Crimson Alliance, that Certain Affinity-developed four-player dungeon crawler that was officially announced last week. It looks like pretty standard hack-and-slash fare, with three different players (color-coded, seems like) bashing, casting, and slicing their way through dungeons of baddies, collecting the sweet, sweet loot that drops from their corpses.
We would say something here about how constantly fighting wave after wave of enemies in dimly-lit dungeons eventually gets boring, but you know what? If the quality and polish are there when they need to be, it doesn't. It really doesn't.