Slots / NextSpin
Joker King
NextSpinTesting now
We don't trust this measurement yet
Our measured return for this game is 56.5% against a published 96.8%, and that gap is about 11 times our own margin of error. Every other game in the lab sits within two. We also have not recorded a single free-spin round here in 53,700 spins, while other games from the same provider trigger one every few hundred. The likeliest explanation is not that the game returns 56.5% — it is that we are missing the rounds where it pays the most. We are leaving the page up because hiding it would be worse, but do not quote this return figure. The hit rate and the share of wins below the stake are counted per spin and are unaffected.
The dashed line is the official RTP. The more spins, the closer it should get — and the narrower the shaded range.
The official numbers — and whether they hold up
Read from the game's own settingsOfficial RTP is 96.81%. Over 53,700 spins we measured 56.5% — likely range 52.8% to 60.2%. The official figure falls outside that range, which is unusual and worth more spins before we draw any conclusion.
Why the range is so wide: almost all of a slot's payback sits in a handful of rare big wins, so the measured return stays noisy for a very long time. Getting this range down to ±1 point on a high-volatility game takes millions of spins. That's why we lead with hit rate and free-spin frequency instead — those settle within weeks.
- RTPi
- 96.81%
± is the margin of error: the range the true figure is probably in, given how many spins this is based on.
Similar slots
- Golden Fa ★
- 97.01%
- Prosperity Dragon ★
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- Prosperity Horse ★
- 96.83%
- Prosperity Snake ★
- 96.83%
- Treasure of Atlantis ★
- 97.06%
- Cleopatra's Fortune ★
- 96.97%
Looking for the free demo?
Every slot here has an official free demo run by NextSpin itself — that is exactly where our numbers come from. We don't link out to anyone, so here's how to find it yourself: search the game's name together with "NextSpin" and open the result on the provider's own website, where each game has a Demo button. No account, no deposit.
Why bother finding the official one: a casino can license a lower-RTP version of the same game. The demo on the provider's own site is the default configuration — the one our numbers describe.
FAQ
- Is this data real?
- Yes. Every number on OddsLab comes from spins we actually ran on the provider's own official free demo, recorded by a program that logs every spin and reconciles the balance after each one. If the balance doesn't match the win minus the bet, the line stops and we don't keep the data.
- Does a long losing streak mean a win is coming?
- No. Each spin is independent. Our hot-slot experiment groups real spins by drought length: the chance of free spins is the same after 10 empty spins as after 500.
- Is the demo the same as real-money play?
- The game maths in the demo is the provider's default configuration. Casinos can license lower-RTP versions of the same game, so real-money results can be worse than what we measure — never better.
- Can I use this to beat the slot?
- No. These numbers describe a game's character — how often it pays, how many "wins" are really losses, how rare the big wins are. None of it predicts the next spin, and over time every slot pays back less than you put in.
- Why don't you just publish the measured RTP?
- Because at our sample sizes it isn't a usable number yet. On a high-volatility slot the measured return can be fifteen points off in either direction after 40,000 spins. We show it with its margin of error and lead with the figures that are already accurate.
Figures as of 2026-10-06 10:48 UTC