Odin Sphere is an action role-playing game developed by Vanillaware for the PlayStation 2 home console. It was published by Atlus (Japan and North America) in 2007, and by Square Enix (Europe) in 2008. A remake titled Odin Sphere Leifthrasir was released on PlayStation 3, PlayStation 4 and PlayStation Vita in 2016: Atlus handled publishing duties in Japan and North America, while NIS America published the title in Europe. Using a 2D side-scrolling perspective, the gameplay revolves around a beat em up fighting system, while incorporating RPG elements such as leveling and alchemy — Leifthrasir expands upon and refines these elements. The story, shared between both version, follows five characters on the fantasy continent of Erion during a war between the nations of Ragnanival and Ringford over a weapon called the Crystalization Cauldron, and their roles in the Armageddon, a catastrophe which will destroy Erion.