Fntastic, the developers that (initially) brought us The Wild Eight, launched a new game on Steam Early Access last month in the form of the multiplayer FPS/action title, Dead Dozen. While the main focus is an interesting blend of PvP and co-op where dead teammates get back up as ghouls (still controlled by the player) that attack their former friends. Today, they release an update titled "Escape" that adds a new strictly co-op mode.