There's another "top 10 scariest video games of all time" article available, and this time it's over at Tumeroks. There's no mention of Vampire: The Masquerade - Bloodlines, unfortunately, but System Shock 2 took the #8 spot.
This game debuted summer 1999, to scare people. Utterly immersive in its use of character attachment and amnesiac story-telling, it is a game that will honestly give you the sweats. This game is very atmospheric from the beginning. The character models is just disgusting making you want to shoot them with what ever weapon you have. The sound also adds up, being very disturbing that is.
Scariest moment : Similar scenes from past movies and novels scares me. Restarting a generator anyone?