How do you win? As with most of our giveaway contests it's pretty simple:
* To enter, post a comment on this contest page.
* The comment must be left before 11:59 pm Eastern Time on Nov. 25.
* You may enter only once.
* Five winners will be selected in a random drawing.
* Each winner will be emailed a code that is to be used with Valve's Steam client to download and activate a full PC version of Left 4 Dead (valued at $50 each)
* Click Here for complete Official Rules. You must be a resident of the US or Canada (excluding Quebec) who is 18 years or older to enter this contest.
Thanks to EA for the donation of the prizes. Good luck.
Gallery: Left 4 Dead