Online roulette simulators
Compare online roulette rules, pocket counts, and house edge before running longer strategy tests.
European Roulette
EuropeanSingle-zero wheel for lower house edge testing and clean baseline simulations.
- House edge
- 2.70%
- Numbers
- 37
American Roulette
AmericanDouble-zero model for comparing volatility, drawdown, and bankroll pressure.
- House edge
- 5.26%
- Numbers
- 38
French Roulette
FrenchSingle-zero rules with La Partage context for even-money strategy analysis.
- House edge
- 1.35%*
- Numbers
- 37
Online Roulette Simulator and Strategy Lab
Run free online roulette simulations, analyze bankroll performance, and understand probability without risking real money.
Bankroll
$10,420
+4.2% session
ROI
3.8%
mock session
Hit Rate
47.6%
1,250 spins
Total Spins
12.4k
lab sample
Profit/Loss
PreviewOnline roulette bankroll analytics without casino noise.
Roulette Lab is designed around measured online roulette sessions, clear probabilities, and repeatable strategy experiments. No banners, no urgency tricks, no real-money gambling.
Bankroll
$8,940
-10.6%
ROI
-2.1%
after wager
Hit Rate
48.8%
outside bets
Total Spins
500
batch test
Popular strategies
Martingale
High variance progression that doubles after losses and stresses bankroll limits.
Explore StrategyFibonacci
Sequence-based progression for smoother exposure than aggressive doubling systems.
Explore StrategyLabouchere
Cancellation system for testing target-profit sessions and recovery pressure.
Explore StrategyLatest articles
Gonzalo García-Pelayo: the Spanish family that hunted biased roulette wheels
In the 1990s Gonzalo García-Pelayo and his family watched thousands of spins in Spanish casinos and looked for roulette wheels with tiny mechanical biases. The idea was not magic: if a wheel favored a group of numbers of...
Jun 25, 2026 / 4 min read
Read full storyJoseph Jagger and the wheel that broke Monte Carlo
Joseph Jagger was a Yorkshire textile man who understood spinning machinery. Around 1881 he went to Monte Carlo, watched roulette tables, and looked for imperfect balance. When he found numbers appearing more often than ...
Jun 25, 2026 / 4 min read
Read full storyThe Eudaemons: physics students, a shoe computer, and roulette
In the late 1970s, physics students J. Doyne Farmer and Norman Packard led a group that tried to predict roulette using a concealed computer. They measured the wheel and ball, tapped input with a toe switch, and received...
Jun 25, 2026 / 4 min read
Read full storyResponsible gaming
Is Roulette Lab a gambling site?
No. Roulette Lab is an educational analytics product. It does not accept deposits, bets, or real-money play.
Can simulations guarantee profit?
No simulation can remove house edge or variance. The goal is to understand risk before money is involved.