Fatal Frame scared the living piss out of me.

We played it at night with surround sound on... me playing and three roommates watching, and it was funny as hell at how many holy shit's and motherfuckers were said during those three nights... scary stuff.

Yeah - the Friday the 13th game scared me too! Then again, I was really young at the time... but still... that fucker came out of nowhere and was just stabbing the hell out of you! Bah!

Silent Hill
Undying on high volume in the dark
The Suffering - definitely scared the hell out of me in the dark.

The first half of Half-Life always does it for me

It's extremely atmospheric and creepy. Try playing it on a big screen with the surround cranked.

Some Parts of Doom3 got me. Damn those shadows. Also undying had some good stuff too!!!

None of them really.

Doom 3 makes me jump a little but none scare the shite out of me. Maybe played to many/watched to many movies, hehe

Only the Silent Hill series. I remember playing silent hill 1 for ps1. My friend were so scare he left the room after watching 10 min of me playing it lol. Everytime I heard a radio static I thought of silent hill now. :lol:

The freekiest games i've ever played would have to go to Silent Hill and Resident Evil 3.
This may be due to the fact that it was like 2 in the morning but Silent Hill really gets your blood pumpin at times

System shock and system shock 2 were the first games where I've been completely terrified. The SOUNDS in system shock 2 are incredible. The first time you see a mutated robot woman walking around muttering to herself 'babies need meat', the way SHODAN announces herself, the zombie-annalids that beg for forgiveness and to be killed while they pummel you. The fact that the volume LEAPS to four times the size the moment a battle occurs. It took me three times to complete it because I'd just reach a point and stop playing out of kindness to my nerves.

I once tried to get a friend to play it. She didn't even complete the first level and had nightmares about psychic monkeys and screaming half-humans for a week.

Also, Alien VS Predator as a marine - HOLY CRAP. The motion detector beeps are the most hormone-pumping thing I've ever experienced in a game. Even as the beeping gets closer and closer and you turn the corner and the alien leaps at you you're still not ready. You suddenly leap out the chair and say SWEET FUCKING CHRIST and try to fire and run away all at the same time. Crazy.

Well worth playing it on a fast computer. Things move at about twice the speed as they would on a normal fps, and aliens move twice the speed again.

Silent hill - I haven't played enough to rate it. The bits that I've done weren't that scary, but a lot of my friends are completely freaked out by it. Maybe I'll give it a try.

Doom 3. big evil shit jumping out from under stairs....
Halo gives me the willies now, (I'm fighting the walking potato people and the floating bugs)