Valve’s owner promised the furious fans of L4d that they would release some extra content for the original game before releasing it’s second part.That promise has been kept by Valve as they have announced content upgrade through steam.They said:
We’ve long believed that Left 4 Dead should fully support community content, and we’ve been hard at work enhancing the UI and matchmaking systems to provide full support for your creations. The latest update, which will be available via Steam next week, is focused on custom campaigns.
People who were able to create custom campaigns through beta authorizing tools released several weeks back would now have access to L4D UI’s.There has been several amazing custom campaigns for the game and it will be fun trying all of them as the game features only 5 campaigns.
Addon option has been added in the “extras menu” for the upgrading of the content. As mentioned before the content will be available for download next week.