Slot simulator
Plays thousands of sessions using a game's published outcome table. Nothing is wagered. Use it to see how far a budget goes and how wide the range of results is.
Pick a game to start.
Where 2,000 sessions ended
How it works: the first time a mode is simulated we download its full published outcome table once and group payouts into about 45 bands, each with its exact average payout. Sampling those bands reproduces the mode's RTP exactly; only the spread inside a band is smoothed. Sessions use a fixed random seed, so the same inputs give the same result. Every mode returns less than it costs over time, and a simulation is not a prediction of any real session.
What the simulator shows
RTP is a long-run average across millions of rounds. A session is a few hundred rounds, and over that span the result is dominated by rare large payouts. The simulator plays the same session 2,000 times so you can see the spread: how many sessions end above the starting budget, how many run out before the last round, and where the middle of the pack lands.
Want the theory first? Read what RTP means and slot volatility explained.
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