Set in the immediate aftermath of the zombie apocalypse, Left 4 Dead's survival co-op mode lets up to four players blast a path through the swarming zombie hordes and terrifying mutant monsters. Guide your survivors across the rooftops of an abandoned metropolis, through rural ghost towns and pitch-black forests in your quest to escape a devastated Ground Zero crawling with infected enemies.

New technology dubbed the "AI Director" is used to generate a unique gameplay experience every time you play. The Director tailors the frequency and ferocity of the zombie attacks to your performance, putting you in the middle of a fast-paced, but not overwhelming, Hollywood horror movie.

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Blog RSS Feed Post news Report abuse Latest News: Introducing the Source Filmmaker!

22 comments by Maxen1416 on Jun 27th, 2012

The Source Filmmaker (SFM) is the movie-making tool built and used by the staff at Valve to make movies inside the Source game engine. Because the SFM uses the same assets as the game, anything that exists in the game can be used in the movie, and vice versa. By utilizing the hardware rendering power of a modern gaming PC, the SFM allows storytellers to work in a what-you-see-is-what-you-get environment so they can iterate in the context of what it will feel like for the final audience.

To celebrate the announcement of the SFM, They've also released "Meet the Pyro", the ninth installment in the "Meet the Team" series. Like all of Their animated shorts, They made it using the SFM.

If you're interested in making movies and games in parallel, sign up for an SFM beta key and start shooting your movie on location inside the world of TF2 today.

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L4D1 raf arcade mod july 2014

L4D1 raf arcade mod july 2014

Jul 13, 2014 L4D RAF ARCADE MOD Full Version 0 comments

the mod is updated to the lasted version of L4D , this mod does'nt need to be installed by others players

Source Multi-Tool 1.0

Source Multi-Tool 1.0

Nov 23, 2013 Mapping Tool 5 comments

I've been working away at this for quite awhile now and after many revisions I'm happy to release version 1.0 of the new Source Multi-Tool. Source Multi-Tool...



Nov 22, 2013 L4D RAF ARCADE MOD Full Version 2 comments

6 players (instead 4), more ammo, more zombies, for multi-players games others players don't have to install the mod !

The Chalet v1.1

The Chalet v1.1

May 5, 2013 The Chalet Full Version 0 comments

Fixed bug that causes the game crash. Removed some conflicting elements.

The Rescue

The Rescue

May 4, 2013 The Rescue Full Version 2 comments

Survivors must wait for rescue in the central square, but the infected lurk.

The Chalet

The Chalet

May 4, 2013 The Chalet Full Version 0 comments

Survival map where survivors must defend a villa from the hordes. This is my second map for Left 4 Dead, the first I'll upload shortly.

Post comment Comments  (60 - 70 of 208)
Pvt.Midnight Aug 4 2009 says:

i want the old left 4 dead its cool

+1 vote     reply to comment
Izrachy Aug 14 2009 replied:

Is there an old one ?

+2 votes     reply to comment
francolun Sep 28 2009 replied:

the beta version

+2 votes     reply to comment
hippo24 Jul 30 2009 says:

Has valve said anything about l4d2's sdk?

+1 vote     reply to comment
[UK]RookieAndrew Nov 7 2009 replied:

SDK will be released with L4D2.

+1 vote     reply to comment
Afnopo Aug 2 2009 replied:

Negative, but I bet the current Left 4 Dead SDK will work for Left 4 Dead 2, or at least it better!

+1 vote     reply to comment
Shirk Nov 3 2009 replied:

It doesnt work :(

+1 vote     reply to comment
Afnopo Jul 29 2009 says:

When Left 4 Dead came out, people where bitching and complaining about there not being enough content for the game, now Valve is making more content and people are bitching and complaining about that now. Get your priorities straight.

+2 votes     reply to comment
Daishi2442 Jul 29 2009 replied:

I'm bitching and moaning because they promised DLC content, not an entirely seperate, full-price retail game. Everything they've shown so far could easily be imported to L4D in a large update.

+2 votes     reply to comment
RockerFox Sep 20 2009 replied:

ok really this argument has been beat like dead jackass (donkey). Like really your getting a new god dam campaign, got ******* survival mode, what more do you want? An arm? Also putting in what they have now would break the balance of the game, cause you to have to download like a ******* gb or 2 at least of content and not to mention you will still bitch that there is something missing so really get off it you cry baby

+1 vote     reply to comment
Sanjuaro Sep 29 2009 replied:

What argument? That there should be an SDK for Left 4 Dead 2? I wasn't aware that was being debated or argued. Coming from a Valve game it should be something expected. When you say something like that then you're implying that you dislike mods. If so then why are you even on ModDB? Don't flame or make comments like this without thinking about what you're typing. It makes you sound like an idiot.

+2 votes     reply to comment
Shirk Aug 6 2009 replied:

Think of the ******* hl2 series, Hl2 ep2 why are you mad that valve didnt make it free expansion for hl2?

+1 vote     reply to comment
Herterich Aug 4 2009 replied:

They already gave a dlc for l4d and another is on the way... and im sure they will add more to l4d after l4d2 since they are working on making it cross compilable so you can play online with ppl from both games.

0 votes     reply to comment
Afnopo Jul 31 2009 replied:

Well they aren't going to do what you said, so no need for all this crying.

+2 votes     reply to comment
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Left 4 Dead
Windows, X360
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Released 2008
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First Person Shooter
Single & Multiplayer
Left 4 Dead
Left 4 Dead Single & Multiplayer First Person Shooter
Left 4 Dead 2
Left 4 Dead 2 Single & Multiplayer First Person Shooter
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1 year ago
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