Frictional Games made a name for themselves with the creepy adventure title Penumbra and its sequels, and next week they return with Amnesia: The Dark Descent. Another creepy horror adventure, with physics puzzles and mysteries to solve.
The developers have released a demo that you can download or torrent (get it here), to try it out before you decide whether or not the game is worth your hard earned cash. The full game will set you back about €15 at most download stores.