L4D2(LEFT FOR DEAD 2- is the sequel to Valve's L4D ,duh, however , I am sick of people complaining on how it should be DLC. 1. Valve didn't have to make any kind of sequel / DLC they are not obligated to do anything!, its a BONUS, Thank You , Valve for making another game , so that I my enjoy with my friends. 2. I understand that this sequel, is coming strait off the heels of the first one, but thats the nature of the video game industry BIGGER ,FASTER ,BETTER, stop complaining,......or your head will explode. 3. Some think its just a rehashed L4D, well duh, that's what sequels are, in a sequel, there is a slight differences, to make the gameplay better (melee weapons ,new maps, new game types.......*L4D2*) 4.If you want to play you have to $PAY$, if you dont want to pay $60 on a game DON'T do it. I'll pay 60 bucks to enjoy L4D2's badass-ness, and you can be a idiot and still be cheap.........NO L4D-2 FOR YOU!!!!