steamthe-stanley-parable-2011
So I decided to download The Stanley Parable after seeing it mentioned in an old review video I was watching. I downloaded the zip, extracted it to the steam/steamapps/sourcemods folder, restarted Steam so it would show up, and when I click "play", nothing happens. Literally nothing. There are no new processes starting and getting hung up, I don't get any indication that clicking the button does anything.
Is there a way I can get it to work, or am I just out of luck?
You got them all. There are 6 endings in total, as verified by the author. Here's a branching graph:
Assuming you installed Steam in the default location, you'll want to unzip the folder into %ProgramFiles\Steam\steamapps\SourceMods.
So, in the case of The Stanley Parable, you'll have a folder %ProgramFiles\Steam\steamapps\SourceMods\thestanleyparable containing at least gameinfo.txt and a bunch of folders.
After this, you'll have to restart Steam completely, and the mod will be in the list.
Make sure you own the Source SDK Base (which comes with almost every non-free Source game) and have it installed. (If you don't, it should install automatically when you try to launch the mod.)
Best Answer
I had the same problem, try installing both the source SDK and the source SDK base 2007. That worked for me.