Gta5 diamond mission is held in the game hall. There is a sign in the casino to accept. Go to L to sign a CG, and then buy a game hall. You can open a casino in the basement of the game hall. Grand Theft Auto is a world-famous crime-themed game developed by Rockstar Games. There are other aliases such as Grand Theft Auto and Bullying. His first work was published in 1997. Under the background of gangs, Grand Theft Auto mixed elements of driving, gunfight, fighting, cultivation and even management. The game is set in a fictional place that imitates an American city. The game focuses on the setting of the open world. Players are free to decide when and how to promote the story. In addition, there are many additional tasks to choose from.