Developer: Galactic Cafe
Price: $14.99 (on sale for $11.99)
The Stanley Parable is a game of contradictions. It's about a man named Stanley, but it's also your story. It's a game about choice, but also the lack of choice. It's funny and humorous, but also surprisingly existential. The Stanley Parable is many things, but one fact remains consistent: it's something you need to experience.
You can purchase the game on Steam.