Italy-based indie studio Dreampainters
have released "Anna", a 3D adventure game built with the Unity engine and based on a dark Italian folklore tale. The game's length of only 3 hours is rather short, although the game offers multiple endings. An interesting thing to know about this game is that it somehow gauges your mental state by how you behave. It will react to this and alter certain things about the story and its locations.
Sounds spooky. Also spooky is this trailer:
Fans of spooky games should definitely check this out. "Anna" is available on Desura