To celebrate Halloween, we are unleashing L4D2 on the world. Starting this Thursday, the entire game will be free to play for the whole weekend. New players can begin pre-loading now. For long time players, it is time to welcome your new found friends and help them survive the zombie apocalypse. For current players, we created a new achievement. Good Guy Nick - – “Plays games with free weekend players and helps them survive a campaign.” Who is a free weekend player? You’re going to have to talk to each other to find out or you could always let your friends know Left 4 Dead 2 is going to be free this weekend and have them join you. [url=http://www.facebook.com/sharer.php?u=http://www.l4d.com/blog/post.php?id=9170] Spread the word![/url] It’s the zombie apocalypse, bring friends. To preload or install the game, you can click this link.