Even though I only played the 360 version, I can't say I enjoyed the game a lot, it was competent but was frustrating. Right now I'm hooked on Fallout: New Vegas so I'm not doubling up on an okay shooter.  

I'd just like to take this opportunity to say once again Steam know how to make an enticing offer.

These sort of deal have lost their effect on me because I know that in just 2 months it will be back on sale for Christmas. I'll wait and hope.

Great game for a great price.

" These sort of deal have lost their effect on me because I know that in just 2 months it will be back on sale for Christmas. I'll wait and hope. "

Also: 
 
http://store.steampowered.com/sub/2487/  
 
L4D1 + L4D2 for £11.49 (or approx $18.103644).

Too bad fallout just came out.

I bought it and booted it up for like 30 mins, and wow it's an amazing looking game.  Puts my gtx 480 to work.

It's not perfect but has some interesting mechanics and great atmosphere. More deserving of your money than Medal of Honor for example!

Good thing I didn't buy this game until now. For me the game is $13 and if it was for $20, I would of said okay. Even if the game sucks, at least it's nice to play a game with this much graphics, for the pc version.

I don't really get the bad reviews for the game, maybe the 360 version is what they played or maybe it has been patched and some things have been altered but two of the most common complaints (in reviews) are: 
 
- Poor gunplay 
- Poor AI 
 
I've not had an issue with either, the AI is nothing special, but AI in most games is nothing special. So I don't see the big deal, had no bugs or anything that's made me think the AI is bad, just seems standard. 
 
The gunplay is great, I don't get the hate for it. I think it's really precise and has a lot of weight to it, kinda suits this game as it's very gritty.  
 
I don't think you can go wrong for $13, it's more interesting than your typical 'Afghanistan clone' FPS campaign. Hopefully the sequel will be even better!

bumpity bump, 75% off for 2 days now. Been waiting for it to be on offer so i could pick it up (missed this offer last time around)

God damn it.  Valve is determined to vacuum up all my money.