We are less than a month away from the release of Valve's next major game, the co-op zombie shooter Left 4 Dead. The game's official web site has posted up some new action filled screenshots of the game and Valve has separately released some new shots that show off the user interface Left 4 Dead will have.

In addition, Shacknews has a slightly revised set of PC system requirements for the game. There's just one major change from the previous list that was announced; the graphics card's memory requirement has been lowered from 256 MB of RAM to just 128 MB of RAM. That should make a lot of gamers with older systems happy. Left 4 Dead is still set for a Nov. 18 release date.