Grand Gangsters Crime City War is a free game in which the player takes the role of a criminal gangster who is on a mission to kill all the other gangsters in a city. The game has a vast open world in which the player can go to any place he wants to, to do anything he wants to, and kill anyone he wants to. The game has a storyline in which the player has to fight against a group of gangsters. They will try to kill him and his friends and get away from the cops.

The game has a lot of missions in which the player has to complete a task. He will have to go to a place and kill a certain number of people. He will be given a weapon and a task to complete. He can choose to use the weapon he was given or he can buy a weapon in the world.