Great game, very scary with intense chases.
Sometimes in the game you are chased by people, this are in my opinion the most exciting moments in the game... You can easily get seriously under pressure when people (if that guys can be called people) start to chase you, you have to lock doors, push objects to the doors, go through roofs and fire stairs, anyway that you can find to get the hell outta there its a breath you can take because the chases can be really breathtaking.
The atmosphere its heavy and you feel like in hostile territory, the great story helps a lot to get you interested, stealth takes sometime of the game and works fine. The only weak point of CoC its the dated graphics and some issues on the gameplay, but despite of that its a solid game and a must play, but I don't recommend it to people who are more sensible to mistery, terror and aspects like that because the game can get very intense.