Frictional Games, the makers of the Penumbra series, has announced that Amnesia: The Dark Descent game (http://www.amnesiagame.com) for Mac OS X, Windows and Linux is now available for instant download. It costs US$20..

Frictional Games says one of our goals with the game has been “availability,” meaning that the game should be as available as possible for those that are interested in playing it. Because of this, the game is having a simultaneous launch on Mac, Windows and Linux. It also comes with four translations in addition to the original English version, is DRM free and available from most major online retailers in addition to our own online store.

Here’s how the game is described: “Amnesia: The Dark Descent is 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. Enter an interactive nightmare where reality is a fragile concept. Do you have what it takes to survive?”