This game is called Slender, and it is free for those who want to try it.

 

The premise is simple: an unnamed and unseen character (you) has to navigate a forest and collect 8 notes. Meanwhile, just to make things interesting, you are being relentlessly pursued by a being known as the Slender Man. I've tried it, and the result was nearly bowel-movement inducing. This game is terrifying.

 

Have fun.

Tried it once. Got 6 notes and then Slender obviously got really mad. Never tried it again.

I have never played it

I watched a cool youtube video on it and it was funny as

I did not think the game was that scary, it is a fun little game considering that it is free but really the rather so constructed urban, or should we say internet legend around slendermen are fare more scary then that game. Good old Slender is more annoying than terrifying.