Unfortunately, you can't. C.A.T.S. is an asynchronous multiplayer game. You play against the machines created by real players. Even though your opponents shouldn't necessarily be online at the time of the battle, the game constantly checks the state of their cars, and if an opponent's car has changed, that may affect the result of the battle. That's why the Internet connection is required at all times.
Can I play C.A.T.S. offline?
Last Updated: 1298d