Me too! Love those horror theme game atmosphere that give you goosebumps! Keep the suggestions coming, people!

1. The House (online flash game)
2. Amnesia Dark Descent (good atmosphere but no fear factor for me)
3. Slender Man (boring to me)
4. F.E.A.R 1 (the sequels are not scary anymore)
5. Deep Space 1 (sequel again not scary)
6. Resident Evil 1 & 2 (some good memorable moments)
7. Condemned: Criminal Origins (will try this next)
8. Fatal Frame (Great!)
9. Silent Hill (I get bored when there's no action)
10. Forbidden Siren (not bad!)
11. Eternal Darkness: Sanity's Requiem (no Gamecube to play)
12. Clock Tower series (haven't finish any yet!)
13. Calling (not scary enough)
14. Thief 1 & 2 (suspense if you play by stealth)
15. The Thing (again, suspense as survival game)

Games I want to try but still looking for them, Ju-On, Kuon and Rule of Rose

Yeah, I really really wanted to play Ju-On with my little sister...haha but I haven't able to find a copy yet.