and https://articulate.com/support/article/Storyline-360-Allow-Learners-to-Review-and-Retry-Only-Incorrect-Questions
I think what you want to do is possible but will require a good deal of branching based on variables that depend on the user score. So your initial idea of one bank with multiple topic questions may not be best. If you limited your first bank to one topic, then you would be in a better position to direct the user to an appropriate second bank, I think. That would also permit you to draw more questions about the (failed) first topic if need be.
Good luck!
Thank you Joe. I'll experiment with your suggestions!
