"Anna" is an adventure game designed to analyze what the player does and react around his behavior. It features three ending according to how much the character has gone deep into madness. The more you play, the more you find, but to really discover everything, you'll have to lose yourself. With the game, you'll also get the main character's notepad, giving you more insights on the plot, and the original Soundtrack.
Im giving this a ten because of all the people that claimed the puzzles were "to hard" or that the game wasnt "scarey enough". Puzzle games are meant to be hard, you should welcome a challenge not complain about it. As for scarey, its not all about "boom slenderman right in your face" scarey, this is much more a game based on paranoia, it is enjoyable but you have to be open to the idea that this game isnt going to offer you advice, YOU ACTUALLY HAVE TO THINK. Is that really so difficult.