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What are RTP versions, and why does the same slot pay differently?

Many slot makers release a game in several RTP versions (for example 96%, 94% and lower), and each casino chooses which version to run. So the same slot can have a different published RTP from one casino to the next, and players often end up on a lower version without knowing.

The version you're playing is set by the casino, not the game. In our Book of Dead study the top published version is 96.21%, but a deployment scan found most casinos running a lower 94.25% version. We see the same pattern on Legacy of Dead, where 12 of 16 scanned casinos displayed the 94.51% version, and most dramatically on Rise of Olympus, whose published ladder spans a full 12 points from 96.50% down to 84.50%.

The takeaway: check the published RTP of the exact version at your casino, and play where it runs the highest published version. Our casino hub ranks operators by exactly that.

FAQ

How do I know which RTP version a casino runs?

Reputable casinos publish the RTP in the game info panel; our casino pages track which version operators run on studied slots.

Is a lower RTP version cheating?

No, it's a legitimate published version. But it returns less over the long run, so the version matters.

run your own experiment in the simulator

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