Final Fantasy XIII is the thirteenth installment in the Final Fantasy main series, and is the first of the series to be released on the PlayStation 3 and Xbox 360. Unveiled at E3 2006, the game is the flagship of Square Enix's Fabula Nova Crystallis project. The game runs on Crystal Tools (formerly known as White Engine), a proprietary engine built for Square Enix's next-generation games. The game was released in Japan on December 17, 2009, and March 9, 2010 for North America and Europe. A Traditional Chinese version for the PS3 was released in May 2010 . This is the first time a game in the series has been translated into Traditional Chinese. A sequel titled Final Fantasy XIII-2 was announced on January 18, 2011.