Valve would like to wish everyone a Happy Halloween this evening by sending us a video treat. The following is the intro movie for the highly-anticipated (and heavily pre-ordered) zombie, co-op FPS Left 4 Dead. Join the 4 survivors as they make their way through the infested city 2 weeks after the first infection.

Left 4 Dead infects the Xbox 360 and PC November 18th.

Left 4 Dead Intro Movie 

Valve shows off one of the first parts of their $10 million dollar marketing campaign, with the release of this slick new tv spot for Left 4 Dead.  Created with elements of the game's intro sequence, this spot is just a preview of the coming TV marketing campaign which begins November 8th.  Why so hotly anticipated? Zombies? 4-Player Co-op? Intense action?

Find out for yourself, when you're running and gunning for your life in the zombie apocalypse November 18th on the PC and Xbox 360.

Left 4 Dead TV Spot #1

Valve releases a couple of new screens for versus mode in the survival-horror, co-op FPS Left 4 Dead for the PC and Xbox 360. Resident Evil Outbreak fans might remember the joys of turning undead to enact revenge on their former comrades (particularly those who aided in their death). However, this time around a full-on versus mode will pit 4 human players using the Survivors against 4 human players utilizing Infected with special powers amongst a swarm of AI-controlled common Infected.

Left 4 Dead swarms store shelves on November 17th.

Click the image below for the Left 4 Dead image gallery.

Left 4 Dead image gallery

Pre-orders for the PC version of Valve's upcoming action, zombie-masher title, Left 4 Dead, are now available via Steam. Similar to retail reservations, Steam pre-orders of the game will also receive a 10% discount when the title launches this November 18--reducing the price to $44.99 USD.

A demo for the title is still expected to arrive around the title's release. Left 4 Dead will be available for the PC and Xbox 360.

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