"Grand Theft Auto IV" (GTA IV) is an open-world action-adventure game developed by Rockstar North and published by Rockstar Games. Released in 2008 for PlayStation 3, Xbox 360, and PC, the game is the fourth main entry in the iconic "Grand Theft Auto" series. Set in the sprawling and immersive city of Liberty City, GTA IV follows the story of Niko Bellic, a war veteran from Eastern Europe who arrives in America seeking the American Dream. The game features a rich and engaging narrative, filled with memorable characters, complex storylines, and moral dilemmas. Gameplay in GTA IV includes a mix of driving, shooting, and exploration, with a vast open world to navigate. Players can engage in a variety of missions, side activities, and mini-games, from carjacking and heists to dating and bowling. The game's realistic graphics, detailed environments, and dynamic weather and traffic systems create an immersive and believable world. GTA IV also introduced several innovative features, such as a more realistic physics engine, improved AI for NPCs, and a robust multiplayer mode. With its compelling story, expansive gameplay, and cultural impact, "Grand Theft Auto IV" is considered one of the greatest games of its generation.