Arma II

I thought the Arma 2 campaign was pretty good, if a little glitchy. The expansion campaign is rather short, and focused on vehicles. But the real reason to get that game is dayz.

Unfortunately for your wallet, that mod is the reason it is not permanently on sale anymore.

Ah, that's my roommate that plays the shite out of Arma 2, and he likes to build his own scenarios and stuff. TBH I think that game kind of sucks

It's still in alpha, so it's somewhat buggy. The update on Saturday made it incredibly difficult. Honestly, it is almost unplayably difficult at the moment, but I'm sure they will tone it down a little.

Basically, you start with nothing, and have to find food and weapons while avoiding the zombies completely. Once you have a weapon, you can kill a zombie here and there, but gunshots alert nearby zombies & other survivors who may kill you for your stuff. When you die, you lose everything.

EDIT: It is much slower paced and WAY scarier than any other zombie shooter I've played.