S.T.A.L.K.E.R: Shadow Of Chernobyl- it has an AMAZING atmosphere if your PC can handle it
Half Life 2: Episode 2 was partly scary but mostly thrilling
Resident Evil (any of them)- no need for any comments on this one (for those that dont know its both scary and shocking but its best for consoles since it wasnt made good for PC)
F.E.A.R-name explains it all
Doom 3- botch shocking and scary... but mostly shocking
Prey- wasnt scary but it has something about it
Silent Hill- dont know much about it but i hear its one of the scariest out there
Alone in The Dark-also heard about this game
EDIT-here i found the game i was looking for (it on second place in this link)
^i have a feeling you knew id post and if(me)=gay(boys)=true then=(suicide)
<got an MP5 AA (or is it BB) gun
vfucks with men only that rape him everyday
Yo Mama so stupid, she stopped at a stop sign and waited for it to say go
Yo Momma so fat, "Place Your Ad Here" is printed on each of her butt cheeks
Yo Mama so fat, I ran around her twice and got lost