Slot RTP Explained: What Return to Player Really Means
By Scatter Drop Editorial Team · Updated 10 November 2026 · 2 min read
RTP (return to player) is the percentage of all money wagered on a slot that the game is designed to pay back to players over its lifetime. A slot with a 96% RTP is built to return, on average, €96 for every €100 staked – and keep €4.
The key words are on average and over its lifetime. RTP is calculated across hundreds of millions of simulated spins. It describes the game, not your session.
How RTP is calculated
Game studios define every symbol's frequency and payout, then calculate (and an independent test lab verifies) the expected return across all possible outcomes. Labs such as GLI, BMM or eCOGRA certify each RTP version before it can be offered in regulated markets.
Why your session doesn't match the RTP
A single session might be a few hundred spins. Over such a small sample the result is dominated by volatility – whether you happened to hit the bonus, and how good it was. On a high volatility slot, it's normal to lose your whole budget in one session and to win big in another, even though the RTP is identical. See our volatility guide.
The same slot can have different RTPs
This is the most important thing most players don't know. Many providers – Play'n GO and Pragmatic Play are well-known examples – offer operators several versions of the same game. Book of Dead, for example, is available in versions ranging from 96.21% down to the mid-80s.
| RTP | Expected loss per €1,000 wagered |
|---|---|
| 96.5% | €35 |
| 96% | €40 |
| 94% | €60 |
| 92% | €80 |
Over time, a lower RTP version costs significantly more – for exactly the same gameplay.
How to check the RTP you're playing
Open the game's info / paytable screen and look for "theoretical return to player" or "RTP". Licensed games must display it. Our guide to checking a slot's RTP walks through it step by step.
The bottom line
- RTP tells you how expensive a game is over the long run.
- It tells you almost nothing about a single session.
- Always check which RTP version a casino runs – and prefer the highest one.
- No RTP is above 100%. Over time, slots cost money to play.
RTP across providers
Average published RTPs differ a little between studios. Among the games we list, BGaming averages about 96.5%, Pragmatic Play about 96.4% and Nolimit City about 96.1%. Thunderkick averages about 95.6%, pulled down by several recent releases published at around 94%. Hacksaw Gaming publishes RTP for only some of its games. See how the studios compare in our slot providers guide.
Highest RTP slots
A handful of games publish an RTP of 97% or more – Thunderkick's 1429 Uncharted Seas (98.6%), Toki Time (97.1%) and Barber Shop Uncut (97.0%) among them. Browse the full 97% RTP slots and high RTP slots lists.
