Paroli (Reverse Martingale). Double after each win, reset after three consecutive wins or on any loss.
Worked example: A$5 → A$10 → A$20, then reset. Three wins net A$35 profit; a single loss costs only the current stake. Risk is capped, but so is the upside. Roughly 1 in 8 attempts completes the three-win run.
D'Alembert. Increase the stake by one unit after a loss, decrease by one after a win.
Worked example (A$5 unit): A$5 (loss) → A$10 (loss) → A$15 (win) → A$10 (win) → A$5. Far gentler escalation than Martingale, which is precisely why recovery is slower and drawdowns last longer.
Fibonacci. Progress along 1, 1, 2, 3, 5, 8, 13, 21 after each loss; step back two places after a win.
Worked example (A$5 unit): A$5, A$5, A$10, A$15, A$25, A$40. Slower than doubling, but the sequence still reaches uncomfortable numbers by the eighth step, and a win only unwinds two rungs of the ladder.
Labouchère (Cancellation). Write a sequence summing to your target profit (for example 1-2-3-4). Bet the sum of the first and last numbers; cross both off on a win, append the lost amount on a loss. The list can grow faster than the bankroll, and the drawdown stays opaque until it arrives.
James Bond flat bet. A fixed coverage bet: 70% on high (19–36), 25% on the 13–18 six-line, 5% on zero. It covers 25 of 37 numbers and feels safe. The house edge remains exactly 2.70%, because it is a bundle of standard bets each carrying 2.70%.