The Stanley Parable is a very simple first person story driven game. Your goal is really a mystery until you actually play the game for a while.
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| THE decision. |
Because the game is based on the story, there is no mechanics but walking and occasionally interacting with a door or object. But in order to give you something let us say this: The game has a narrator describing your actions and things get really interesting when you reach a critical decision making point with two open doors.
The voice over really makes the game shine. The actor was extremely skilled in depicting the intended emotions. It is also very entertaining to do the same thing over and over or just don't do anything in order to hear his satirical lines. Overall it is a short game but definitely a very unique and interesting one.