Variance Simulator

Run Monte-Carlo simulations to visualize how variance affects your balance over hundreds of thousands of spins.

Pick a slot to auto-fill its RTP and volatility for the simulation.
Return to Player percentage of the game
%
Determines how much balance swings per spin
EUR
1005001k5k10k50k100k1M
Your bankroll at the start of the simulation
EUR
52050

Balance over Time (20 Paths)

This simulator uses a Gaussian approximation of slot variance for illustrative purposes. Real slot outcomes follow different distributions. Results are not a guarantee of any actual outcome.

See how variance really hits your bankroll

Run Monte-Carlo simulations to understand the swings behind any RTP and volatility.

Monte-Carlo simulation

Run hundreds of thousands of spins across many simulated bankroll paths.

Multi-path balance chart

Visualize how different runs diverge over time on one chart.

Bust rate

The share of runs that lose the entire balance.

Median, best and worst

Compare the median outcome with the luckiest and unluckiest runs.

Average max drawdown

How deep your balance typically dips before any recovery.

Profit paths

What share of simulated runs end in profit.

Frequently Asked Questions