One of the best horror games of all time. Although a GameCube classic it's kind of forgotten today which is a real crime.
Where do I start?
A fantastic story inspired by Cthulhu Mythos (basically a Cthulhu game in everything but the name)? Different time periods? Superb voice dialogue? Great graphics? Interesting combat where you can target individual body parts? And of course the sanity system that made you feel insane? From walking on the ceiling to deleting your save files!
This game has everything. Simply fantastic.