Valve has released a new patch of screenshots featuring their highly anticipated game Left 4 Dead (PC, Xbox 360). The shots supposedly take place around an airport but some are obviously on top of apartment buildings in a city.

These shots prove how different the environments are, which should translate to unbelievably fun levels and yet no matter how much we play — none of us who own the game should be bored.

Left 4 Dead will be in stores on November 11th. And don’t forget about the demo which will be available on Xbox Live starting Nov. 6th if you pre-order the game at Gamestop. So if you’re still not sure about this future gem, make sure you check out the demo. Check out the pictures after the jump.