Soooo, how about this. Very similar to the Zombie tournaments that Slayer ran, but hopefully a bit simpler and easier to run.
It'll be a D&D style tournament! It will also involve team gameplay.
Teams will be made up according to D&D style characters; Fighter, Mage, Rogue, and Cleric. Each team will need one of these classes as part of their dungeon delving group.
Just like in the Zombie tournaments, there will be a few NPCs that have to be beaten. These will be minibosses as you progress through the dungeon. When the team comes upon one of these minibosses, it has to be beaten by at least 2 out of the 4 team members! Double-tapping will be allowed, as well as team-tapping (attacking consecutively before the opponent can heal.)
There'll be puzzles to pass which can unlock weapon tiers and spell tiers, as well. Puzzles will require 3/4 of the team members to submit a Chatmail with the correct answer in order to unlock - so share your answers with each other, but not with opposing teams!
This tourney will essentially be "first team to finish the dungeon wins" since nobody likes to share the treasure at the end of the crawl. I can provide more details if needed, and I'd be happy to provide the graphical portions of this tourney (map of the dungeon, as well as individual levels with puzzles.)
How's that sound?