Best Casinos With High RTP Slots
Choosing the right casino is key when looking to play high RTP slots. To give you a helping hand, we’ve outlined our top recommendations below. Simply select your favourite and click the respective link to get started – there will even be a generous welcome bonus that will help kickstart your journey!
- 100% bonus up to £50
- 100 bonus spins
Terms and Conditions Apply. New Players Only. 18+. Min deposit £20. Wagering requirement apply 35x. Offer valid for 24hr
- 100% up to £25 + 20 Bonus Spins on Sahara Riches
- Great selection of games
- Multi-awarded casino
18+. New customers. Opt-in required. 20 Bonus Spins on “Sahara Riches Cash Collect” at 10p per spin and 100% Deposit Bonus up to £25 on first deposit (payment method and play restrictions apply). Min. deposit £10. 30x wagering for Bonus Spins and Deposit Bonus (game weighting applies). Max. £5/spin or £0.50/line. 30 days expiry. Please gamble responsibly • BeGambleAware.org • T&Cs apply
- High-quality games
- Loyalty scheme
- 50 Bonus spins!
18+. Play Safe. New UK customers only. Opt-in required. 1x per customer. Free spins on Lucky Mr Green only. Max. 50 free spins at £0.10/spin with 35x wagering. Spins expire 72 hours from issue. Game, country, currency, player restrictions and terms apply.
- Over 4,700 games
- 24/7 live chat support
- Loyalty Club
- Support from top game providers
- Tiered welcome bonus
- Over 2,700 games
- 24/7 customer support
- Tiered welcome bonus
- Games from top providers
- 24/7 customer support
- Loads of reload bonuses
- 11 no wager spins on first deposit
- 100% deposit bonus up to £200
- Stake £10 to unlock 200 free spins
- Household name
- Great slots
New customers only. Opt In required. £/€10 min stake on Casino slots within 30 days of registration. Max bonus 200 Free Spins on selected games credited within 48 hours. Free Spins expire after 7 days. iOS app restrictions may apply. Email/SMS validation may apply. Not available in NI. Full T&Cs apply.
- Deposit match and free spins
- Huge games library
- Live casino experts
18+ new players only. Min deposit: £20. Max £100 bonus. Max bet with active bonus: £2. Wagering required 100% match bonus: 30x deposit + bonus. Max win from welcome bonus: £500. 100 Free Spins are given out 20 per day on Book of Dead for 5 days in a row. Max Free Spins winnings: £100. Free Spins winnings credited as bonus money with 45x wagering & 3 days expiry. Deposit bonus & Free Spins wins are forfeited 30 days after bonus is credited if the wagering is not met. Game weighting and restrictions apply. Play Responsibly www.begambleaware.org. Full T&C’s apply.
- £50 Welcome Bonus
- 50 Bonus Spins on Book of Dead
- Loyalty Rewards for Regular Players!
18+. New players only. 100% bonus on first deposit up to £50 plus 50 Bonus spins (30 spins on day 1, 10 on day 2, 10 on day 3 for Rich Wilde and the Book of Dead slot only. Min first deposit £10. Max bonus £50. Max bonus bet £5. Max bonus cash-out £250. 40x wagering requirements. Bonus expiry 30 days. Bonus spins expiry 2 days. Game restrictions apply. Further Terms Apply. BeGambleAware.org.
- Great gamification
- Generous welcome package
18+. New Players only. 100% bonus on first deposit up £50 & 100 Bonus spins (50 spins on day 1, 25 on day 2, 25 on day 3) for Book of Dead slot only. Min first deposit of £10. Max bonus £50. Max bonus bet £5. Max bonus cash-out £250. 40x wagering requirements. Bonus expiry 30 days. Bonus spins expire after 48 hours. Game restrictions apply. Further Terms Apply
- Up to £20 & 50 Free Spins
- Promo code: GET100
- Casino launched in 2021
- £100 and 100 bonus spins in bonus
- Over 400 games
- 200% bonus for new players
- Deposit £10, play with £30 + 30 free spins
- 500+ slot games
- Attractive site
- Regular promotions
- All the top providers
What Is RTP In Slots?
For those familiar with online slots and the terminology that surrounds the iGaming industry, RTP is best described as a reverse house edge. Ultimately, it’s the mathematical advantage a casino has during each game round, expressed as a percentage.
However, we understand that newer players may be somewhat confused by certain terms and phrases they come across when gambling online. Therefore, we’ll aim to clarify precisely what the term RTP means.
During the development stage, studios run simulated spins to test how a game’s math model works, and we’re talking millions, if not billions of them. The reason being is that they’re looking to see how much money is paid during this time and whether it correlates with the game’s RTP.
For example, let’s say a slot has a 96% RTP. Theoretically, this means that if you wager £100, you can expect to see a £96 return.
However, what you must bear in mind is that because the RTP is calculated over such a larger number of spins, you will see deviations during the short term – you could end up with solid returns or you could just as easily lose your entire bankroll.
Ultimately, if you play through enough spins, your returns will begin to more closely reflect the slots listed Return to Player percentage – remember, though, this is from a theoretical standpoint.
How To Find The RTP In An Online Slot
Check the game’s paytable
Beware of varying RTP levels
However, certain providers release titles with varying RTP levels, which allows operators to adjust backend settings and tip the scales in their favour. So, just because you see a slot advertised with a certain RTP, it doesn’t necessarily mean all casinos have it set to the same level.
For more information, we recommend that you check out our in-depth RTP guide – it explains this topic in much greater detail.
RTP And Volatility
High volatility slots tend to favour delivering larger wins in shorter periods, but you’ll likely see fewer less valuable payouts. These types of slots may not be best suited to casual players or those of you playing with a limited bankroll as they tend to involve much more risk. However, they are often some of the highest RTP slots available.
Conversely, low volatility slots usually award payouts at a much more consistent rate. They’re a good choice if you’re looking to keep your bankroll ticking over as you go in search of special in-game bonuses and features, but they often don’t have the capability to produce huge hits like their high variance counterparts.
List Of The Highest Rtp Slots
So, now that you have a complete understanding of what the terminology means, the question is: what are the highest RTP slots? Well, to answer that we’ve handpicked 10 of the best RTP slots currently available and we’ve outlined what you can expect from them below.
Developed by Relax Gaming, Book of 99 is played across a traditional 5×3 reel layout that comes with 10 fixed paylines and offers wins worth up to 5,000x your stake. With an Ancient Greek theme, this is something of an unconventional ‘Book of’ slot due to its staggering 99% RTP and multi-activation free spins feature.
Not only can you naturally trigger the main bonus by landing 3 Scatters during a single spin, but the inclusion of the game’s Collection Feature offers you a guaranteed method of triggering the free spins – collect 100 Wilds during your session and you’re in!
As far as classic slots go, NetEnt’s Mega Joker has long been a fan-favourite since its release back in 2013. Of course, the main attraction is the 99% RTP but the simplicity of the game is also a huge draw for players who prefer a less complicated approach to online slots.
However, there’s more to this game than initially meets the eye. With each payout, you have the option to collect your winnings or use the funds to enable the Supermeter mode, whereby choosing to do so not only offers increased potential rewards, but also a chance of winning a randomly awarded progressive jackpot!
Another addition to NetEnt’s classic slot portfolio, Jackpot 6000 shares similarities with Mega Joker but mixes up the gameplay by offering additional bonus features. This slot is played on a traditional 3×3 layout with 5 paylines, so it’s easy to get to grips with, and each win you earn presents you with several choices.
First of all, each time you win, you can choose to collect your winnings or gamble. Simply predict heads or tails and if you pick correctly you’ll instantly double your winnings. Additionally, you have the option of playing with the Supermeter, which can potentially boost your overall prize pot to even greater heights.
Based on one of Relax Gaming’s most popular slots to date, Money Cart 2 Bonus Reels is a reimagination of modern slot gameplay that takes you straight to the heart of the action. Here, you’ll find no standard paytable. Instead, only one symbol is present, the Bonus symbol, and each time you hit spin the reels will either reveal a blank position or a Bonus symbol – it couldn’t be more straightforward and there’s a 5,000x maximum payout up for grabs.
Whenever 3 of these symbols land, you’ll trigger the Money Cart Respin feature with 3 free spins, where all sorts of cash prizes, special modifiers and characters await – land any symbol during this feature and your spins reset to 3.
Powered by Yggdrasil, Wild Joker Stacks is a high RTP slot that comes with a staggering payout potential worth up to 28,200x your stake. It has all the look and feel of a classic release, but what lies beneath is a hybrid game powered by a host of modern features and mechanics.
Features include Infinity Reels, an Infinity Bonus, Jackpot Respins and free spins, so there’s more than enough to keep even the most demanding player engaged. Yet, you have even greater control of the gameplay thanks to the inclusion of Row Power and Wild Joker Bet options, which increase the number of rows available and the value of the wild multipliers, respectively, when active.
One of several fairytale-themed slots developed by Quickspin, Big Bad Wolf remains ever-popular thanks to its high-quality design, interesting features and, of course, a high RTP rate. With a familiar 5-reel, 3-row and 25 payline set up, you needn’t worry about confusing mechanics as you go in search of a maximum payout worth 1,268x your stake.
The Swooping Reels and Pigs Turn Wild features can help you rack up the wins during the base game. Yet, even more awaits lucky players who gain entry into the free spins bonus as this unlocks the Blowing Down The House feature, which can net you extra spins and increased multipliers that apply to all subsequent wins.
Another NetEnt slot to make our list of high RTP slots is Jack Hammer 2, a sequel that puts players on familiar ground thanks to the 5×3 reel layout, yet mixes things up by boasting an incredible 99 paylines.
It’s a comic book-style slot that follows the adventures of crime-fighting hero Jack Hammer, and there’s plenty to uncover. With plenty of Wilds available to improve your chances of winning, a Sticky Wins bonus that can keep the wins rolling in and a free spins feature that doubles all payouts, there are numerous other reasons to check out this slot, aside from its player-friendly RTP rate.
Cross Miami Vice with Lethal Weapon, add in a bunch of cool bonus features and top it off with adjustable betting mechanics that improve the overall RTP and the result is NetEnt’s Hotline online slot.
Hotline is a 5-reel, 3-row slot that comes with 30 paylines and a maximum payout potential worth up to 2,800x your stake. Feature-wise, there’s plenty on offer, with expanding wilds, re-spins and free spins, plus a multi-level bonus bet feature that vastly improves your chances of triggering re-spins for even larger wins.
It isn’t often that you see a Megaways slot on a list of high RTP slots, but Pragmatic Play’s Big Bass Bonanza Megaways is a worthy addition due to its 96.70% RTP. This fishing-themed release plays out across a dynamic reel structure that offers up to 46,656 ways to win and a maximum win worth up to 4,000x your stake.
As for the available bonuses and features, consecutive payouts are possible thanks to the Tumble mechanic during the base game, but the key attraction is undoubtedly the free spins bonus. By triggering this feature, you’ll unlock the ability to reel in additional cash prizes via Money Symbols and also be able to upgrade the win multiplier, up to 10x, by retriggering the bonus.
Book of Kingdoms is an adventure-themed slot from top casino game developer, Pragmatic Play. It shares many similarities with other titles found in the ‘Book of’ slot genre, making it a straightforward game to understand.
That being said, 2 key factors help elevate Book of Kingdoms to an entirely new level. First of all, it has a great RTP, which you can’t often say about comparable releases. Secondly, it has a phenomenal maximum win potential, which sits at a mouth-watering 20,000x your stake. Elsewhere, you’ll encounter 2 intriguing bonus games that can deliver fixed jackpot prizes and free spins with expanding symbols.
Jackpot Slots RTP
Jackpot slots differ slightly from regular slots because a portion of the RTP is reserved for the awarding of their jackpot prizes. That’s why it’s often the case that the advertised RTP rates are typically lower than online slots with no jackpot.
In order to offer a progressive jackpot, a game must collect a portion of each wager to build a prize pool. Each time you hit the spin button, the majority of the stake goes towards the regular prize pot, whilst a small percentage is held back for the jackpot pool.
Land-Based Vs Online Slots RTP
Land-based slots can be set to return anything between 70% – 90%, with very few ever exceeding 92%, so online casino games often offer a significantly higher RTP rate.
Online slots that offer less than 94% are usually considered low-RTP titles, as many modern releases are set at around the 95% – 96% mark. Therefore, if you’re looking for the highest RTP slots, we strongly recommend that you choose to play online, rather than visiting your local brick-and-mortar casino. You’ll have many more options at your disposal and you’ll be getting a better bang for your buck
Frequently Asked Questions
We suggest that you read our answers to some frequently asked questions below to help you get a full understanding of slots with high RTP.
As our page has shown, no provider has a complete monopoly when it comes to high RTP slots. However, some of the big-name brands regularly produce such games, with NetEnt probably the most prolific in this respect.
No, not at all. RTP is simply an indicator of how likely you to see a return on your stake. However, it is theoretical, so should not be taken literally and instead we recommend that you simply use it as one of many tools to consider before choosing a title.
This is the numerical advantage that the ‘house’ or casino has over players. It is usually expressed as a percentage and varies from game type to game type.
RTP is calculated over a huge number of spins by looking at how often the slot pays out to players versus how much money is gambled. A higher RTP percentage is better, but it is still only an indicator and does not guarantee anything.
As with anything, this comes down to choice and what you are looking to get out of the game. Lower RTP games can often have other features that pay out large amounts – progressive jackpots, for example.
On our page we have outlined 10 of the best slots that have high RTP – with some having a truly memorable percentage up to 99%. Book of 99 is probably the most famous example of this, with the game having one of the highest RTP percentages ever made in a slot.
These phrases mean two separate things. RTP gives guidance on your odds of winning at a particular slot, while volatility refers to gameplay; high volatility slots pay out larger amounts infrequently, with lower volatility ones doing the opposite. Slots can have any combination of high/low volatility and RTP.