Mafia II is a third-person action-adventure video game, the sequel to Mafia: The City of Lost Heaven. It is developed by 2K Czech, previously known as Illusion Softworks, and is published by 2K Games. Originally announced in August 2007 at the Leipzig Games Convention, it was released on Microsoft Windows, PlayStation 3 and Xbox 360 in August 2010. The Mac OS X edition of the game was published by Feral Interactive in December 2011 A version of the game for mobile platforms was developed by Twistbox Entertainment and released in 2010 by Connect2Media.
Source: Wikipedia, "Mafia II", available under the CC-BY-SA License.
Mafia II: Director's Cut includes three expansions which was made by downloadable content at first.