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How to install custom campaigns and content (addons)

December 10, 2010 - L4D Team

All Left 4 Dead 2 custom content is delivered in VPKs. Content not in VPKs may alter your main content and prevent you from playing on Valve Official dedicated servers.

First exit the game and then you need to download the content. Many providers will place the vpk in a zip file. If that is the case, you will need to open up that file first and copy the vpk from there.

Double clicking on the .vpk file will automatically install that addon. If instead of installing, you are prompted to select what program to open the file with select the addoninstaller commonly found here \steam\steamapps\common\left 4 dead 2\bin\addoninstaller

If that does not work or you prefer to do it manually, you can just copy the file directly into the addons directory loacated here \steam\steamapps\common\left 4 dead 2\ left 4 dead 2\addons

Start your game and now that content will be available for you.

You can disable the addons by either deleting them from the folder or going into the extras -> addons menu in game.