Things that would have made Amnesia scarier

[The chaser]

It would be good that, in some levels, when you knew there were monsters, they spawned randomly: I will explain myself now:

In Left 4 Dead, zombies aren't programmed. It's a zombie generator that makes random zombies (random face, random blood in some parameters). What I mean is that, since a moment that the player knew there were monsters, that in the 1-15 levels they spawned randomly. For a "Player 1" monsters would spawn at 2, 4, 5, 8, 13, 15. For another player "Player 2", they would spawn at 1, 3, 5, 8, 13, 14.

That would add randomness and naturality to the game.