Eternal Darkness: Sanity's Requiem is a psychological horror action-adventure video game developed by Silicon Knights and published by Nintendo. Originally planned for the Nintendo 64, it was made a launch title for the GameCube and released on June 24, 2002. While the game features similar gameplay mechanics to that of the Resident Evil series, it distinguishes itself with unique features, such as "sanity effects". In the game, players take on the role of several characters, including a young f...