#13 Eternal Darkness
This one is special. The game itself is the best title hands down inspired by works of H.P. Lovecraft there is. But what makes this game so special are the insanity mechanics. The characters will lose sanity when facing monsters, and at a certain point, things start to go wrong. The TV channel changes. Bugs crawl across the screen. The character’s head pops off. Which of course doesn’t really happen, but is a way of the game to express the character’s insanity.