Dam It is an unfinished campaign for Left 4 Dead that was made by the original creators of Left 4 Dead, Turtle Rock Studios. It was later released on the website, augerresources.com, on November 7th, 2016 and is available for free exclusively on the PC version of Left 4 Dead. Although it is largely uncompleted, the campaign can be played through in all modes. It consists of only three levels and was intended to bridge the gap between the campaign Dead Air and Blood Harvest. The campaign was released alongside two standalone Survival maps, Coal Freighter and Highrise.