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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Left 4 Dead Split Screen picture Left 4 Dead Split Screen picture Left 4 Dead split screen picture

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.

Left 4 Dead Splitscreen Config

Left 4 Dead Splitscreen Config

6 years ago 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  (10 - 20 of 86)
amand94 Dec 31 2010 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 replied:

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

+2 votes     reply to comment
Midcode Jun 11 2011 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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Lightning098 Nov 2 2010 says:

Sorry to be a noob, but where do i put the xbox360cemu.ini?

+3 votes     reply to comment
zyge55555 Jul 14 2010 says:

how i can play this split screen with logitech whell???????????????????

+2 votes     reply to comment
XX3 Jul 6 2010 says:

Cool! Splitscreen! Good for large screens like TV! :P
I need another keyboard for this. :D

+2 votes     reply to comment
The_L May 26 2010 says:

xD it works without controller and works perfect :P

+2 votes     reply to comment
Kyle07 Feb 14 2010 says:

I have two Problems :(

First: When I unplug the 360-Controller and plug it again after 1 or 2 Seconds, it doesn't work and my Controller isn't Player2! At the first time it worked, but no it doesn't.

Second: When I'm in the campaign, the Coonsole isn't in the menu of the game! Where and how I can type the two cheats "ss_connect" and "cmd2 jointeam 2" without an console?

Please help me.
I have a 360-Controller with Wireless-Connection btw.

+2 votes     reply to comment
Croco15 Creator
Croco15 Mar 23 2010 replied:

Try unplugging and replugging it in a couple times. Sometimes it doesn't work and have you tried to activate the console from the options again, when ingame?

+2 votes   reply to comment
Henry518 Jan 29 2010 says:

everything works fine, but about the controllers... i have a USB Logitech Dual Action, and i have the typical problem. I cant look left or right, and when i use the splitscreen code, it attacks when trying to look left or right. Does anyone have a solution to this problem? im trying to play with splitscreen, so i cant just put the mouse-axis command to the controller's config cause it wont work on both of them.

+2 votes     reply to comment
Mr_Cookies Mar 21 2010 replied:

1=do you pressed the ANALOGIC button before you play ?
=if you did that,so,try my mod for left 4 dead 2 in the left 4 dead 1,may it shold work ,heres the link :

+2 votes     reply to comment
Henry518 Apr 17 2010 replied:

thanks, ill give it a try

+2 votes     reply to comment
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