I beat the Penumbra demo, it didn't scare me but it creeped me out.
Dude, the demo was just a tech demo to show you how the game will work. The tech demo doesn't have that many scary things.
But like when I played the full game, I would wait until like 10pm before I start, that way it's all dark and things. Then I got into room and I heard monster and was like OSHTOSHTOSHTOSHTOSHOSHT WHAT DO I DO. So I hid in a dark corner, and was safe.
Until I found out the monster had a flashlight.
DUNDUNDUN