I changed the Hunger Games events to Until Dawn related ones and I think it turned out great. If you are a fan of the game you will love it! You won't be against each other so the districts really don't matter. Just PYN and see who will be the last one standing.
Also, some Hunger Games Script is jammed in there. I can't remove it. Like the feast, so just ignore that and pretend 'Jess runs away from the cornucopia' at the start means 'Jess arrives at the lodge safely'