Whats the most scariest game you have ever played?

[bloody swamp]

Eternal Darkness: Sanity's Requiem

The "Blue Screen of Death" really got me, I so thought my Gamecube had just died.

 

EDIT: I guess I'm tired . I can't remember very well but I might have a (harmless) blue screen once or twice with my Dreamcast. That could have been the reason for this little mistake.