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 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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Source Multi-Tool 1.0
Half-Life 2

Source Multi-Tool 1.0

Nov 23, 2013 Garrys Mod Mapping Tool 3 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...

Left 4 Dead


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
Left 4 Dead

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
Left 4 Dead

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
Left 4 Dead

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.

Left 4 Dead 2 Random Map Generator
Left 4 Dead

Left 4 Dead 2 Random Map Generator

Oct 6, 2012 Left 4 Dead Mapping Tool 20 comments

This random map generator for Left 4 Dead 2 mends predefined tiles together to a new level. The project is based on python and includes a crude VMF (Valve...

Post comment Comments  (30 - 40 of 206)
zombieluvar Nov 14 2010, 2:55pm buried:


can't find the stupid pc version!!!!!!!

-7 votes     reply to comment
SirWallyWombat Oct 28 2010, 11:42pm says:

If you want more custom campaigns for L4D & L4D 2, then go to they have alot, infact almost all of them. Its the best place to post your maps.

+5 votes     reply to comment
REENIGAV Oct 21 2010, 12:53pm says:

I have a problem. When i want to play multiplayer it appears loading and when it starts it closes and say there is a problem with the connection. What is going on? I have left 4 dead on steam.

+2 votes     reply to comment
Auth3ntic0 Dec 21 2010, 8:11am replied:

Had the same problem. Turned out to be my modem which was restarting when trying to play on every server. Same happened to every source game. Suggest you change your internet provider like I did.

+2 votes     reply to comment
GmansFan Nov 21 2010, 10:21am replied:

Are you connected to the Internet?

+2 votes     reply to comment
Auth3ntic0 Oct 6 2010, 3:33am says:

- Added VPK audio cache support.

Hell YEA!

+2 votes     reply to comment
Auth3ntic0 Oct 6 2010, 4:25am replied:

It looks like I can't hear the survivors longer dialogues on The Sacrifice for some reason. Anyone know why? Could it be from downloaded maps?

+2 votes     reply to comment
Auth3ntic0 Oct 7 2010, 3:30am replied:

Solved. I had to disable every custom map I had installed and snd_rebuildaudiochache again.

+2 votes     reply to comment
oskars18 Aug 7 2010, 6:11pm says:

I can run this game with my Intel Celeron E3300.i tested recently and and run just fine. without lags. and i think i never get to play this game.but fortunately i can. and now i am happy. i know i previously called this game ****, but now i change my mind. this game is superb. yes this game best played in multiplayer.but i play single player only. i don't much like multiplayer mode.

+4 votes     reply to comment
tymaxbeta Jul 14 2010, 10:45am replied:

Non necessarily, in fact I'm own legitimately over 70 games on steam, and I even get that error at times, it simply means that the servers you attempting to connect to have already has too many clients downloading from the servers, no doubt his error happened during the engy update, that's the last time I had the error, I just switched over to the Toronto servers to download and it was fine, but your claim that he is pirating is totally off the wall because often when a game is pirated it comes with the content necessary to run the game...

+3 votes     reply to comment
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Left 4 Dead
Windows, X360
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Released Nov 16, 2008
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551 votes submitted.

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Highest Rated (3 agree) 8/10

Great zombie game. Quite addictive.

Jul 2 2012, 9:24pm by poshgaloo

First Person Shooter
Single & Multiplayer
Left 4 Dead 2, Released Nov 15, 2009
Left 4 Dead, Released Nov 16, 2008
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