The phrase “ the house always wins” is one that gamblers frequently utilize. The house edge on double zero roulette is 5.26%, while Triple zero roulette has a huge 7.69% house edge due to having 39 pockets – three zeroes and the numbers 1 to 36. On roulette wheels with a single zero the house edge is 2.6% American Roulette: – Casinos manipulate the game’s house edge by adding one or two extra zeros – reducing the player’s odds of winning, and making sure that the casinos make more profit in the long run.French roulette: also utilizes a roulette wheel with 37 pockets, numbered 0 to 36, with one zero.European roulette: utilizes a roulette wheel with 37 pockets, numbered 0 to 36, with one zero.Key differences between European and American Roulette Each game type has subtle differences, however the general play is the same. The iconic casino table game of Roulette comes in three of distinct flavors – European, French and American.