Looking for the highest RTP slots in Ireland?
When looking for the best slot, the most important number to examine is the return on investment (RTP). The greater the RTP of the slot, the more cash you will receive over time. However, like with other statistics, it is not so simple. There are several elements to consider, and a greater rating may not always be preferable. It depends on the game you want to play. This article will help you understand all there is to learn about one of the most important figures in iGaming. Also, you will learn how to apply the most incredible RTP knowledge to maximise your gameplay.
These are online casinos with great slots with high RTP (return to player)!



18+ | Terms & conditions apply. | Rocket Casino.
- ✓ 50 Bonus Spins
- ✓ Aztec Magic Deluxe
- ✓ On your first deposit

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- ✓ Fruit Machine x25
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18+ | Terms & conditions apply. | Slotbox Casino.
- ✓ Book of Dead
- ✓ 100% up to €100
- ✓ 100 Bonus Spins

18+ | Terms & conditions apply. | Vulkan Vegas Casino.
- ✓ Book of Dead
- ✓ 120% up to €300
- ✓ 70 Bonus Spins

18+ | Terms & conditions apply. | Trickz Casino.
- ✓ 110% Bonus
- ✓ 100 Bonus Spins
- ✓ Tome of Madness

18+ | Terms & conditions apply.
- ✓ 100% up to €500
- ✓ Fruit Zen
- ✓ 50 Bonus Spins

18+ | Terms & conditions apply.
- ✓ Fruit Machine x25
- ✓ Code: 20FSS
- ✓ 200% up to €1000

18+ | Terms & conditions apply.
- ✓ Up to €50
- ✓ Wagering x25
- ✓ Up to 200 Bonus Spins

18+ | Terms & conditions apply.
- ✓ 100 Bonus Spins
- ✓ Aztec Magic Deluxe
- ✓ Mobile App available

18+ | Terms & conditions apply.
- ✓ Aztec Magic Megaways
- ✓ Wild Cash
- ✓ €500 Bonus & 100 Spins

18+ | Terms & conditions apply. | BCasino.
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18+ | Terms & conditions apply.
- ✓ Up to €1,250
- ✓ 150% Sports Bonus
- ✓ Live Casino

18+ | Terms & conditions apply. | 1Bet Casino.
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- ✓ Sportsbook
- ✓ Mobile App available

18+ | Terms & conditions apply.
- ✓ 100% Bonus
- ✓ €1 Minimum Deposit
- ✓ Sportsbook

18+ | Terms & conditions apply. | Verde Casino.
- ✓ Book of Sirens
- ✓ Wagering x3
- ✓ 120% up to €300

18+ | Terms & conditions apply.
- ✓ 100% up to €100
- ✓ Wagering 25x
- ✓ €10 Min Deposit

18+ | Terms & conditions apply. | ExciteWin Casino.
- ✓ 100% Bonus
- ✓ 200 Bonus Spins
- ✓ Weekly Cashback 15%

18+ | Terms & conditions apply. | Doggo Casino.
- ✓ Book of Dead
- ✓ 100% up to €1000
- ✓ 200 Bonus Spins

18+ | Terms & conditions apply. | Mr Fortune Casino.
- ✓ €700 Casino Bonus
- ✓ 50 Bonus Spins
- ✓ Fruit Zen

18+ | Terms & conditions apply.
- ✓ 100% Bonus
- ✓ 120 Bonus Spins
- ✓ Elvis Frog in Vegas

18+ | Terms & conditions apply. | Wolfy Casino.
- ✓ Tower of Fortuna
- ✓ Koodi: ZAM20
- ✓ Wager-free

18+ | Terms & conditions apply. | Gxmble Casino.
- ✓ Up to €500
- ✓ On first deposit
- ✓ Wagering Requirement: 5x

18+ | Terms & conditions apply. | Arcanebet Casino.
- ✓ Book of Dead
- ✓ €200 Casino Bonus
- ✓ 50 Extra Spins

18+ | Terms & conditions apply. | Winstler Casino.
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- ✓ On first deposit
- ✓ Sports Betting

18+ | Terms & conditions apply.
- ✓ 100% Bonus
- ✓ 100 Bonus Spins
- ✓ Book of Dead

18+ | Terms & conditions apply. | MegaRush Casino.
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- ✓ Book of Dead
- ✓ Min. deposit €10

18+ | Terms & conditions apply. | Club Riches Casino.
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- ✓ 100% up to €1000
- ✓ 100 Bonus Spins

18+ | Terms & conditions apply. | Winnerz Casino.
- ✓ 100 Bonus Spins
- ✓ Book of Dead
- ✓ Wager x15

18+ | Terms & conditions apply. | Seven Casino.
- ✓ 1st Bonus
- ✓ Wagering Requirement: 10x
- ✓ Sports Betting

18+ | Terms & conditions apply.
- ✓ Dig Dig Digger
- ✓ Code: ZAMSINO
- ✓ €100 Bonus & 100 Spins

18+ | Terms & conditions apply.
- ✓ Up to €125
- ✓ 25 Bonus Spins
- ✓ Choose your package!

18+ | Terms & conditions apply. | Maneki Casino.
- ✓ Big Bass Keeping it Reel
- ✓ 100% up to €111
- ✓ 33 Extra Spins

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- ✓ 100 Bonus Spins
- ✓ Elvis Frog in Vegas
- ✓ Up to 1k Cashback

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- ✓ 155% Crypto Bonus
- ✓ 10% loyalty bonus
- ✓ Sports betting

18+ | Terms & conditions apply. | RANT Casino.
- ✓ 100% Match Bonus
- ✓ On First Deposit
- ✓ Weekly Cashback

18+ | Terms & conditions apply. | Stelario Casino.
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- ✓ Code: ZAMSINO
- ✓ 125% up to €300

18+ | Terms & conditions apply. | Ice Casino.
- ✓ Book of Fallen
- ✓ 120% up to €300
- ✓ 120 Extra Spins

18+ | Terms & conditions apply. | Icebet Casino.
- ✓ Bastet and Cats
- ✓ Code: ZAMSINO
- ✓ 125% up to €300

18+ | Terms & conditions apply.
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18+ | Terms & conditions apply.
- ✓ Majestic King
- ✓ Code: ZAMSINO20
- ✓ 200% up to €500

18+ | Terms & conditions apply.
- ✓ $300 Casino
- ✓ On First Deposit
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18+ | Terms & conditions apply. | Spinsbro Casino.
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- ✓ 115% up to €420
- ✓ 100 Spins: Sugar Rush

18+ | Terms & conditions apply. | CosmicSlot Casino.
- ✓ Across the Universe
- ✓ 100% up to €500
- ✓ 100 Bonus Spins

18+ | Terms & conditions apply. | CasiGo Casino.
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- ✓ Joker’s Jewels
- ✓ Daily new bonuses

18+ | Terms & conditions apply. | Lucky Heroes Casino.
- ✓ 100% Bonus
- ✓ 200 Bonus Spins
- ✓ 15% Weekly Cashback

18+ | Terms & conditions apply. | Richardd Casino.
- ✓ 100% Bonus
- ✓ 100 Bonus Spins
- ✓ Elvis Frog in Vegas

18+ | Terms & conditions apply. | Voodoo Casino.
- ✓ 100 Bonus Spins
- ✓ Hit The Route
- ✓ Lucky Lady Moon

18+ | Terms & conditions apply. | WinningDays Casino.
- ✓ On your first deposit
- ✓ Book of Cats
- ✓ Bitcoin accepted

18+ | Terms & conditions apply. | Captain Spins Casino.
- ✓ 260 free spins
- ✓ Skrill
- ✓ 100% bonus

18+ | Terms & conditions apply. | LV Bet Casino.
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- ✓ Code: HOPDROP
- ✓ 200% Casino Bonus

18+ | Terms & conditions apply. | Casino Friday.
- ✓ 100% Bonus
- ✓ 200 Bonus-Spins
- ✓ Non-Sticky

18+ | Terms & conditions apply. | StreamBetz Casino.
- ✓ €10 Min. Deposit
- ✓ 100 Bonus Spins
- ✓ Book of Fallen

18+ | Terms & conditions apply. | JackpotCity Casino.
- ✓ 100% Match Bonus
- ✓ €10 Min. Deposit
- ✓ Casino Mobile App

18+ | Terms & conditions apply. | WildTornado Casino.
- ✓ 100 Free Spins
- ✓ WILD100
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18+ | Terms & conditions apply.
- ✓ 100 Bonus Spins
- ✓ Elvis Frog in Vegas
- ✓ Min.dep: €20

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- ✓ On first deposit
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- ✓ Irish Casino
- ✓ Live Casino

18+ | Terms & conditions apply.
- ✓ 200 Bonus Spins
- ✓ 100% Bonus
- ✓ Live Casino

18+ | Terms & conditions apply.
- ✓ 20 Free Spins
- ✓ Non-Sticky
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18+ | Terms & conditions apply.
- ✓ On First Deposit
- ✓ Book of Dead
- ✓ HD Live Casino games

18+ | Terms & conditions apply. | Winhalla Casino.
- ✓ Book of Vikings
- ✓ Code: 20FREESPINS
- ✓ €200 Casino Bonus

18+ | Terms & conditions apply.
- ✓ Book of Fallen
- ✓ Code: 20FREESPINS
- ✓ €400 Casino Bonus

18+ | Terms & conditions apply. | Jonny Jackpot Casino.
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- ✓ Agent Jane Blonde Returns
- ✓ Fast Withdrawals

18+ | Terms & conditions apply.
- ✓ Valley of the Muses
- ✓ Code: 50FREESPINS
- ✓ 400% up to €400

18+ | Terms & conditions apply.
- ✓ 100 Bonus spins
- ✓ Starburst
- ✓ Minimum Deposit €10

18+ | Terms & conditions apply. | LeoVegas Casino.
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- ✓ Wagering 25x
- ✓ Minimum Deposit €10

18+ | Terms & conditions apply.
- ✓ Up to €500
- ✓ 150 Free Spins
- ✓ Book of Dead

18+ | Terms & conditions apply. | OhMySpins Casino.
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- ✓ Cashback Offers
- ✓ 100% Bonus

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- ✓ Book of Dead
- ✓ On First Deposit
- ✓ €10 Min Deposit

18+ | Terms & conditions apply.
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- ✓ Starburst Xxxtreme
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18+ | Terms & conditions apply. | Vegas Lounge Casino.
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18+ | Terms & conditions apply.
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- ✓ JockerPro
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18+ | Terms & conditions apply. | Energy Casino.
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18+ | Terms & conditions apply. | Party Casino.
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Table of Contents
📌 What is RTP?
RTP is short for Return to Player. It is the number of wins divided by the total number placed on your bet. In principle, the closer you get to 100%, the more you will win back. The RTP is the payout ratio when playing games online. You'll frequently hear about the top paying slots. This applies to the slots that have the highest RTP percentage.
The RTP percentage is greater in traditional casinos. For example, games in Las Vegas have an RTP of around 75%, whereas internet casinos have an RTP of approximately 95%. On average, whether you bet $100 on the identical slot machine at a land-based casino or online, the change in return would be $20 (for a $100 bet).
Assume that a slot has an RTP of 98%. This implies that if you bet $100, you could potentially win $98 back. However, because this statistic depends on a vast number of generated spins, there may be bundles of spins that deviate significantly from the average. For example, because of the random nature of slots, you may spend $100 and earn back $10, or you might gamble $100 and win back $5,000.
📌 Highest RTP Slots
📌 Ugga Bugga from Playtech

Return to Player: 99.07%
Released in 2006, Ugga Bugga started an uproar in the gambling community because of its high RTP. This unusual online slot machine is unlike any other slot. It includes a more video poker-like mechanic. You must construct winning combos of symbols but have the option to keep a symbol space. Consequently. this space operates on all 10 lines.
When playing Ugga Bugga, there is just one bonus feature. When you initially press the spin button, just the bottom row of reels inside the left column is spun. You will then have the choice to hold certain symbols. Whatever symbols you keep on the first round of reels will stay on all 10 sets of reels. When you press the spin button again, all 10 sets of reels will play with the symbols you choose locked in place.
📌 Mega Joker from NetEnt

Return to Player: 99%
Released by NetEnt in 2011, Mega Joker from NetEnt is a 100% scam-free and secure slot game. In every way, the Mega Joker slot is a classic slot. It is a 33-pay line slot featuring famous fruit symbols. In addition, if you land 3 joker symbols, you will be awarded a random reward. Simply push the spin icon and hope for the best.
The Mega Joker slot may not have many additional features, but the ones available are gratifying. The Supermeter is at the top of the slot machine. Here, you may collect or wager the money you won in the main game. You get a whole fresh batch of intriguing prizes with a second slot.
Aside from the entertaining gamble selection, you could also win a sizable progressive jackpot. Each spin generates 3% to the jackpot, so keep an eye out for the jackpot.
📌 Rainbow Riches Pick ‘n' Mix from Barcrest

Return to Player: Up to 98%
Rainbow Riches Pick'n'Mix is a simple-to-play slot from Barcrest. It allows you to play with real money in three different ways. Aside from the many betting possibilities, Rainbow Riches Pick'n'Mix slot also offers as many special symbols as conventional ones.
Each round's lowest wager is 0.20 game credits, which entitles you to regular prizes and an RTP of 94%. However, if you set your stake from 1 credit to 500 credits, the RTP will rise to 98%. Finally, you may pay 10-25 game credits to play the Big Bet side game. This game offers boosted bonuses and a 98% RTP.
With real money payouts of up to 250,000 game credits per wager and a plethora of bonuses, this game may be interesting for players at the finest online casinos regardless of how they play.
📌 Ooh Aah Dracula from Barcrest

Return to Player: 99%
This slot has a little bizarre Dracula motif — as well as a slew of intriguing perks to go with it. This title takes Barcrest's intense gameplay and adds high-roller choices, free spins games, and a cemetery pick-me special round on top. The frantic soundtrack and illustration symbols combine to give this a fun take on the typically sombre Dracula theme.
It is available on mobile phones and tablets. It has a revolutionary free spins feature. You may collect your wins or gamble for fewer free spins with even more wild symbols. Players also have a Hi Roller option. This option unlocks additional bonus features and raises the RTP to an incredible 99%!
📌 Jackpot 6000 from NetEnt

RTP: 98.8%
Jackpot 6000 slots are available on all mobile and desktop devices. While employing the Best Strategy Indicator, standard play on this game is 96%. However, this jumps to a whopping 99% when playing the High Roller version. The average RTP payout ratio is 98%. Having stated that, the house edge ranges from 6% to 1%.
When you score a winning combination, you have the option of gambling your winnings or transferring them toward the Supermeter mode. If you want to wager your earnings, you have the option of doubling them or losing them all in a conventional 50/50 chance game.
📌 The Catfather from Pragmatic Play

RTP: 98.1%
The Catfather slot machine is a funny yet enjoyable game. The idea is as absurd as it gets. Yet, the features keep this game playable. The stacked wilds keep the regular game moving, and you won't have to wait long to activate the Free Spins bonus.
Aside from its bizarre storyline, the most surprising aspect of The Catfather is its staggering average RTP value of 98.1%. For additional reasons, the absence of a volatility rating, which is typically prominently shown in a Pragmatic Play slot, is also perplexing. One might hypothesise here.
📌 1429 Uncharted Seas from Thunderkick

Return to Player: 98.5%
Thunderkick's 1429 Uncharted Seas online slot game is a lot of fun. This slot's Return to Player is a highly enticing 98.50%, which distinguishes it from many other slots of its sort. Players with keen eyes will also notice the game's low volatility. When accompanied by high RTP, this results in fewer winnings but more profitable ones once they come.
Anyone who loves high seas and boats will like this online slot machine inspired by original maritime trips stories. 1429 Uncharted Seas seems like an old-fashioned marine map. Thunderkick does not provide a progressive jackpot for 1429 Uncharted Seas. The highest payout on this slot is 67,000x.
📌 Jokerizer from Yggdrasil

Return to Player: 98%
Jokerizer is another visually attractive and graphically sophisticated 3D slot from Yggdrasil Gaming. The game has 5 reels and 10 pay lines and is one of the original slot games from Yggdrasil Gaming. The same firm brought us the incredible Robotnik slots game.
The game also includes several bonuses, and the main symbol in this game is the Joker. Some features you'll like are Jokerizer mode, surprise wins, and monetary rewards.
Jokerizer is a high volatility slot with an RTP of 98%. Players can spend a long time without winning, but high volatility slots are more significant.
📌 Blood Suckers from NetEnt

Return to Player: 98%
Blood Suckers has grown in popularity since NetEnt originally released it in November 2013. The spine-chilling storyline, terrifying graphics, and great added features are more than enough to entice you.
The famed 98% RTP and low volatility are both appealing characteristics, and thrusting a stake into vampires in the free game is both entertaining and lucrative. In the free spins feature, you may win up to 900 x your bet.
One of the Blood Suckers slot attractions is the bonus game. This is triggered by landing at least three gory stakes and hammering special symbols on the reels.
📌 Starmania by NextGen

Return to Player: 97.87%
The theme of the Starmania slot machine is outer space. The visuals and graphics are a little rudimentary for a game that was released in 2015. However, I believe this was NextGen Gaming's goal. On the reels, you can observe beautifully coloured stars set throughout the universe. It includes an ambient soundtrack that may be used in a spa.
The red and yellow star is the most lucrative of the seven distinct stars on the reels. Combinations of 2, 3, 4, or 5 will pay 0.4, 2.5, 10, or 50 times your total bet.
📌 White Rabbit Megaways from Big Time Gaming

Return to Player: 97.77%
White Rabbit Megaways game from Big Time Gaming is a gorgeously crafted game loosely inspired by Lewis Carroll's “Alice” novels. When you trigger the free spins round, the reels can extend to provide 248,832 Megaways. Additional wilds multipliers that may double rewards are also available, as are longer reels and a Drop feature.
It's among the most prominent Megaways titles. Moreover, it's playable on all platforms from 10p each spin. It has an RTP of up to 97.24% and a maximum win of 17,420 times stake per spin.
📌 Esqueleto Explosivo from Thunderkick

Return to Player: 97.60%
Thunderkick released Esqueleto Explosivo in 2014. It has a Day of the Dead theme, so expect bright colours and lively mariachi music as you spin the reels to align up a wide variety of painted skulls.
When you produce a winning skull combination, the symbols involved erupting to make space for new ones. This implies that a single spin can result in several wins. Every win or appearance of an exploding wild can double an ongoing multiplier amount that begins at 1x and may go up to 32x.
📌 Birds on a Wire from Thunderkick

Return to Player: 97.2%
Birds on a Wire seems to be a 5-reel, 17-payline slot game powered by Thunderkick. It has a birds theme with an array of features. Besides, you can play it for as little as 10p a spin. The primary concept is dropping symbols, which allow you to win with a multiplier of up to 5x on each spin.
The multiplier from descending symbols may reach a stunning 20x in the free spins bonus. Consequently, you can win up to 34 free spins.
📌 Money Train 2 from Relax Gaming

Return to Player: 96.40 to 98.00%
Money Train 2 is a highly evocative Wild West slot by Relax Gaming. Your task is to stop a train loaded with wealth. The game features five reels, and the higher-value icons depict four outlaw characters, with a skull acting as a wild sign.
If you're a lucky bandit, you may win up to 50,000 x your stake.
The RTP in this slot is 96.4% on average. However, if you use the Buy Feature choice and pay to activate the Money Cart Extra Road, the RTP jumps to 98%. If you're simply interested in Money Train 2 for the special round, consider Money Cart 2, where it's a lot more fundamental to the game.
📌 Rainbow Riches Cluster Magic from Barcrest

Return to Player: 96.34%.
This grid-based game challenges you to collect clusters of five or more adjacent symbols to earn prizes. The symbols are a toadstool, a leprechaun, a 4-leaf clover, and a Wild pot of gold under a rainbow.
At the start of the Free Spins game, you'll spin a bonus wheel to select whether it will be played with Wild Rain, Infinity Wilds, or Persisting Wilds. Indeed, keep your fingers crossed for Irish luck as you compete for a top reward of 12,500 x your stake.
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Erik King
Editor in Chief - Zamsino.com
I always loved gambling and probably always will, spending my time reviewing gambling sites to help people save time.
Last updated 24/08/23 by Erik King