GTA 4 (Grand Theft Auto IV) was an action adventure game developed and published by Rockstar Games in 2013. The game was set in a fictional open world where players could play as three different characters in the GTA series. The story takes place in a city called Los Santos. Players can control the main characters Tony Morales (Tony Moala), Mike Curry (Mike Curry), or Albert Scott (Albert Scott) to complete various missions and activities in this city. The main plot of the game revolved around the story of the three main characters. Their relationships and conflicts gradually became complicated. Players needed to solve various problems and problems in the game to promote the further development of the story. In the game, players could choose different missions and activities, including crime, police, racing, football, and so on. Players could earn money by completing missions and activities to buy more items and equipment to improve their skills and abilities, and carry out more complicated missions and activities in the game. GTA 4 was a popular game that received widespread praise and became a classic in the GTA series.