What is a Monte Carlo slot simulation?

Monte Carlo simulation runs hundreds of randomised game scenarios using RTP and volatility parameters to show the distribution of possible outcomes — not just the average.

How does volatility affect slot results?

High volatility = large swings (wins are rare but big). Low volatility = frequent small wins. RTP stays the same, but the distribution of outcomes is different.

Home/RTP Simulator

Slot RTP & Volatility Simulator

Run a 500-run Monte Carlo simulation. See the real outcome distribution: best, worst, median scenarios, profit probability percentage, and a balance movement chart. Volatility controls the swing between spins.

Target RTP96%

85%99%

Volatility Level

Number of Spins1,000

1005,000

Bet per Spin ($)$1.00

$0.10$100

Sim balance: $1.00 × 1,000 = $1.00K

Set your parameters and click [ RUN SIMULATION ] to see results.

DISCLAIMER: Monte Carlo simulation is for educational purposes only. Real results depend on individual RNG sequences and can differ significantly from simulated distributions. Not a guarantee of play outcomes. 18+.

How Does a Monte Carlo Slot Simulation Work?

Monte Carlo simulation runs 500 independent game sequences, each with n spins, using your chosen RTP and volatility settings. The result distribution shows you not just the expected average — but the full range of possible outcomes, including tail scenarios (best and worst).

Example: $1,000 balance, $1 bet, RTP 96%, High volatility, 1,000 spins → median might end at $940, but the best run could be $2,100 and the worst $0. This variance is the nature of high-volatility slots.

Volatility vs RTP: What to Choose

Low volatility + high RTP: stable session, slow grind. Good for tight bankrolls.
High volatility + high RTP: boom-or-bust. Can bust early or hit massive wins.
Use the Bankroll Calculator to estimate how long your budget lasts with your chosen settings.
Cross-check with Live RTP to pick the right game for your chosen strategy.