Eternal Darkness: Sanity's Requiem is a psychological horror masterpiece that weaves a chilling narrative across multiple time periods. Its innovative "sanity effects" system brilliantly messes with the player's perception, blurring the line between game and reality. While the combat and puzzles can feel somewhat dated, Eternal Darkness delivers a unique, atmospheric experience that skillfully balances historical intrigue with cosmic terror. Fans of the horror genre won't want to miss this unsettling gem.