Social gaming company Zynga has launched the 3-D version of its city-building game, CityVille 2 on Facebook, which will be introduced globally in 15 languages. CityVille 2 will enable players take on the role of a mayor to build a virtual city by guiding to create businesses, museums, homes, roads, parks and other aspects of urban life. In addition, the new version will introduce a new online chat feature that allows online friends to help build one another's' cities, communicating in real time.