1. Silent Hill 2. Best Horror game ever. Period. Best story, best gameplay, best enemies, best camera angles, it just doesn't get any better that that.

2. Resident Evil 4 ( I know, it's more action than horror, but still )

3. Fatal Frame : Crimson Butterfly

4. Silent Hill: Homecoming ( I know most people didn't like the game, but the story is almost as good as the one in SH2 )

5. Amnesia: The Dark Descent ( Definitelly one of the scariest games I have every played. That ghost guy chasing you is totally unpredictable, he is as random as a fu**ing pidgeon on the street. You never know when he is gonna show up, where he will go, or what he will do. But the thing I find the most scary about this game is the fact that you cannot defend yourself in any way. You can only run and hide. Plus, you have to turn off the light every time the monster comes around, and when you are in the dark, your sanity begins to drain. )

I have to add a number six.

6. Alone in the Dark: The New Nightmare. I remember playing this on PSX and being scared like a motherfu**er. I was a little young then, and I played all horror games around 01:00 in complete darkness. I remember the story and I thought it was amazing, plus there's the * separate ways * thing. You can play as Carnby or Aline. He was more of the run and gun type, while her side of the story was mostly focused on puzzles. I loved the fact that I can choose which character I can play.