The Stanley Parable is an experimental narrative-driven first person game. It is an exploration of choice, freedom, storytelling and reality, all examined through the lens of what it means to play a video game. You will make a choice that does not matter You will follow a story that has no end You will play a game you cannot win ...it's actually best if you don't know anything about it before you play it :D
This review may contain spoilers
A fantastic mod for HL-2. As others have found, I think the narrator-driven storyline is the best part of this game. From what I have discovered so far, there are at least 3 possible "endings" to the game, and all of them were interesting. I recommend giving The Stanley Parable a try if you haven't already. It's an experience quite unlike any other. Recommended.