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

[Alardem]

Penumbra was a revelation as a horror game, proving that it was indeed possible to combine a first-person perspective with stealth-based gameplay in order to create an unnerving experience.

Amnesia may have improved on the mechanical aspects, but it was simply a refinement of what Penumbra introduced to me. I also found Amnesia's castle setting far less interesting than the modern-day equivalent to The Thing's frozen base.

Story-wise, I enjoy each on their own merits. Philip's struggle was more sympathetic and tragic, while Daniel's story is morally questionable.