Grand Theft Auto IV is the ninth title in the long-running Grand Theft Auto series. The game is set in a redesigned Liberty City, based on four of the boroughs of New York City and parts of New Jersey. Although the total area of the map is smaller than that of San Andreas, the newly designed Liberty City is far more detailed and the largest individual city in the Grand Theft Auto series. http://www.rockstargames.com/IV

Released on April 29, 2008 Grand Theft Auto 4 is available on PlayStation 3, Xbox 360 and PC. Rated M for Mature the title was developed by Rockstar North and published by Rockstar Games.http://xbox360.gamespy.com/xbox-360/grand-theft-auto-4/

The game received two downloadable contents, both of them requiring the original game. Grand Theft Auto IV: The Lost and Damned is the first one and it was released on February 17, 2009. The second DLC is known as Grand Theft Auto: The Ballad of Gay Tony, released on October 29, 2009.http://www.rockstargames.com/

On October 29, 2009, Rockstar Games also published Grand Theft Auto: Episodes From Liberty City a stand-alone video game containing both episodes released before.http://www.rockstargames.com/

The gameplay combines the elements of an action-adventure video game with those of a driving game. The main character is capable of walking, running, swimming, climbing and jumping, as well as utilizing weapons and engaging in basic hand to hand combat.http://www.rockstargames.com/IV

A variety of vehicles are available, including automobiles, boats, helicopters, and motorcycles.When not following the storyline to do some free roaming exploration, the player should keep in mind that wreaking havoc will attract undesired and potentially lethal attention from the authorities.http://www.rockstargames.com/IV

The strength of the response correlates to the severity of the damage produced. Police address "minor" infractions within the game such as attacking people, pointing guns, stealing cars, killing a small number of people, etc. However, higher level infractions are addressed by SWAT teams, the FBI, and the military.http://www.rockstargames.com/IV

The main character in the game is Niko Bellic a Bosnian War veteran who leaves Eastern Europe after 3 members of his unit died. Niko tries to find who is behind this betrayal and eventually angers his former boss, Ray Bulgarin.http://www.rockstargames.com/IV

After 10 years Niko appears in Liberty City and meets his cousin Roman. Niko wants to live the American Dream and to find Florian Cravic, who seems to be guilty for the death of Niko's friends.

Soon after arriving in Liberty City, Niko realizes that his cousin isn’t the man who says he is and he doesn’t live a luxurious life. Instead Roman is hunted by loan-sharks and has gambling debts he can’t afford to pay.http://www.rockstargames.com/IV