The main variance between the two is that, due to the additional zero, odds are greater against the player and so the challenge is heightened. Better known as American Roulette, players who enjoy playing the wheel at both online and land-based casinos, will tell you there is very little difference between Double Zero Roulette and American Roulette. Roulette, an all-time popular casino table game, has been reinvented by NextGen Gaming and is now an online casino sensation.