Good, time-consuming coop games for PC
A friend of mine is coming to town for a few days, and we need new coop games. Suggestions inc!
Strategy games can work, us vs comps or us vs online. I welcome suggestions of strategy games that have good multiplayer and can do teams/coop.
Any coop RPG works well for us, or if anyone has a time machine and can grab Diablo III.
FPS work but are usually limited to online multiplayer. L4D can have multiplayer coop without playing online vs matches, and so is good.
Appreciate the help!