Why horror?

[xdeath]

You can't.

Reasons:

-This game engine only has an AI behavior for enemies, there is no such thing as friendly NPCs.
-This game engine does not support exterior lighting/indirect lighting(I think).
-This engine is totally engineered for Amnesia, there is no horror game that will look pretty inside it.
-Such a project would be a bad choice as there are lots of better engines for that.

It may be a nice engine for some story telling NON Horror mods though.

I'm pretty sure you can change AI behaviour. Maybe with a total conversion mod.
I would also like to point out that anything is possible, but I agree, a game that incorporates neither horror nor adventure elements is easier done in another engine.