Stanley Parable is a unique, if not atypical game. You play as employee number 427; an employee who only pushes buttons as per the instructions of his superiors. Stanley, however, does not receive any orders one day, therefore, he gets up from his desk and starts investigating what exactly has happened.
And this is where you take control of him in this FPS which uses the well-known game engine called Source. Our protagonist immediately notices that nobody else is present in the office - he passes empty cubicles and corridors trying to find the answers.
There are no weapons in this game. No NPCs you can interact with. No objectives. No goals. Stanley Parable is about exploration. And this exploration, this journey of our white-collar worker is accompanied by the narrator's voice.
However, you will notice that the narrator tells Stanley, in advance, which door he is supposed to take. But you can refuse the command and go to the direction you desire. And this is the most crucial part of this game: it is about choices. Your choices.
And these choices can yield you at least a dozen endings. Endings that are funny, serious, sarcastic and some are even meant to be no more than mere easter eggs.
This is not something you'll spend dozens of hours with. No, Stanley Parable can be completed in a mere 30 minutes, still, it's worth the journey and the appreciation.