This one is cool, and we've messed around with it a bit, but never really played a proper campaign yet.
X-Crawl (Modern High Fantasy)- Half Dungeons and Dragons, half reality show, half SmashTV, half Running Man, half fantasy, half sci-fi and enough balls to manage all six halves. Battle horrible monsters for fun and profit as well as your five minutes of fame on TV. Winners are sports heroes and losers are piles of goo.
Campaign: Battling it out in dungeon after dungeon, competing with other teams for trophies and the money to go with it. Fairly straight forward with combat, puzzles and a little bit of showboating for the cameras.