Oh! I forgot #9, which I've had on my mind for over a year now.
Your question here... Multi Public
9. Prince Valiant -- a medieval tournament, where players all create knights who will complete in single combat, jousting, and a grand melee. For the right to be the tourney champion! There would be a little RP around the feast the night before, trying to earn favors and learn weak points and such as well, but mostly it would be a PVP game moderated by yours truly. I've done something like this before with Fate and enjoyed it, but frankly the Prince Valiant rules are better suited and easier for everyone to learn. Don't let the ancient cartoon ward you away, as I initially did, the Prince Valiant RPG is a Greg Stafford gem!