Turtle Rocks Studios has released an unfinished campaign level for the original Left 4 Dead. Dam It is a gigantic scenario that combines Dead Air and Blood Harvest, ending with a climax in a hydroelectric dam. Although some of the scripting is not enabled, the scenario is playable once it’s added to Left 4 Dead as a mod. Turtle Rock co-founder Chris Ashton announced the release on the Turtle Rock forums, and the download page includes some developer commentary providing insight into the design of the project.
Turtle Rock Studios recently stopped supporting Evolve, after completing the game’s transition to a free-to-play business model on PC.