Zoo Tycoon is a series of business simulation video games. The games focus around building and running successful zoo scenarios. The series was initially developed by Blue Fang Games and published by Microsoft Studios who later in 2001-2008 went on to create two stand-alone video games and seven expansion packs for PC and Macintosh platforms. With their contract with Microsoft ending in 2009, Blue Fang announced their official forums would close to incoming posts in June 2008. In 2013, Microsoft Studios released a new Zoo Tycoon game, developed by Frontier Developments exclusively for Xbox One and Xbox 360.