I am not sure how tarot-based it is, since it uses its own special reading of the tarot cards, but moonflower uses tarot cards (the major arcana) as a mechanism of coming up with a scene’s worth of story. Players draw five cards when each Chapter begins and use three as story hooks. The chosen cards’ readings are mixed with each other to come up with a Chapter’s starting points.
In a way, the tarot is used to replace the GM’s role as the person who comes up with story hooks. I kinda like how it does its own thing!