Custom Campaigns

Custom Campaigns are community-created story lines usually consisting of several chapters, much like the normal campaigns found in Left 4 Dead and Left 4 Dead 2. They are created for PC players only, as Xbox 360 players are unable to play custom content due to various issues between Valve and Microsoft.

Generally, each custom campaign features a "finale", where the Survivors must call for help and face off against the Infected while waiting for rescue to arrive, which generally takes the form of a rescue vehicle, although this is not always the case.

Valve is supportive of custom content created for the Left 4 Dead series, and has even released audio recorded by the voice actors of the Survivors for use in custom campaigns, as well as featuring them on their online blog.

How To Install
Once a custom campaign is downloaded from a site such as L4Dmaps.com or L4Dmods.com, the .vpk file is simply placed into the addons folder found in either Left 4 Dead or Left 4 Dead 2 folders. Campaigns are generally created for a certain game; a campaign created for Left 4 Dead may not always work for Left 4 Dead 2, and vice versa, so be aware which game the custom campaign is for before installing.

For Left 4 Dead 2 content, the Left 4 Dead 2 Add-on Support should be installed via Steam, found in Tools. This will update Left 4 Dead 2 to allow running maps properly. Once installed, it does not need to be run at the same time; it will always be active.

Some custom campaigns may not be encased in a single .vpk file; the file may be a zip or rar file containing a number of .bsp and .nav files as well. In this case, the file will generally have instructions on where to place them, but usually, the .bsp and .nav files, along with related .txt files, will be placed in the maps folder.

List of Custom Campaigns
Here is a list of custom campaigns which have been noted by their creators to be 'complete', or at least in the final build, with no major updates planned unless concerning bug fixes. Descriptions are taken from where the map is found, unless no description was given.