Left 4 Dead developer Turtle Rock Studios has released its final, unfinished campaign for the zombie shooter, and you can play it right now. All you need is Left 4 Dead and an internet connection to download the files.
Co-founder Chris Ashton posted a link to the campaign on the Turtle Rock forums, saying that the studio had "just finished putting the Dam campaign ... into a L4D add-on."
"It's gray box, and some code features are missing, but it's playable from beginning to end," he wrote. "It also includes two standalone survival maps that never shipped."
Dam It stitches Dead Air and Blood Harvest together.
