Odin Sphere is a 2D fantasy action RPG video game developed by Vanillaware. Localized and published by Atlus for the PlayStation 2 in 2007, it tells the interlocking stories of five different protagonists. Odin Sphere is considered a spiritual successor to the Atlus game Princess Crown and takes some concepts from Norse mythology. Square Enix released the game in Europe on March 14, 2008.