The new Cold Stream DLC for Left4Dead 2 has just been released: all four original campaigns from L4D1, the new Cold Stream campaign, and apparently 20 fan-made campaigns (I'll have to check that out asap). I mean....if there's anyone who doesn't have this, now's a good time. 75% off on a midweek Steam sale right now.
That is a lot of quality zombie survival horror FPS action for $5.
If anyone gets this and wants to play send me a message on Steam. I think you can find me by my handle, which is: Camazotz, Lord of Xibalba