"Grand Theft Auto III" received critical acclaim, with praise particularly directed at its concept and gameplay. However, the game also generated controversy, with criticism directed at its depictions of violence and sex. It became the best-selling video game of 2001, and has sold over 14.5 million copies since. Considered by many critics as one of the most significant titles of the sixth generation of video games and a landmark game in the open world concept, it is often listed among the greatest video games. It won several year-end accolades, including Game of the Year awards from several gaming publications. Since its release, it has received ports to many different gaming platforms. An enhanced version of the game was released on mobile platforms in 2011, for the game's tenth anniversary. Its successor, "", was released in October 2002, and two prequels, "Advance" and "Liberty City Stories", were released in 2004 and 2005, respectively.