Hurry before it’s too late…Steam is offering Left 4 Dead for free until 11:59p GMT today only. They have also discounted the purchase price by 40% this weekend only. If you’ve never used Steam before, make sure to download the program via the green button on the left side of the homepage before you try to play Left 4 Dead or like a certain blogger you will think something is wrong with the site for a good half hour. Yes, I am an idiot. Happy Zombie shootin’!