The main difference between Sic Bo and craps is that Sic Bo uses three dice, while craps only uses one. And, in Sic Bo, the dice roll happens in a cage, while in craps one of the players is assigned the role of the shooter. Furthermore, since three dice instead of two are used in Sic Bo, this gives you more betting options. Craps is also a longer game with multiple betting stages, while Sic Bo is not.