described as "cardio-intensive terror in the dark, combined with night vision effects"
http://www.makeuseof.com/tag/outlast-review-the-most-terrifying-game-of-2013-giveaway/
"Seldom does a game damage you psychologically, the way Outlast will. It?s like going on an adrenaline-fueled, sprint-paced tour of a monster-infested mansion. Shambling, rattling things scratch at your back and there?s nothing you can do to defend yourself other than run ? run until your lungs and knees bleed."
:o
This isn't one of those games that will have Let's Play YouTubers adding a facecam and screaming at every little thing is it?
:D