It is in a abandoned forest and you have to collect bones for a ritual located in a secret place in the game. There are lot of abandoned building and structures all over the map. If you do not get the bones you cannot progress to other places on the map. You do have to register on crydev.net to play the game. The game uses the Cryengine 3.4.5
Any horror adventure gamers out there?
http://www.indiedb.com/games/the-cursed-forest