Theme Park Tycoon 2 is the best Roblox game of all time. The game is full of side-missions and will definitely provide an experience similar to Grand Theft Auto. While the primary mission for the cop is to prevent the criminal from escaping the prison. If you choose to be a criminal your primary mission is to escape from prison. This roleplaying Roblox game allows users to either be a cop or a criminal. Jail break is another popular Roblox game that’s worth checking out.