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25.02.2026
Andrew Shepard is a roulette expert with over 10 years of experience. His expertise primarily covers Australian and other international markets. At Roulette77, he focuses on creating in-depth content on roulette strategy testing, simulators, and game mechanics.
How to Use the Simulator
The D’Alembert strategy is based on gradual, controlled adjustments to bets. The principle is simple: after a loss, the bet is increased by 1 unit, and after a win, it is reduced by 1 unit. Our simulator clearly shows how this logic affects your balance and the flow of the game, and helps you assess the behaviour of the strategy before a real roulette session. To start the simulation, follow these steps:
- Select the initial bet size and place it on any even-money field: red/black, even/odd, or 1–18 / 19–36 (as the strategy applies to even-money bets).
- Set the number of rounds, for example, 10, 100, or 1,000 spins.
- Enter the starting bankroll, for example, 100 or 1,000 units.
- If necessary, you can undo the last action using the Undo button or completely reset the settings using Clear.
- Click Start to begin the simulation.
After the simulation starts, all results will be displayed in the table below. It shows the key parameters for each spin:
- Round: the number of the current round.
- Number: the winning number generated by the RNG.
- Status: the outcome of the round: win or loss.
- Bet: the size of the current bet.
- Payout: the amount won or lost for the spin.
- Balance: the balance after the spin is completed.
