Developer Certain Affinity (Age of Booty) has announced a new Action RPG for the Xbox Live Arcade, Crimson Alliance. It appears to be a fairly standard four-player dungeon crawler, complete with generic classes and color-coded characters. The first trailer and screens are below for your perusal.
Certain Affinity could break out of the role player slot they have fallen into recently, having worked on multiplayer map packs for games like Call of Duty: Black Ops, Left 4 Dead 2 and Halo: Reach, as well as co-developing the upcoming Halo: Combat Evolved remake. Hopefully we'll hear a bit more before its release that may set it apart from the pack, though really, any co-operative dungeon crawling is good by me.