Slot machine simulator
A three-reel machine with its weights and paytable printed on the page — which no real slot does. Spin it and watch the return converge on the theoretical figure. The point is not the game; it is seeing what "96% RTP" feels like from the inside.
| Symbol | Reel weight | Three | Two | Hit rate |
|---|---|---|---|---|
| ◆ Diamond | 1 / 54 | 1000× | 25× | 0.0006% |
| ★ Star | 3 / 54 | 150× | 8× | 0.0171% |
| ● Coin | 6 / 54 | 40× | 2× | 0.1372% |
| ▲ Prism | 10 / 54 | 15× | 0.5× | 0.6351% |
| ■ Block | 14 / 54 | 6× | 0.75× | 1.7426% |
| ▬ Bar | 20 / 54 | 2× | 1× | 5.0805% |
Return to player, observed
Spin a hundred times and the number above will be nowhere near the theoretical one. Spin ten thousand and it will be close. That gap is the product.
Latest results
LiveWhat a real slot hides
This machine publishes its reel weights, so you can compute the RTP yourself: sum, over every symbol, the probability of three-of-a-kind times its payout, plus the probability of exactly two times its payout. That comes to 96.25%.
A real slot gives you the paytable and withholds the weights, which is the half that matters. Two machines with identical paytables can run at 96% and 88% purely through how often each symbol is placed on the reel strips. Regulators require the RTP to be disclosed somewhere; almost nobody reads it, and the crypto casinos often list it per-game in a help article rather than on the machine.
Hit frequency is the other lever. This machine pays something on 61% of spins — it feels generous. But 38% of those "wins" return less than the stake: a 0.5× hit on a 1-unit bet is a 50% loss dressed up with a sound effect. That is deliberate, it is industry-standard, and it is why slots feel busy while returning less than any other game on the floor.
How to use the slot machine simulator
- The reels spin continuously on a paytable printed in full below them.
- Note how many "wins" pay less than the stake.
- Spin 10,000 at once and compare the observed RTP to the published figure.

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