Amnesia: The Dark Descent or Penumbra: The Black Plague?

[Diz]

I feel Amnesia: The Dark Descent is better than any of the Penumbra games. To me, Amnesia offered a much better story, immersive atmosphere, dark style and deeper horror. Penumbra was great, as well, but my personal opinion is that they cannot match The Dark Descent. I did play Amnesia first, yes, but generally I just feel the older age and its contents eerie and scary by itself, and while the AI was easy to avoid, it just felt a whole lot more supernatural, mysterious and creepy to me.