This is an article about the multiplayer featured in the fan fiction game concept Grand Theft Phineas:Tri-State Area, titled Grand Theft Phineas Online. The multiplayer features every mode from GTA Online, along with a few new ones. The character customization works the same as Saints Row. The multiplayer consists of 36 player open world sessions based in the same map as the story mode. You can also play a 4-player Co-op mode during the main story. Players may travel around and interact with the map at will and can take part in many gameplay activities. Several of these open world activities are unique to the multiplayer mode of the game, while others are shared with the story mode. Players can also purchase property, vehicles, clothing, aircraft, masks and weapons for their character.