When you register for an Account with us (“Account” is defined in Section below) and/or use or access any of the betting, gaming and/or gambling. . Craps has the lowest wagering contribution at 5%. It all depends on how you win the money really. It all depends on how you win the money really. If on your first ever bet you place a 20 leg multi (or parlay for you americans) and it wins. Roulette, and Live Baccarat have a 10% game contribution percentage. Casino > Casino Games. When you register for an Account with us (“Account” is defined in Section below) and/or use or access any of the betting, gaming and/or gambling. If on your first ever bet you place a 20 leg multi (or parlay for you americans) and it wins.