Fatal Frame is a series I have been a big fan of for almost a year now, I've played both the first and second games and am currently saving up for the third.
This is by far the creepiest horror survival I've ever seen, the only one I've seen strike fear into people who would normally be completely fine playing a horror. Most of the stages are ancient haunted Japanese mansions, and the characters are almost always young girls. You battle ghosts with an old Camera to capture them. This game play may sound hokey, but trust me, its a battle. You will die. The ghosts are terrifying as well, particuarily Sae from the Fatal Frame II: Crimson Butterfly (the series's best game as judged by fans, I highly recommend you play this before FF1)
And Lady In Box from the same game, she's pretty much based off Samara.
So, anyone already a fan or a fan of some similar series? FF is older, I know, but there are newer titles to the series