Thanks to help from the TPKRoleplay community (on Twitch and Discord) we were able to Playtest Generational: A Story about Stories. 

It went AMAZING and I'm so proud of the players. They were super receptive to the game once they got going and by the end I think it became one of their new favorite tools for story-telling. You can see the Playtest and their comments on the main game page through the YouTube embed. I collected some of my thoughts from the experience and created an addendum. They aren't necessarily new rules, but certainly things to think about before and after you play.

I hope you end up using the game in your future endeavors. It's the perfect tool for Collaborative Storytelling and would make an excellent addition to Session 0.