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  (60 - 70 of 86)
Igoreshkin Oct 11 2009, 3:37am says:

I have only one controller.where can i find:

Index=0 ----> Index=-1" ???

+1 vote     reply to comment
Croco15 Creator
Croco15 Oct 11 2009, 1:20pm replied:

Well, I only have a 360 controller, so I can't help people that don't that much, but I believe its in the "xbox360cemu.ini" from the link in the summery.

+1 vote   reply to comment
loser667 Oct 10 2009, 5:01am says:

What if you have two mice and two keyboards? Is there anyway you can play split screen like that?

+1 vote     reply to comment
Croco15 Creator
Croco15 Oct 10 2009, 12:40pm replied:

Well, I found this: I hope its helpful.

+1 vote   reply to comment
Colts Oct 9 2009, 2:40am says:

Heyy Don't Forget to made this mod when L4D2 has release :)

+2 votes     reply to comment
Croco15 Creator
Croco15 Oct 9 2009, 10:15pm replied:

I won't, I'm really excited for Left 4 Dead 2.

+1 vote   reply to comment
maniacmoop Oct 7 2009, 10:50pm says:


+2 votes     reply to comment
russianguy Oct 7 2009, 6:12pm says:

sunds nice and left4dead rocksssssss bought it on sale for half than paying 30 steam rocks

+2 votes     reply to comment
Croco15 Creator
Croco15 Oct 7 2009, 5:21pm says:

I FIGURED IT OUT! I edited the instructions so you can see. We have split screen again!

+1 vote   reply to comment
ACEBL33D Oct 1 2009, 8:52pm says:

well it is not going to work for steam users because steam took it out in there latest update i had it working for me and my sister to play and with this new update it does not work anymore so i hardly think it will work at all but if anyone else can figure it out tell us how

+1 vote     reply to comment
Croco15 Creator
Croco15 Oct 3 2009, 5:55pm replied:

You're right. I'm working on a fix.

+1 vote   reply to comment
maniacmoop Oct 7 2009, 10:49pm replied:

Dumb ****, its PERFECT!

+2 votes     reply to comment
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