Amnesia: Through the Portal (2.0 Expansion Released)

[Kman]

The levels looked badly made and I fell behind the warp to Earth on my first playthrough so I had to start again. Short, not scary at all, and looked so unrealistic (even for an alien realm) that I didn't once feel immersed.

If you don't think this is a good custom story, then you should just skip out on the whole custom story thing for amnesia, because this is about as good as it gets