Play the full game for free until 1pm Pacific Sunday! Click Here to download and start playing. Must have Steam installed.
Sonic and the All-Stars cast line up on the starting grid once again to battle for supremacy in the ultimate race. Compete across land, water and air in incredible transforming vehicles that change from cars to boats to planes mid-race. Itâ€™s Not Just Racing. Itâ€™s Racing Transformed!