It's barely been a week since the hotly-contested, highly-anticipated sequel to Valve Corporation's zombie-survival game, Left 4 Dead 2 (Xbox 360, PC), has been released, and already, we're hearing talks of a sequel to the sequel. Are we going to hear of another round of boycotts, then?

Here's the very first TV spot for Valve's Left 4 Dead 2 (Xbox 360, PC) -- and GameStop's pre-order bonus offer. Yep, it's not just about the games now, it's also about which store can give you something exclusively -- and what that store could give to you exclusively.

Valve has sent out official release dates for the Left 4 Dead 2 Xbox 360 and PC demos. The majority of gamers will get them in early November, but those who pre-ordered will get them this month.

It looks like Dead Center and Hard Rain are indeed the last two campaigns in Left 4 Dead 2 (Xbox 360, PC). Both have been spotted in a list of achievements unearthed by the folks at Xbox360Achievements. The 50-achievement list gives out a total of 1,000 points and also gives us a glimpse at some new features, including a defibrillator that can be used to revive dead Survivors.

A few days ago, we reported about a PS3 listing for Mass Effect 2 (Xbox 360, PC) spotted on both an Australian online retailer and Electronic Arts' Russian website. BioWare wasn't too forthcoming about the listing, but EA is being a bit more talkative. Problem is, what they're saying doesn't bode well for those who got super excited.

Taiwanese website NGG seems to have unveiled the last two campaigns for Left 4 Dead 2 (Xbox 360, PC), which I think were intended by Valve to be kept a secret until later. Oh well, the cat's out of the bag, and it's not like we mind, considering how sweet the package is. Posters and details after the jump.

Valve is confident that Left 4 Dead 2 (Xbox 360, PC) will give them a hefty return of investment so much so that they have no qualms forking out US$ 25 million for their consumer advertising plan. And why shouldn't they be confident? Their pre-orders alone already guarantee the game's success.

Valve's Left 4 Dead 2 (Xbox 360, PC) is just the latest casualty of the Australian Office of Film and Literature Classification's stringent -- and, for most Australian gamers, draconic -- adherence to their ratings guidelines. Publisher EA Australia said last week that they're "still working through the submission process with OFLC." It seems they've since become much more candid about the issue, however, as they've finally issued a comment.

Valve's doing good on their promise to release more updates for Left 4 Dead (also on PC). Still being the "I'll-believe-it-when-I-see-it" type? Then log in to your XBL account now and see that a patch did arrive today.

Moving along in our PAX 2009 coverage done in cooperation with the fine folks at Left4Friends, we're taking a look at Left 4 Dead 2 (Xbox 360, PC), Valve's much-contested follow up to last year's Left 4 Dead. Hit the jump for videos of zombified murder machines getting blasted to bits along with some tips on what you should do when a Jockey latches onto you (Protip: screaming like a girl isn't it).