GTA 4 invites you to experience thrilling adventures in an open 3D world. Your main character lives in the city of Liberty City. It is a veteran of Yugoslav War, Niko Bellic. The game is divided into missions, and almost every mission requires you to commit a crime of a certain kind. You will have to steal cars, transport drugs and even kill people for your own benefit after the assignment. And then, you need to help the hero avoid responsibility. Your progress parameter will grow as you complete the tasks.