Final Fantasy Versus XIII is an action role-playing game developed and published by Square Enix exclusively for the Sony PlayStation 3 video game console. Alongside Final Fantasy XIII and Final Fantasy Agito XIII, the game is a part of the Fabula Nova Crystallis Final Fantasy XIII compilation. Unveiled at E³ 2006, the game focuses on a mysterious protagonist, the last heir of a dynasty ruling over the only remaining city in the world to control crystals. Under unforeseen circumstances, he is forced to make a stand when his kingdom, people, and its crystals come under attack from marauders seeking to conquer the city and take the crystals as their own.