How to Play Roulette: A Complete Guide to Rules, Bets, and Game Variations

Understanding the Roulette Table and Wheel

At its heart, this classic is a simple game of prediction. The objective is to correctly guess which numbered pocket a small ball will land in on a spinning wheel. The standard wheel is divided into 37 (European/French) or 38 (American) pockets, each with a unique number and colour (red or black, with the zero pocket being green).

The accompanying betting table, or layout, is a grid that displays all possible wagers. This is where players place their chips to signify their chosen bets before the wheel is spun. The numbers on the wheel are not arranged in numerical order but in a specific sequence designed to balance high, low, odd, and even numbers. This layout is a critical piece of game design, ensuring a random distribution of outcomes.

RNG vs Live Dealer Roulette

Online operators in the UK present the game in two primary formats. The first is a digital version powered by a Random Number Generator (RNG). This software algorithm produces a random outcome for each spin, ensuring fairness and unpredictability. All RNGs used by operators holding a UK Gambling Commission licence must be independently tested and certified by approved test houses like eCOGRA or GLI.

The second format is Live Dealer Roulette. Streamed in high definition from a dedicated studio, these games feature a human croupier operating a physical wheel. This format, pioneered by suppliers such as Evolution and Playtech, replicates the social and transparent environment of a land-based casino. Players can interact with the dealer and see the physical spin and ball drop, adding a layer of authenticity that many prefer.

A Step-by-Step Guide to Placing Roulette Bets

The betting process follows a clear sequence each round, known as a 'spin' or 'coup'. Whether playing online or in a physical venue, the steps are broadly consistent and easy to follow.

1. Select Chip Value: The player first chooses the value of the chips they wish to wager.
2. Place Bets: Chips are placed on the desired sections of the betting layout. Multiple bets on different outcomes can be placed in the same round.
3. The Spin: The croupier spins the wheel in one direction and the ball in the opposite. In online RNG games, this is animated after the player initiates the spin.
4. 'No More Bets': The croupier will make this announcement shortly before the ball is about to drop into a pocket. At this point, no further wagers are accepted for the current round.
5. The Result: The ball settles in a numbered pocket. The croupier announces the winning number and places a marker (a dolly) on it on the layout.
6. Payouts: Winning bets are paid out according to their odds, while all losing bets are removed from the table by the house. The cycle then begins again.

Inside Bets: High Risk, High Reward

Inside bets are wagers placed directly on the numbers in the central grid of the betting layout. They offer higher payouts because their probability of success is lower. These are the primary inside bets:

• Straight Up: A bet on a single number. Pays 35:1.
• Split: A bet on two adjacent numbers, placed on the line between them. Pays 17:1.
• Street: A bet on a row of three numbers, placed on the outer edge of that row. Pays 11:1.
• Corner (or Square): A bet on a block of four numbers, placed on the intersecting corner. Pays 8:1.
• Six Line: A bet covering two adjacent rows of three numbers each. Pays 5:1.

Outside Bets: Lower Risk, Lower Reward

Outside bets are placed on the sections surrounding the main number grid. They cover large groups of numbers and offer lower payouts due to their higher probability of winning. They are often favoured by more conservative players.

• Red or Black: A bet on the colour of the winning number. Pays 1:1.
• Odd or Even: A bet on whether the number will be odd or even. Pays 1:1.
• High or Low: A bet on whether the number will be in the range 1-18 (Low) or 19-36 (High). Pays 1:1.
• Dozens: A bet on one of three groups of 12 numbers (1-12, 13-24, or 25-36). Pays 2:1.
• Columns: A bet on one of the three vertical columns of numbers on the layout. Pays 2:1.

Side note: In all cases, if the ball lands on zero (or double zero), all outside bets lose, which is the primary source of the house edge.

Choosing Your Game: European, French, and American Roulette

The choice of game variant has a direct impact on a player's long-term odds. While the games look similar, small rule changes create significant mathematical differences. For any UK-based operator, offering a clear choice and explaining the differences is a mark of transparency.

European Roulette

This is the most common variant found online and in UK casinos. It features a wheel with 37 pockets: numbers 1-36 and a single green zero. The presence of just one zero pocket results in a house edge of 2.7%. It is the standard against which other forms of the game are measured.

American Roulette

The defining feature of American roulette is an additional pocket on the wheel: the double zero (00). This brings the total number of pockets to 38. While payouts for winning bets remain the same as the European version, the extra pocket nearly doubles the house edge to 5.26%. From a player's perspective, there is little strategic reason to choose the American variant over European or French roulette, given the poorer odds.

French Roulette

French roulette uses the same single-zero wheel as its European counterpart but includes two player-friendly rules that apply to even-money outside bets (Red/Black, Odd/Even, High/Low). The first is 'La Partage' (the sharing), where the player receives half their stake back if the ball lands on zero. The second, less common rule is 'En Prison' (in prison), where the stake is held for the next spin, giving the player a chance to win it back. These rules cut the house edge on even-money bets to just 1.35%, making it the most favourable variant for players making those specific wagers.

While the core mechanics of the game have remained unchanged for centuries, suppliers continue to innovate. Formats such as Evolution's Lightning Roulette, which adds RNG-based multipliers to straight-up bets, blend traditional gameplay with modern slot mechanics, showing the classic wheel still has new turns to take.

Ultimately, a clear understanding of the probabilities and choosing the right game variant are the most effective tools a player can employ. Before you play, decide on a budget and stick to it, making use of the safer gambling tools that all UK-licensed operators provide.

18+ only. Gambling should stay entertainment. Set deposit limits, take breaks, and use GamStop or GamCare if it stops being fun.