6. Eternal Darkness: Sanity's Requiem (GameCube)
Seriously, write off every other survival horror game, and just buy this one. There are no others out there that compared with it. Eternal Darkness: Sanity's Requiem was everything that a game should be. It had true terror, suspense, the jump out of your chair moments, and it truly rewrote the book on how to dick with the player's mind. Throughout the game, the main character's sanity would fluctuate based on insane things they might encounter (say a half dead, half dessicated zombie crawling on the ceiling). The more crazy shit you saw in the game, the crazier the game would get. By the time you were at full on poop-eating madness, the game's volume would be constantly increasing/decreasing, flies and other bugs might appear to be crawling on the screen, rooms would appear upside down, and a slew of other very creative ways of not only messing with the character, but also the player. Requiem killed it in the reviews. Pretty much every critic that played the game told the world that it was amazing. However, since it was GameCube exclusive, and not very heavily marketed, it saw very little in the way of commercial success. It remains one of the best games of its genre and one of the most shining examples of how console exclusive game development hurts the art.