Described as a ‘masterpiece of horror’ by NeoSeeker the game is from the creators of the popular Penumbra series and is described as:
…a first person horror game with a focus on immersion. It is a game where atmosphere and story comes first. We hope that the game will be a breeze of fresh air, in a genre otherwise populated by “one-man-army action hero” sagas. In Amnesia you are almost completely defenseless, something we believe not only makes the game a lot scarier, but also gives a vastly different experience.
Amnesia: the Dark Descent is priced $20, is available at many online game retailers or from store.frictionalgames.com.