Penumbra is a first person horror adventure focusing on story, immersion and puzzle solving. Violence and combat is hardly an option - the player has to use wits to guide Philip through his final test, and this makes the series unique in offering a truly dangerous and terrifying experience.
I've played this games tons of times, it's not that scary, just go to the bathroom before you play it...
Awwww, how cute! A puppy!
*Chewed to bits*