The board game: Take the biggest massively multiplayer online role playing game and take out about half of those words, and you've got World of Warcraft: The Board Game. It's definitely massive though--you get nearly 1000 different cards, tokens, chits, figures, and other components, and games take at least four hours to play through. Hey, at least you're interacting with other humans in the same room while you play--that's something, right?
Why it works: Players break off into teams of Alliance and Horde, and scour the lands of Azeroth, gaining experience and loot as they try to defeat the "Overlord." Warcraft lore flavors each of the different cards, classes, and items you find, and the game makes a grand attempt at evoking the sense of scale in World of Warcraft--honestly, all that's really missing from it are lag, raid queue times, and the horrors of trade chat.