Penumbra: Necrologue [FULL RELEASE]

[Mudbill]

How would it be distributed? Like, when you download and install it, would it jump into the game's folder or its own? Can it even be in another game's folder? Can it even require another game to be installed?

I guess it could work if this mod only has a folder with a command line file pointing to the other executable, but still, seems tricky to me, but then again I don't know how Steam works exactly.

But if you include the necessary files to run the mod as a stand-alone, then anyone could download it for free which would be an issue for the original game. Sooo... how does it work?