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American Roulette Online at Mega Casino
American Roulette is the double-zero variant of the game, the version most associated with the casinos of Las Vegas and Atlantic City. It plays almost identically to European Roulette, but the extra double-zero pocket changes the maths in a way that matters for any player who cares about long-term expected return.
This page covers what makes American Roulette online different from the European version, the full bet menu including the Top Line wager, and how RNG American Roulette compares to live dealer variants in the online roulette UK market. Mega Casino is licensed and regulated by the UK Gambling Commission, Licence Number 39326.
What Makes American Roulette Different?
American Roulette uses a 38-pocket wheel. The numbers run from one to thirty-six, alternating red and black, with a single green zero and a green double zero. European Roulette uses a 37-pocket wheel with the single zero but no double zero. The extra pocket changes the American Roulette house edge from the European 2.70% up to 5.26% on standard bets.
Translated to theoretical RTP, the American Roulette wheel returns approximately 94.74% over the long term on standard bets, compared to approximately 97.30% on European Roulette. RTP is the theoretical return calculated across millions of simulated spins, not a guarantee of any session result. The difference is small per spin but compounds across volume.
The Wheel and Table Layout
The wheel runs the numbers in a specific non-sequential order designed to alternate odds and evens, reds and blacks, and high and low numbers around the rim. The pocket sequence on the American wheel differs from the European wheel, but the betting layout on the felt is essentially the same, with the double-zero pocket included next to the zero at the top of the grid.
All standard bets are placed on the same betting positions as in European Roulette. Bets can be placed during the wagering window before each spin, and the dealer or the software locks bets once the wheel is in motion.
Inside Bets
Inside bets cover specific numbers or small combinations on the felt. A straight-up bet on a single number pays 35 to 1. A split bet on two adjacent numbers pays 17 to 1. A street bet on three numbers in a row pays 11 to 1. A corner bet on four numbers pays 8 to 1. A six-line bet covering two adjacent streets pays 5 to 1. Every standard inside bet carries the same 5.26% house edge under double-zero rules.
Outside Bets
Outside bets cover larger groups of numbers. Red or black, odd or even, and high or low all pay 1 to 1. Dozens and columns pay 2 to 1. The same 5.26% house edge applies to every standard outside bet. The trade-off compared to inside bets is win frequency: outside bets land far more often, but each win is smaller relative to the stake.
The Top Line Bet
American Roulette includes one bet that European Roulette does not: the Top Line, sometimes called the Basket or the Five Number bet. It covers zero, double zero, one, two, and three as a single wager. The payout is 6 to 1.
This is the one bet on the American Roulette wheel that carries a higher house edge than the standard 5.26%. The maths works out to approximately 7.89% against the player, making the Top Line the least efficient bet on the table from a long-term expected-return perspective. It exists because the five numbers cannot otherwise be covered by a single inside bet under the standard layout.
RNG American Roulette vs Live Dealer American Roulette
RNG American Roulette plays at your own pace. The wheel and ball are software-driven, results determined by certified random number generation, and you can play as fast or as slow as you want. Live American Roulette is streamed in HD from a studio with a real wheel, a real ball, and a real croupier, with the results determined by physics. Both variants are available in the live casino tables section, alongside First Person American Roulette, which mixes the live wheel with an RNG interface for solo play.
The broader roulette catalogue, including European Roulette, French Roulette, and live dealer variants, sits under online roulette at Mega Casino, and is worth a look if you want to compare RTP profiles across variants.
Who Is American Roulette Design For?
American Roulette suits players who specifically want the double-zero variant, either for stylistic reasons, for the Top Line bet, or because they prefer the layout. From a pure expected-return perspective, European Roulette offers a more favourable theoretical RTP across the same bet types, which is worth knowing before deciding which variant to sit down at.
Responsible Gambling
Set a deposit limit and a session limit before opening any roulette table. Use the reality check tool for on-screen prompts during longer sessions. Roulette can feel like a slow game compared to slots, but the round count adds up quickly, so it pays to track stakes and time. Help and support are available at GambleAware, and GAMSTOP provides self-exclusion across all UK-licensed operators in a single registration.
Explore roulette games at Mega Casino. 18+ | Play Responsibly. Mega Casino is licensed and regulated by the UK Gambling Commission, Licence Number 39326.
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