What part of Amnesia scared you the most?

[Nonomino]

I remember I screamed pretty loudly when I saw the grunt in the wine cellar. I was with friends (one of them was playing the first Dead Space, the other the second one) so they freaked out a bit.

But the worst parts were the prison, the storage and the choir. Nothing new, I know, but they were so awful. I don't want to go back to these places ever. Especially the storage.
... even though I would love to play the game once again, since I like the storyas well as the atmosphere so much.

Surprisingly, the water part didn't really scare me, it only made me very tense, as if I were playing Tetris or something. It was such a tricky part. My muscles were aching a bit afterwards.