Quick facts about playing the highest RTP slots
Before we get into the rest of this guide, here’s a quick look at its takeaways:
- High RTP slots have an RTP of at least 96%.
- You’ll find varying levels of volatility in slots with high RTP.
- Having a high RTP doesn’t guarantee short-term winnings from a slot.
- Some of the top slots with high RTP are Ugga Bugga, Steam Tower, and Sizzling Hot Deluxe.
What is RTP, and how does it work?
RTP in iGaming stands for ‘Return To Player’. It’s a term that describes the percentage of the funds wagered on a casino game that will be returned to players over a specified period. Let’s say a casino game has an RTP of 98%. What that percentage means is that for every £100 staked on that game, you can expect, on average, £98.
Playing a casino game with a high RTP doesn’t mean that you’ll score huge winnings from a single gaming session. That’s because RTP ratios are merely theoretical values, and each gaming session comes with a measure of unpredictability. However, playing casino games with higher RTP percentages can help you become more successful with your wagers.
How do online slot RTPs compare to other casino games?
Interestingly, online slots often have lower RTPs compared to other casino games. For instance, blackjack has an average RTP of around 99%, European roulette has an RTP of 97.3%, and with baccarat, the RTP can reach up to 98.94%.
Most popular online slots, on the other hand, have RTP percentages that are between 92% to 97%. Regardless of the differences in RTP between slots and other casino games, slots are still the most popular gaming option at online UK casinos. That’s because slots are easy to play and come with a variety of themes, features, and game mechanics that enhance the gaming experience. Most casino slots with the highest RTP add a higher potential for larger payouts to this enhanced experience.
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What’s a good RTP for online slots?
For slots, an RTP percentage of around 96% is considered good, while RTPs above 97% are considered high. High RTPs in slots indicate a lower house edge and higher long-term payout potential for players. Conversely, slots with an RTP below 95% are termed low RTP slots and are generally considered less favourable because of the relatively higher house edge that they have.
What is the difference between RTP and volatility in online slots?
A slot’s volatility could be either low, medium, or high, and each range tells you how frequently the slot pays out. Based on our experience, the higher the slot’s volatility, the less frequent its payouts and vice versa. However, high volatility slots come with larger payouts than low volatility slots. Medium volatility slots strike a balance, offering mid-range payouts at a steady pace.
Although many top slots have varying levels of volatility, it’s also common to find low RTP slots with high volatility. Since RTP and volatility deal with different aspects of gameplay, it’s always important to put both aspects into consideration when picking slots to play.
How to tell if a slot has a high RTP
The best way to determine a slot’s RTP is to look for it in the game details or help section. Look for an “i” icon or a help button on the game screen after launching it. Clicking on either the icon or the help button reveals a description of the game, including its features, paylines, and RTP.
You can also find what a slot’s RTP is by looking up the game’s description in the site’s library or by checking the game developer’s website, where such information is often published.
What are the highest RTP slots in the UK, and where can you play them?
Knowing how high RTP slots work is one thing, and knowing what the highest RTP slots to explore are is another. Here’s a description of the top RTP slots and the best places to play them.
BetMGM – Best place to play Sizzling Hot Deluxe online
Based on our findings, we’d rank BetMGM as one of the
best sites to play slots online. It offers its new players 200 free spins when they deposit £10. Besides the welcome offer, the site also offers existing players promotions, such as the MGM Millions Mega £32M jackpot and Pragmatic Play’s Drops & Wins promo, which comes with £2M in monthly prizes. Players can also spin the Golden Wheel daily to win exciting prizes.
During our research on what slot machine has the highest RTP in the UK, we found BetMGM to be the best place to play Sizzling Hot Deluxe. That’s because the game is one of the eligible games for the site’s Millions Mega Mega £32M jackpot. Although it doesn’t have the highest RTP, its 5,000x maximum multiplier offers enough reason to play it. Here’s a quick description of the Sizzling Hot Deluxe slot.
| Feature |
Details |
| Developer |
Novomatic |
| Reels |
5 |
| Rows |
5 |
| Year of release |
2007 |
| Paylines |
5 |
| Maximum multiplier |
5,000x |
| RTP |
95.66% |
| Theme |
Retro |
| Volatility |
Low |
| Bonus features |
Free Spins and Multipliers |
Betano – Best gambling destination to play Steam Tower
As a new player at Betano, you’ll receive a £20 slot bonus to play Fishin’ Frenzy The Big Catch 2 after making a £10 deposit. However, Betano didn’t make this list because of its welcome bonus. We’ve considered Betano one of the best places to play slots with the highest RTP, like Steam Tower, because of its mobile gaming experience.
The site offers a sleek and highly functional native app that’s available to both iOS and Android users. You’ll find the app easy to use, and it offers a great on-the-go experience when playing Steam Tower. We also like that you don’t need downloads to play Steam Tower on the go at Betano. The site is fully optimised for mobile devices and offers the same functionality as the desktop version.
Here’s a quick look at what the Steam Tower slot is about.
| Feature |
Detail |
| Developer |
NetEnt |
| Release year |
2015 |
| Theme |
Steampunk |
| Paylines |
15 |
| RTP |
97.04% |
| Maximum multiplier |
2,000x |
| Volatility |
Medium |
| Reels |
5 |
| Rows |
3 |
| Bonus features |
Stacked Wilds and Free Spins |
Betfred – Best site to play Ugga Bugga
Betfred: Pros & Cons
- Very generous welcome offers
- Multiple product-specific bonuses
- Trusted, long-standing UK brand
Betfred offers its new customers up to 200 free spins after they’ve signed up and wagered £10 on its slots titles on a number of designated slots. You’ll get to choose any of 50 free spins (at £0.20) on Age Of The Gods, 100 free spins (at £0.10) on Better Wilds, or 200 free spins (at £0.05) on Age Of The Gods: God of Storms 2.
Betfred also offers other promotions for its existing casino players, such as Mystery Free Spins, Mystery Free Spins Upgrade, and Comp Points. These promotions offer you plenty of bonus spins to try out some of Betfred’s top slots with the highest RTP.
Speaking of which, let’s have a quick look at what to expect from the Ugga Bugga slot, which has one of the highest RTPs you’ll find on an online slot in the UK.
| Features |
Details |
| Developer |
Playtech |
| Year of release |
N/A |
| Reels |
3 |
| Rows |
10 |
| Theme |
Jungle |
| RTP |
99.07% |
| Volatility |
Low |
| Maximum multiplier |
1,000x |
| Bonus features |
Totem Wilds |
Kwiff– Lots of slots to explore
Kwiff UK: Pros and Cons
- Excellent mobile betting app
- Generous welcome bonus options
- Great live betting features
- Limited payment method choices
If you sign up to Kwiff, you’ll be awarded a welcome casino offer of up to 200 free spins on the Book of Dead slot. You can also explore a Spin Gift network promotion that offers 100 free spins and a Wild Spin promo from Playtech. With the latter promo, you’ll get a slice of a £1,000 prize pool if you finish in the top 50.
Kwiff boasts 4,600+ casino games, including table games, slots, live casino, crash games, jackpot slots, and virtuals. Naturally, it was one of the first places that we checked when looking for the best slots with the highest RTP. You can use the bonus spins the site awards you to explore any of your preferred high RTP slots.
Pros and cons of playing the highest RTP slots
If you’re still sitting on the fence when it comes to exploring high RTP slots, here are the upsides and one downside of playing them:
Pros and Cons
- Lower house edge
- Better long-term returns
- Lots of available options
- Exciting features and themes
- Possible low payout frequency
Conclusion – You’ll have fun playing the highest RTP slots
Based on our tests, Ugga Bugga, Steam Tower, and Sizzling Hot Deluxe are the best slots with high RTPs to explore. That’s because, in addition to their RTPs, these slots offer a range of other features that enhance the overall gaming experience.
Our tests also revealed that BetMGM, Betano, Betfred, and Kwiff are the best sites to explore these slots. Each of our recommended sites provides several promotions for new and existing players, which make playing these slots a lot more fun. Betano in particular offers a seamless mobile gaming experience and is a great option if you enjoy playing on the go.
Now that you know which slots have the highest RTP, click on the links on this page and follow the prompts to have fun.
UK online slots review
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Highest RTP slots FAQs
🎰 Do high RTP slots offer larger payouts than other slots?
They can, over the long term. However, there’s no guarantee that they do during any given gaming session.
💸 What does it mean for a slot to have an RTP of 98%?
It means that for every £100 staked on that slot, you can expect, on average, £98.
🏆 What slots have the highest RTP, and where can I play them?
Ugga Bugga, Steam Tower, and Sizzling Hot Deluxe have some of the highest RTPs, and you can play them at BetMGM, Betano, Kwiff, and Betfred.
