To be honest I've never been 'scared' by a game. Too many horror movies I guess lol.
Sure, games have made me jump but never given me that real chill that runs down the spine.
Even with the lights off and headphones on lol (is that how everyone in this topic plays games? 'hold on.. scary bit coming up, gonna get me 'phones on and hit the lights. oh yeah! gigeddy gigeddy!')