Left 4 Dead Developer Releases Unfinished Campaign For Download
Although it's no longer working on Evolve, Turtle Rock Studios has a habit of supporting their games long after release. Case in point: they've just released a new, unfinished campaign for the original Left 4 Dead.
Dam It, which is available for download via a third-party site instead of through Steam, combines the campaigns of two previously-released campaigns, Dead Air and Blood Harvest. This should not be considered an official release for the game; rather, think of it more as a developer making unreleased content public. As such, it still has several bugs. "It's gray box [which means many of the environments lack proper textures], and some code features are missing," says the Turtle Rock developer who uploaded the campaign, "but it's playable from beginning to end."
The campaign also adds two survival maps that are have also never been released.
[Source: Turtle Rock Forums]
This is such a weird release, but it I'm guessing it's interesting to see if a developer felt the need to make it public.