Today we make it official, Left 4 Dead and Left 4 Dead 2 on the Mac. Check out the update page for full details.

Once “The Sacrifice” is released this Tuesday, the Left 4 Dead team will celebrate by playing Left 4 Dead 1 and 2 all day. If you want to join us in a game, on the XBOX 360 look for L4D2 DEV 1, L4D2 DEV 2, L4D2 DEV 3, L4D2 DEV 4, or L4D2 DEV 5. On the PC L4D2_DEV_1, L4D2_DEV_2, L4D2_DEV_3, L4D2_DEV_4, or L4D2_DEV_5. Our friends lists are full but you can look for us playing “The Sacrifice”.

Today’s update covers Mutations.

While we are busy watching videos from the Midnight Rider’s Contest today, we are also assembling all our release notes. Besides the content update we have several updates for Left 4 Dead and Left 4 Dead 2 on all platforms.

Today’s update covers achievements. We have the same achievements for Left 4 Dead 1 and Left 4 Dead 2. Should be interesting, which game can get a higher percentage of completed achievements? And exploding barrels?

Don’t forget the cutoff for the Midnight Rider’s Video contest is Midnight tonight PST (Friday Oct 1st). With 160 videos submitted, so many of them amazing, judging this is going to be tough. Thanks to everyone who created a video.

You can use this link to check them out. Vote thumbs up on the ones you like, it helps us see what the community is thinking.

The final chapter of the Comic is coming!

“The Sacrifice” campaign for Left 4 Dead 1 is coming!

“The Sacrifice” and “No Mercy” campaigns for Left 4 Dead 2 are coming!

And? And? And? We set up a page here that we will be updating all weekend on what’s coming, including some surprises! Today’s update is the trailer and some awesome screenshots.

The third issue of the comic is out! We are one week away from the final chapter and the DLC. People have been asking about what is cannon (the official story) – the game or the comic? The Comic is the official version of events, but Left 4 Dead has always been about organic story telling between you and your friends, so we wanted to not force you into one story line in the game. You get to choose the ending and see how it plays out.

“The Sacrifice” is the prequel to "The Passing," and takes place from the Left 4 Dead Survivors' perspective as they make their way South. You may read the comic to find out the official version of events or this October 5th you may play the game to choose your own ending.

Survival Versus, What Form?, What the what?

Versus Survival
Can you survive against your friends?

Part 2 of The Sacrifice.



Next week we will jump into Francis’s back story and see if he always hated things or if the Zombie Apocalypse changed him.

The new featured campaign is City 17. If it seems familiar, it should, it is based on Half-Life 2: Episode 1. While it is may be lacking Gordon, Alyx, and Barney it’s not lacking zombies. And no, they aren't your head-crab induced zombies, these are full on Left 4 Dead 2 zombies.