What is RTP in Slots? Return to Player Guide

RTP Slots

Many novices underestimate the importance of the return to player (RTP) metric. But what does RTP mean? It's essentially the percentage of bets a slot machine pays back to a punter over a long period of time. Return rate is one of the most crucial points to consider when the choice of a casino game is in mind. This page will help novices navigate the metric better next time they decide on which title to play.​

What Does RTP Mean in Slots?

RTP stands for Return to Player. The most common practical example is, if a slot has a 96% RTP, it should pay back £96 for every £100 that the participant spends on bets on the game. But mind that this percentage can only be calculated over a large number of spins, starting from a thousand and more.

A person won’t really be able to see the influence of a slot RTP on their playing experience if they only launch the title in short sessions.

A lot of people mix this up. For many, 96% RTP is a sign that they will only lose 4 pounds for every 100 pounds they pay for rounds. It’s a common mistake. The percentage represents what happens across countless spins from thousands of different players. One person might hit a massive win whilst another loses their entire budget – both spinning the same game with the same RTP.

How Slot RTP Works?

There's an interesting relationship between how RTP works and something called house edge. In short, these metrics are two sides of a coin. When a virtual slot shows 96% return, then the HE is calculated at 4%. That 4% is essentially the casino's theoretical profit margin stretched across thousands of players and millions of spins.

Here's where how slot RTP works gets interesting. Let's take a hundred people in our example. Imagine that each individual invests £1,000 into a 96% RTP slot. The total investment amounts to £100,000. The machine will pay out roughly £96,000 across everyone. But – and this is crucial – the distribution gets wild. Someone might walk away with £5,000. Another person loses everything. A few people break even. The slot doesn't care about fairness in individual sessions; it only cares about that overall percentage.

Who Assigns Return to Player Rates?

Developers in the iGaming sector use RTP and build it into their games using special Random Number Generators (RNGs). These are not very hard to figure out, even if you are not a very experienced or knowledgeable player. They're basically algorithms that ensure every spin is completely independent and random, yet they maintain that programmed percentage over the long haul. A slot doesn't remember what happened a spin ago, ten spins ago or ten thousand spins ago.

How Does Slot RTP Classify in Levels?

The iGaming industry tends to group slots into categories based on their return rates. There may be some sub-groups, but these patterns hold pretty consistently:

RTP LevelDescriptionExamples
Low RTP slotsSuch titles usually sit below 94%. These often come with jackpots that grow and accumulate over time or really elaborate bonus features that justify paying back less during regular play. Mega Moolah Goddess (88%), Book of Atem WowPot (88.2%), Tunzamunni (90.03%)
Medium levelFalls between 94-96%, which is basically the industry standard. Chaos Crew 2 (96.31%), Ghost Father (96.42%), Razor Shark (96.7%)
High RTP slot gamesGo above 97%, sometimes reaching 98% or even higher in unusual cases.Epic Joker (97%), Gaelic Luck (97.06%), The Catfather (97.10%)

Return Ratio in Progressive Jackpot Slots

As said above, slot machines with cumulative jackpots typically show lower RTP %. Usually sitting between 85-95%. This isn't developers being greedy – there's actually a logical reason. A portion of each wager feeds the growing jackpot pool instead of returning through regular gameplay. This allocation necessarily reduces base game returns but creates those life-changing possibilities that make headlines.

Why High RTP Slots Benefit Players More?

Basically, a better payout rate means you get more money back over time, so it's cheaper to play. The lower RTP game literally costs twice as much over the same amount of play. High RTP slot games of 97% offer genuinely better value than a 94% one. Over 10,000 spins at £1 each, that 3% difference translates to £300 in theoretical returns. That's not pocket change.

Still, higher RTP doesn't prevent losing streaks or guarantee winning sessions. Variance and plain old randomness still dominate what happens in any particular gaming session. But stretch that plays out over hundreds or thousands of spins, and the programmed percentage becomes increasingly influential.

Top High RTP Slots in the UK Market

Here, then, is a look at the slot machines with the highest return rates on the UK market. Examine a lineup of games which pay back over 97.5% and compare titles.

Slot NameRTP PercentageSpecial FeaturesProvider
Ugga Bugga99.07%Hold functionPlaytech
Mega Joker99%Supermeter modeNetEnt
Blood Suckers98%Bonus gameNetEnt
Starmania97.87%Stacked wildsNextGen
White Rabbit97.72%MegawaysBig Time Gaming

Where to Find RTP Information in a Slot?

Finding slots RTP details used to be very hard in the past. However, new regulations in the iGaming sector obliged all developer companies and online casinos to specify theoretical rates of their games and make them transparent for players.

The game itself usually has an information button – often a little "i" icon or a menu. Click that, and somewhere in the rules or settings, the RTP appears. Provider websites list their games with full specifications, including return percentages. Many casino lobbies now display the RTP meaning right alongside each title.

Return Rates Across Different Casino Games

When it comes to table and card games, or even titles with real human dealers, they tend to offer larger RTP figures in comparison to slot machines. Skill-based games like blackjack and video poker let player decisions influence actual returns. Slots remain purely chance-based. Strategy doesn't change outcomes.

Our team has looked at return rates across various game types:

  • Blackjack. Dominates with RTPs reaching 99.5% when played with proper blackjack strategy.
  • Roulette. European wheel offers around 97.3% RTP. American wheel drops to 94.74% because of that double zero.
  • Baccarat. Provides solid returns of around 98.94% on banker bets.
  • Video poker. In different variants, return to player can exceed 99% with perfect play.
  • Craps. Varies wildly depending on bet types, ranging from 98.6% down to 83%.

Can Casino Operators Rig RTP Settings?

No, UK-licensed casinos can't just change RTP in online slots whenever they want. There are checks and balances to stop that from happening. Certified game files arrive sealed from providers. Casinos get complete packages that they cannot modify without breaking certifications and violating their licences. Some providers do offer configurable RTP options – maybe 94%, 96%, or 98% versions of the same product. However, these preset options come from the developer, not the virtual casino.

Can players change the return rate in a slot?
Can players change the return rate in a slot?

In fact, players cannot change a slot's programmed payback. However, certain games offer different RTP rates depending on how users engage with optional extras. Buying bonus rounds directly, when that option exists, sometimes provides higher return rates than just spinning normally. UK citizens lack the chance to test the Bonus Buy feature, as it is cut from releases due to local gambling regulations.

Who Controls Return To Player Figures?

Independent testing labs conduct surprise audits, comparing what's actually RTP slot running in casinos against certified versions. 

Any discrepancy triggers serious consequences. Outfits like eCOGRA, iTech Labs, and GLI run tons of simulated spins to make sure the actual payouts are what the game maker said they'd be. And they don't just check once; certifications are renewed now and then.

Different countries have their own groups that set the lowest payout rates. The UK Gambling Commission, Malta Gaming Authority, and others say games have to pay back at least a certain amount, usually around 85-90%. Most new games go way above these minimums, though.

Understanding Volatility Alongside RTP

RTP meaning only tells half the story, really. Volatility (sometimes called variance) dramatically affects how returns distribute over time:

  • Low volatility slots pay smaller wins frequently. Bankrolls stay relatively stable.
  • High volatility slots generate winnings less frequently, but potential rewards are much more noticeable.

Two slots, both showing 96% RTP, can feel completely different based on volatility alone. If you're after huge payouts and can stomach some losses, high volatility games might be your thing. Low variance stands behind small wins that land on the grid at more regular intervals. Knowledge about the RTP in slot games and volatility helps novices and savvies pick reels that fit their expectations and budget.

Our Summary

Understanding the Return To Player concept gives punters actual power to make smarter and more strategic decisions about which slots to play and what to realistically expect. No percentage can tell for sure that you will win and get a payout. But products with larger return percentages pay back bigger amounts over the longer terms. Our team advises that UK punters focus on high RTP slots (above 96%) if they plan to play at regular intervals. Check the information before playing.

FAQ

📊 What is RTP in online slots and other casino games?

This basically means the “return” of the game on your bets. It is calculated over time, and you can’t influence it in any way. Most slot machines on the UK market have RTP set between 95% and 96%. The latter figure is the clear average for the industry.

📊 What is a good RTP for online slots?

Slot titles have good returns if their RTP is set at 96%. In the event of a payout ratio of 97% or higher, such games are even better for the user's bankroll in the long run.

📊 Does RTP influence my payout opportunities in a slot machine?

Yes, but only over time, since it is calculated over a thousand or more bets. That is to say, you won’t be able to feel the RTP fully if you only play the game in short sessions.

📊 Can a casino operator rig slot RTP?

No, it is not possible and/or permitted for licensed and credible online gambling platforms. Moreover, there are many legal entities (e.g. eCOGRA) that audit casinos for any kind of misconduct.

📊 Why are high RTP slots more favourable for players?

The slot designed with a higher Return to Player figure will pay back a bigger chunk of the wagers that the user spent on gameplay in it. This maximises long-term value.

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Lead iGaming Expert at Cardmates
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