The QuadTari allows for four-player support with joystick-based games. The QuadTari also allows an AtariVox or SaveKey to be used with two-player joystick-based games when the controllers are plugged into the first port, and the AtariVox or SaveKey is plugged into the second port.

Paddle-based games can also take advantage of the QuadTari, as long as they only use the fire button. Presently, the game VROOM! uses this control scheme, allowing up to eight players to play simultaneously.

The games below contain built-in support for the QuadTari.