Free co-op gameplay that is based on the original Half-life. What more can you ask for? Check it out. It's free.

Not as good as the first but it's still a great pick up nonetheless.

Well crafted survival horror game in space from EA. Great atmosphere and good story line.

Rouge-like survival horror filled with zombies, ghouls and other undead nightmares.

Counter-Strike mechanics with zombies. It's free to play and fun.

Cheap and fun for the price for usually less than $1 whenever on sale.

First person zombie shooter complete with mod support for unlimited fun.

Resident Evil goes back to the series's roots like the older titles in the franchise.

Action based more than horror but still fun and the zombies are all there for the killing.

Play the 5th installment in the series like never before now with Steamworks.