Is Amnesia only takes place in the castle?

[Googolplex]

He needs 42 minutes.
And he already know the game. So, everyone could do that.
But it's not the goal of the game.
I needed 8 hours, but looked sometimes into a solution because I atucked in the cells and the control room.
If you play proper, you'll need about 10 hours.

Amnesia is made to play slow.