Updated: 6 November 2026

What is RTP? Return to player and volatility explained

RTP (return to player) is the share of all money bet on a game that it is designed to pay back over the very long run. A 96% RTP slot returns on average 96 of every 100 wagered across millions of spins; the other 4% is the house edge. It predicts nothing about a single session.

How RTP works

RTP is a theoretical average calculated over an enormous number of plays. Bet €100 on a 96% RTP slot and the game will not hand you back €96: you might lose it all or win far more. What 96% means is that across every player’s bets, over millions of spins, the game pays back 96 of every 100 on average.

The flip side of RTP is the house edge: 100 minus the RTP. A 96% RTP means a 4% house edge; a 99% RTP means 1%.

Studios have their maths certified by independent test labs — Play’n GO, for example, names GLI, BMM and Quinel.

Real RTPs from the games we cover

Of the 41 games on our list with an RTP published by the studio itself, 33 sit between 96% and 97%, and the median is 96.30%.

The same game can run at different RTPs

Many studios release a game in several RTP versions and each casino picks which one to offer. Hacksaw Gaming publishes Wanted Dead or a Wild at 96.38%, 94.55%, 92.33% and 88.42%, and Push Gaming notes on its game pages that “RTP’s may vary per casino”.

How to check: open the game’s info or paytable screen inside the casino. It shows the RTP of the version you are actually playing.

Volatility: how that RTP is paid out

Two games with the same RTP can feel completely different. Volatility describes how a game pays: low-volatility games pay small wins often; high-volatility games go longer without paying but can pay much bigger wins.

There is no common scale: Hacksaw rates games 1–5, Nolimit City uses labels like “High”, “Extreme” and “Insane”, and some studios publish no volatility at all. Nolimit City also publishes hit frequency: on Mental, 34.19% of spins return a win.

Max win is a cap, not a promise

Max win is the most a single spin or round can pay, as a multiple of your bet. Among our games it ranges from 800x on Starburst to 300,000x on Tombstone R.I.P. A huge max win usually signals a very volatile game — not that you’re likely to get near it.

RTP and bonuses

Some casinos restrict which games you can play with a bonus based on RTP. Rainbet, for example, excludes slots with an RTP above 97.4% from bonus play. Always read the terms — see our guide to wagering requirements.

Key takeaways

Sources

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