This is partly my work. TheBusGuy figured this out and I figured out the fix.

When valve made Left 4 Dead, they didn't include split screen for the PC, but they did include the code for it. In this I will show you how to get the split screen code working.

You will need an Xbox360 controller. I will address what to do if you have a different controller later on.

The first step is to download the code, its in the download tab.

Plug your controller in. Then open up your 360controller.cfg file, its in your "\left4dead\cfg" folder. Copy and paste the code you downloaded over the code in the 360controller.cfg.

Okay, now open up the game, open the console, and type "Exec 360controller.cfg" without the quotations. Then use "ss_splitmode 1" or "ss_splitmode 2", to set the split screen mode. "ss_splitmode 1" is horizontal, and should be used for regular monitors. "ss_splitmode 2" is vertical, and should be used for dual monitor setups and wide screen monitors.

You need to have the controller set to player 1. Start/join a game and as soon as the loading screen appears, unplug the controller, wait a few seconds, and plug it back in before the game starts. That should switch it to player 2.

Now type in "ss_connect", player 2 will connect and start spectating. To make him join a team type "cmd2 jointeam 2". That should fix the update glitch and work perfectly.

If you have a different controller than an xbox360 controller, you will have to download an emulator from Then set up the controllers as you want them to be set up.
If you only have a differant controller, then go in the "xbox360cemu.ini" and set index to -1


Index=0 ----> Index=-1"
then scroll down and set pad 2 index to 1

this should make your one controller bind to player 2.

That is it! Enjoy!

P.S.- If I forgot anything, or if you have something to add, let me know!
There is a hack/code like this one for Unreal Tournament 3 at

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0 comments by Croco15 on Oct 7th, 2009

I have figured out how to get split screen working after the DLC/update. I updated the summery, so you can take a look at that now. I doubt you care, but it took me three days of messing with it, to figure it out. I have also added a video, to make it easier to understand. Enjoy having split screen back!
Sorry for the horrible quality.

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Left 4 Dead Splitscreen Config

Left 4 Dead Splitscreen Config

Sep 29, 2009 Source Code 4 comments

This is the code I mentioned. You NEED this to get it to work. So, go ahead and download it.

Post comment Comments  (0 - 10 of 86)
powermind Mar 3 2013, 1:39am says:

(Removed Comment)

-1 votes     reply to comment
powermind Mar 3 2013, 1:13am says:


0 votes     reply to comment
ShanoaXAlbus Jun 2 2011, 10:20am says:

BTW... mah Email is:

please send instructions on how to make it work!

+2 votes     reply to comment
ali6g Mar 18 2011, 10:08pm says:

hey croco i need some help i have other controller than 360 i have editted the .ini fil now i dont know what to do with that file please help me tell me step by step process for mycontroller thank u my brother

+2 votes     reply to comment
orzecho1994 Jan 30 2011, 1:54pm says:

What about 4 players co-op split screen?

+2 votes     reply to comment
dadey60 Feb 11 2011, 9:31pm replied:

their is no 4 player split screen not even on the xbox :'(

+3 votes     reply to comment
amand94 Dec 31 2010, 4:56am says:

Hi! I need Help L4D2 Splitscreen Mode! I have Logitech Dual Action, and I know the left analog left and right, go back and forth, but the right analog up and down I can only watch if I pull to the left, then shoot, if I pull to the right, then beat, and If a button is pressed, the man turns 180 degrees, I can not rotate! Plz Help! Thank you! PS: Sry, I do not speak English, translated by Google Translate :S Thx!

+2 votes     reply to comment
dadey60 Feb 11 2011, 9:33pm replied:

l think you can only do it if you have a xbox 360 controller

+2 votes     reply to comment
Midcode Jun 11 2011, 8:40am replied:

I did it with a PS2 controller and a converter on Left 4 Dead 2.
It worked pretty much fine. Two controllers worked as well.

+1 vote     reply to comment
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