RTP Explained: What Return to Player Really Means
Updated on July 2, 2026 by the editorial team
Every slot and table game at Rainbet carries a number called RTP, and it quietly shapes how much of your stake tends to come back over the long run. Return to Player is the percentage of all wagered money a game is designed to pay out across millions of rounds. A 96% RTP slot returns £96 for every £100 staked on average, spread over a huge sample of spins.
Understanding this figure helps you compare games sensibly and set realistic expectations before you play. Below we break down what the percentage measures, where to find it, and why it never guarantees the outcome of a single evening.
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What return to player actually measures
RTP stands for Return to Player. It is a theoretical payout percentage calculated by the game studio over a very large number of rounds, often hundreds of millions of simulated spins or hands.
Take a slot rated at 96.5%. That figure means the maths behind the game is built to return £96.50 for every £100 wagered, averaged across its full statistical cycle. The remaining 3.5% is the house edge, the built-in margin that keeps the casino running. Every real-money game carries one, and RTP simply expresses it from the player's side of the table.
One point matters more than any other here. RTP is a long-run average, not a promise for your next session. The number describes the behaviour of the game across an enormous sample, far larger than anyone plays in a lifetime. Short bursts of play swing wildly around that average, which is exactly why slots can pay a big win one minute and nothing the next.
You will sometimes see RTP paired with volatility. They answer different questions. RTP tells you how much comes back over time; volatility tells you how bumpy the ride is on the way there. A high-RTP, high-volatility slot can still empty a balance quickly before it delivers.
Reading the percentage without getting fooled
The maths is simpler than it looks. Subtract the RTP from 100 and you have the house edge.
- 96% RTP means a 4% house edge.
- 97.5% RTP means a 2.5% house edge.
- 94% RTP means a 6% house edge.
Higher RTP means the game is designed to hold back less of your money over time. So a game at 97% is, in pure mathematical terms, more generous than one at 94%. That gap looks small on paper. It adds up across hundreds of spins.
Be careful with the word "average", though. RTP is calculated assuming you play the game as intended, at standard settings. Some slots publish a range rather than a single figure because they have selectable features. Buying a bonus round, for example, often runs at a different RTP than base play. Blackjack and video poker RTPs assume optimal strategy; play a weaker hand and your real return drops below the printed number.
A final word on marketing. A very high advertised RTP does not automatically make a game the best choice for you. Volatility, bet limits, and how the features trigger all shape the actual experience. Read the percentage as one useful signal, not the whole story.
Finding the figure before you spin
The RTP is rarely hidden, but it is not always front and centre either. Here is where to look for it on games available at Rainbet slots and beyond.
Start inside the game itself. Open the paytable or info screen, usually reached through a small "i" icon or a menu button in the corner. Most modern slots list the theoretical RTP near the game rules, often on the last page of the info panel. This is the most reliable source because it reflects the exact build the operator is running.
Provider websites are the second place to check. Studios such as BGaming, Yggdrasil, Thunderkick, Spinomenal and Platipus publish game specifications, including RTP and volatility, on their official pages. If a slot on our games catalogue comes from one of those studios, the maths is documented there too.
A note of caution. The same game can ship with more than one RTP version, so a slot listed as 96% on one site might run at 94% on another. Always trust the figure shown inside the game you are actually playing over a number quoted in a third-party review. If the paytable and an external source disagree, the paytable wins.
Why the number won't decide your night
This is the part players most often get wrong. RTP does not predict what happens in a single session, an hour, or even a week of play.
Picture a coin flip. Over a million tosses you expect close to a 50/50 split. Toss it ten times and you might land eight heads. The long-run probability is real, yet short samples deviate hard from it. Slots work the same way. A 96% RTP slot can take your whole balance in twenty spins, or hand you a 500x win on the third. Neither result breaks the maths.
Each round is independent. The random number generator that decides every outcome has no memory of previous spins and does not "owe" you anything after a losing streak. A game is not "due" to pay because it has been cold, and it will not tighten up after a big win. This is the gambler's fallacy, and it costs players money when they chase losses expecting a correction that the maths never promises.
So treat RTP as a comparison tool for choosing games, never as a forecast for your bankroll. Set a budget you are comfortable losing, decide it in advance, and stick to it regardless of the printed percentage. Support is available around the clock through live chat and email if you ever want to set limits or take a break, and free help is offered by BeGambleAware and GamCare.
How RTP varies across game categories
Different game types sit in different RTP bands. Table games with strategy tend to run higher than slots, while jackpot games often run lower because a slice of every bet feeds the prize pool. The table below gives typical ranges you will encounter.
| Game type | Typical RTP range | House edge | Notes |
|---|---|---|---|
| Blackjack (optimal play) | 99.0% – 99.7% | 0.3% – 1.0% | Requires basic strategy to reach the top of the range |
| Video poker | 98.0% – 99.5% | 0.5% – 2.0% | Depends on paytable and correct play |
| Baccarat (banker bet) | ~98.9% | ~1.1% | Banker bet is the strongest; tie bet is far worse |
| European roulette | ~97.3% | ~2.7% | Single zero; American wheel drops to ~94.7% |
| Video slots | 94.0% – 97.0% | 3.0% – 6.0% | Most common band; check each game's info screen |
| Progressive jackpot slots | 88.0% – 94.0% | 6.0% – 12.0% | Lower base RTP because part of each bet funds the jackpot |
Read these as broad guides, not fixed values. Individual titles vary within each band, and the exact figure always lives in the game's own paytable. For a wider look at how payouts, licensing and fairness fit together, see our guide on how online casinos work.
Common questions about RTP
Does a higher RTP mean I will win more often?
Not necessarily. Higher RTP means the game returns more of the total wagered amount over the long run, but it says nothing about how often individual wins land. A high-RTP slot can still be high volatility, meaning long dry spells between payouts. Win frequency is governed by volatility, not RTP.
Can a casino change a game's RTP?
Operators cannot alter the maths of a game themselves. However, many studios release the same title in several RTP versions, and the operator chooses which one to load. That is why you should always read the RTP shown inside the specific game you are playing rather than relying on a figure quoted elsewhere.
Is RTP the same as my chance of winning a single spin?
No. RTP is a long-run payout percentage measured across millions of rounds. Your chance on any one spin is set by the random number generator and is independent of previous results. A 96% RTP does not mean you get 96p back every time you stake £1.
Do wagering requirements affect the RTP I actually get?
Bonus play does not change a game's RTP, but wagering requirements affect how much value you keep. At Rainbet the welcome offer of 100% up to £1,000 + 100 FS carries wagering of x40 on the bonus, valid for 7 days. Playing lower-RTP games while clearing a rollover statistically costs you more, so check the bonus terms before you start.
Where is the most reliable place to check a game's RTP?
Inside the game. Open the info or paytable screen through the "i" icon and look for the theoretical return, usually on the final page of the rules. That figure reflects the exact version running, which a third-party review cannot guarantee.
Official sources
