One of the best narrative and gaming experience ever.
The gameplay and mechanic concept are amazing, simple puzzle but still can be difficult.
The story was absolutely wonderful. The more I think I figure everything out, the more it get more complicate.
The ending and the twist when you finally realized, it was just phenomenal.
I also have to give credit to the music composer of this game. The soundtrack from the start to the end enhancing the game experience a lots.

In the end, it's just a perfect harmony of narrative and gaming.