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Table of contents:

Why Trust Casino Treasure with information on Slots Ireland?

Welcome to our Slots Guide at Casino Treasure, your ultimate destination for Ireland’s best online gaming sites! We pride ourselves on uncovering the top online casinos and bonuses explicitly tailored for Irish players.

But we’re more than just another gaming site. Consider us a friend who will help you find the best bonuses and slots in town!

When recommending online casinos, we don’t play games with the truth. There’s no hidden agenda here, but present hard facts that help you make informed decisions.

If you’re ready to take your slot gaming to new heights and maximize your wins, you’re at the right place! Get the low-down on slots and how to win bigger payouts!

What are Slots?

Slots are super fun online casino games with the best graphics and soundtracks. They provide unbelievable return rates, are themed, and offer cutting-edge features to elevate the fun and excitement.

There is basic terminology associated with slot games, and we list a few:

Reels – Reels will spin when you press Play, and if you match the symbols, you win
Symbols – Icons that appear on the reels of online slot machines
Paylines – Where your symbols spin and form winning combinations
Paytables – Check the paytable before you start so you know what payouts you can get
Free Spins – Triggered on slot games, and when in the right combination, will pay
Bonus Rounds – Besides the main game, bonus rounds pay great wins!
Autoplay – When you don’t want to spin the reels, the machine will play automatically
Minimum Bet – Smallest bet you can make with one spin, i.e., €0.10 per spin
Maximum Bet – The biggest bet you can make with one spin can reach €100,000 or more

 What are Slots?

Why You Should Play Online Slots?

Here’s why you should be playing slots at your favourite online casinos in Ireland:

Convenience Play from PC or on the go with tablet and mobile
Variety of Games Many themes and gameplay mechanics
Accessibility Slots are available 24/7 with no waiting around
Bonuses and Promotions Deposit from €10, get double your money or more
Flexibility of betting limits Players can bet low or as a high roller
Privacy and anonymity No social scrutiny, play Slots in peace
Innovative features Cutting-edge technology to enhance gameplay.
Social Interaction Chat functions and community forums to interact

How does Casino Treasure rank the best online slot sites?

Like most people, we enjoy slots! However, before we recommend any online casino, these are some of the things we assess before we rank the best online slots games:

Step 1 – Checking Licence and KYC of Slots Online Ireland.

The first and most important step is to separate online casinos with legitimate licenses from shady ones. We do the work so that you can choose a new online casino site and slot game, and you’ll have up-to-date information to refer to in our casino reviews.

Step 2 – Bonuses, Free Spins, and Promotions of Slots Ireland Casinos.

Online casinos dish out bonuses and promotions daily, from the typical First Deposit Bonus to Free Spins. The welcome bonus package will keep you flush with bonus cash. Our casino reviews detail the bonus and explain how to meet the T&Cs and wagering requirements.

Step 3 – Slots, Games, and Software of the Slot Sites.

Arguably, one of the most important security aspects of a casino is the games on offer. We’ll go through all the different types of real-money gambling games you will find and who the software provider is, and then include this information in our casino reviews.

Step 4 – Banking and Payments of Real Money Slot Sites.

Licensed Irish casinos are secure when it comes to banking and payments. Before you sign up, it’s helpful to know what casino payment methods are available. You will also want to know the minimum and maximum deposits and withdrawal times when claiming Free Spins for top slots.

What types of Slots are there?

Online slots keep growing, and online casino players have more slots to choose from than ever before. Classic and modern slots can be divided into several categories:

Classic Slots

Original slot games from yesteryear have traditional game mechanics that still excite players daily. Classic slots were initially found on casino floors at land-based casinos. They have traditional themes and are reminiscent of fruit machines.

Fruit Machines Slots.

Mimicking the lot found at bars and arcades across Ireland, Fruit Machines feature three reels and a payline in the middle, which are packed with fruit, bells, and a number 7 symbol.

Best examples include Fruit Shop, Booming 7 and Fruit Fiesta.

Branded Slots

Like video slots, branded slots are themed on famous movies, TV shows, musicians, actors, and other pop culture icons.

The best-branded slots in 2024 are Vikings and Guns N’ Roses.

Video Slots

Multi reels and thrilling game features like Wilds, Scatters, bonus rounds and Free Spins. Video slots are fitted with eye-catching bonus rounds, game features and excellent graphics.

3D Slots

These slots are next-level cutting-edge, with games that feel like they’re jumping out of the screen and 3D cutaway scenes that are part of bonus rounds.

The best 3D slots you can try include Goonzo’eTurning Totems, Gonzo’s Quest and Jungle Jim El Dorado.

Live Slot Games

A recent phenomenon is that live slots are played at live casinos. A human dealer spins the slot game, and you can win huge payouts this way.

Some top Live Slots are Playtech’s Safari Riches and Gonzo’s Quest Live from NetEnt.

Progressive Jackpot Slots

These slot games allow players to win massive six and seven-figure prizes. Progressives offer a prize that grows each time a player feeds the slot machine until the prize is triggered and won by a lucky player. Progressive prizes can reach into the millions.

The best Progressive Jackpots to try are Microgaming’s MegaMoolah and NetEnt’s MegaFortune.

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Are slot sites safe to play in Ireland?

Yes! Slots are safe to play in Ireland, as per the Betting Act of 1931 and the Gaming and Lotteries Act of 1956, which regulate and license gambling activities in Ireland.

This ensures you can play legal slots for big money wins at online casinos in Ireland.

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How do you find legitimate slot sites?

Head over to our pages at Casino Treasure, find an Irish casino that grabs your attention, and then choose your perfect casino sign-up bonus and Free Spins offer.

Our casino experts have reviewed numerous online slots accessible to Irish players, so once you find a legitimate slot site and use a bonus, pay special attention to the following points:

Wagering Requirements – When playing slots with a casino bonus, remember to meet the wagering requirements by replaying your bonus to a specified amount before withdrawing winnings from the bonus.

Validity Period – Read through the T&Cs and find out how long you have to wager the bonus. Remember that you could lose your bonus if you don’t meet the validity period.

Game Contribution – Different games contribute differently, but slots and some table games can normally be played to meet the wagering requirements. For instance, slots might contribute 100%, while table games could contribute only 10%.

Excluded Payment Methods– Always check that you can claim a casino welcome bonus with eWallets like Neteller and Skrill, as they are often excluded from bonuses.

How to Pick the Best Slot to Win Real Money Online?

Picking the best slots to win real money will require some thought. Winning real money slots involves understanding the game mechanics and the RTP (Return to Player) Percentage, which will help you choose the highest-paying slots.

To ensure you’ve picked a slot game perfectly suitable for your gambling needs, read our casino reviews and familiarise yourself with the rules and payables. This way, when you play for real money, you will already know what you need to do to take home big wins.

How do We Choose the Best Online Slots Casino Sites in Ireland?

Choosing a top-rated online casino requires time and thought, and lucky for you, we do that every day. Here’s how we sort through every online casino that comes our way:

Casino bonuses, VIP clubs and loyalty offers of Casino Slot Sites

Online casinos offer many bonuses, but before you decide to grab one, read our reviews as we examine the casino’s bonuses and promotions and the VIP and Loyalty Programme in detail. We then include this valuable information in a comprehensive casino review at Casino Treasure, so you will always start with casino bonuses prepared.

Range of games on offer for the Slot Sites.

Before signing up, visit the online casino games section to see what types of games are available. You can also read our casino reviews, outlining what games you can play with or without bonuses.

Fast Payouts and Payment Options of Real Money Slots.

We check the minimum and maximum withdrawal and deposit limits and the range of payment providers so that you can choose an ideal payment method beforehand.

Customer service for the Casino Slot Sites.

Of course, every online casino player will need to chat with support at some time. Our casinos offer speedy and efficient support, with 24/7 Live Chat and email.

User experience of the Slots.

An easy-to-use interface and casino site are important elements for your online entertainment, so we choose casinos that focus on the best player experience, not just game variety. The casino is optimized for devices other than desktop PCs, meaning it should look good on any size screen. Playing on iOS and Android devices without hurting your gameplay is essential.

Security and licensing of the Slots.

It’s important that your casino account, which holds your payment and personal data, is secure. That’s why registering at a casino site that does its due diligence regarding safety should be a priority.

What are Free Spins in Slots?

Free Spins can be awarded to players in the welcome bonus package as a free reward for joining, as a no-deposit bonus, and in many regular promotions.

Free Spins in slots are bonus rounds triggered by the game when you land at least three Scatters, but each slot game has its unique mechanics.

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What are Demo Games in Slots?

Demo slots are slots that don’t require you to deposit any real money to play, and they don’t pay out real-money wins either. Demo games are a fun-filled pastime that offers all the same thrills of real money slots but with virtual credit.

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Free Spins vs Demo Games

Free Spins on a real money slot are bonus rounds triggered when you land the right combination of symbols on the screen, while demo games are free slot games you can play for fun and learn the ropes before playing it for real money.

Feature Free Spins Demo Games
Availability Online casino bonuses/promos. Available for practice on platforms.
Cost Free Free
Winnings Real money potential No real money winnings
Purpose Win without wagering own money Practice without risk
Access Specific games at casinos Wide range of games available
Account Req. Account often required Account may not be needed
Restrictions Wagering requirements apply No real stakes, no winnings
Functionality Full game experience Same mechanics, no real stakes

What are Progressive Slots?

Have you ever seen those TV adverts or on social media when a player stands beside a big cheque or a slot machine, euphorically jumping up and down? That’s a progressive jackpot winner.

Progressive jackpots are unlike classic slots because their jackpot prize grows as players make bets. Once the jackpot reaches €1,000,000,00, a lucky player will soon take home the prize.

There are two types of progressive jackpots online:

Standalone progressive jackpot slots have a jackpot meter that grows each time players place bets on that same jackpot slot machine.

Network progressive jackpots accumulate money across different jackpot slots to feed toward an extensive jackpot network., and pay the highest prizes possible.

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Online Slot Progressive Jackpot Amounts

Jackpot Slot Software Prize Notes
MegaMoolah Microgaming €18,915,872.81 The player chose to remain anonymous.
Mega Fortune NetEnt €17,860,868.00 Finnish player who won with a 25-cent bet.
Mega Moolah Microgaming €20,062,600.00 British soldier Jon Heywood
MegaFortune Dreams NetEnt €4,633,971.19 Swedish player. Hit the jackpot on the mobile.
MegaMoolah Microgaming €13,328,028.16 Marcus Goodwin from the UK
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Most Famous Online Slots in Ireland - Best Slots to Play Online

While Ireland’s most famous online slots aren’t typically associated with high-stakes gaming, they cater to everyone, from low bettors to high rollers.

Online slots generally need bets from €0.10 to €10,000 per spin.

Online slots offer bigger wins compared to Irish land-based casinos. One of the most famous online slots is Microgaming’s MegaMoolah, a progressive jackpot that can be played from €0.25 to €6.25 a spin. It’s been known to pay thousands and millions regularly, so MegaMoolah’s betting ranges offer exceptional online gambling value.

Online Slot Themes

Online slots are themed about everything, from ancient civilizations to futuristic worlds, fairies, dragons, and Hollywood blockbusters. One minute, you swim in shark-infested waters; the next, you’re in ancient Egypt or hanging around with extraterrestrials.

With rich narratives and vibrant visuals, whether you’re more of a classic slots fruit machine sort of person or prefer action adventure, slot themes make sure that everyone can get involved. Slots captivate us with their personality and colossal payout potential, so the next time you’re wondering which new slot game to try, here are some suggestions.

 Online Slot Themes

Irish-Themed Online Slots

Irish-themed online slots are the luckiest of them all. Who can resist tiny leprechauns, four-leaf clovers, pots of gold, and whimsical rainbows? Here are some slots that will have you tapping to the tune of bonus rounds, Free Spins, pick-and-click games, and big wins.

Movie Slot Game Software Provider RTP%
Rainbow Riches Scientific Games 95%
Irish Luck Playtech 95%
Leprechaun Goes to Hell Play’n GO 96.54%
Lucky Leprechaun Microgaming 95.50%
Irish Eyes NextGen Gaming 95.13%
Finn and the Swirly Spin NetEnt 96.62%
Luck O’ The Irish Fortune Spins Blueprint Gaming 95.05%
Clover Rollover Eyecon 93.01%

Movie Slots

Excitement at its finest: the most riveting movies in a slot machine. With game features designed around the characters, bonus rounds, Free Spins, and innovative game mechanics, movie slots thrill online casino gamers daily. Here are a few movie slots you can try for mega-win potential!

Movie Slot Game Software Provider RTP%
Jurassic Park Microgaming 96.67%
The Dark Knight Playtech 94.00%
Terminator 2: Judgement Day Microgaming 96.62%
Gladiator Playtech 94.10%
The Matrix Playtech 95.14%
Aliens NetEnt 96.40%
Ghostbusters NetEnt 94% to 96%
King Kong NextGen Gaming 95.14%

TV Slots

Who hasn’t sat glued in front of the TV, gripped by a new series or TV show? Slots take us to our favourite TV productions with iconic symbols and original soundtracks. Here are the favorite all-time TV slots as voted by Irish online casino players:

Movie Slot Game Software Provider RTP%
Game of Thrones Microgaming 96%
Breaking Bad Aristocrat 91.5% to 95.5%
The Walking Dead WMS Gaming 96%
Friends IGT 92.5% to 96.05%
Family Guy Playtech 94.5%
The Flintstones NetEnt 96.8%
The X-Files NetEnt 95%
South Park: Reel Chaos Playtech 95%

Mythology Slots

Inspired by the wonder and magic of ancient myths and legends, mythology slots feature gods, goddesses, mythical creatures, and legendary heroes as symbols on the reels. The 8 most popular mythology slots at Irish casinos include:

Movie Slot Game Software Provider RTP%
Age of the Gods series Playtech 95%
Book of Ra Deluxe Novomatic 95.01%
Thunderstruck Microgaming 96.65%
Rise of Olympus Play’n GO 96.50%
Gonzo’s Quest NetEnt 95.79%
Medusa II NextGen Gaming 95.97%
Cleopatra IGT 95.02% to 96.5%
Zeus WMS Gaming 95.79%

Ancient Egypt Slots

One of the most popular slots, these slot games are inspired by ancient Egypt’s pyramids, hieroglyphs, and Egyptian gods and goddesses. Try one of the most popular ancient Egypt slot machines at online casinos in Ireland:

Movie Slot Game Software Provider RTP%
Book of Dead Play’n GO 96.21%
Legacy of Dead Play’n GO 96.58%
Rise of Ra EGT Interactive 95.97%
Temple of Tut Just For The Win 96.5%
Queen of Gold Pragmatic Play 96.5%
Pharaohs Fortune IGT 95.08% to 96.53%
Cleopatra IGT 95.02% to 96.5%
Eye of Horus Blueprint Gaming 96.31%

Fruit Slots

Fruit machines are classic slot games with cherries, lemons, oranges, grapes, watermelons, and plums as symbols. With simple gameplay mechanics and colorful visuals, fruit slots remain a nostalgic slot category among players worldwide.

Achieving the maximum win of 5,000 times the initial bet is possible within the base game itself, not solely reliant on triggering the bonus round. This possibility is primarily attributed to the inclusion of multipliers that escalate with each consecutive win, potentially culminating in an impressive 256x multiplier.

Here are eight Fruity slots you’ll want to play again and again:

Movie Slot Game Software Provider RTP%
Starburst NetEnt 96.09%
Fruit Shop NetEnt 96.71%
Mega Joker NetEnt 99%
Fruit Warp Thunderkick 97%
Mystery Joker Play’n GO 96.98%
Fruit Zen Betsoft 95.96%
Reel Rush NetEnt 96.96%
Twin Spin NetEnt 96.55%

Pirate Slots

Pirate-themed slots are packed with swashbuckling adventures, treasure chests, pirate ships, and parrots. With thrilling gameplay and exciting bonus features, these 8 slots capture the essence of life on the high seas.

Movie Slot Game Software Provider RTP%
Pirates’ Plenty: The Sunken Treasure Red Tiger Gaming 96.12%
Ghost Pirates NetEnt 96.88%
Boom Pirates Microgaming 96.19%
Jolly Roger Play’n GO 96.20%
Blackbeard’s Quest Tom Horn Gaming 96%
Hook’s Heroes NetEnt 96.82%
Pirate’s Charm Quickspin 96.49%
Pirate’s Charm Quickspin 96.49%
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Other Top Online Slots

In no particular order, here are some of the best-ranked slots at Irish Casinos

Nero’s Fortune

Powered by Quickspin, explore ancient Rome with a stunning video slot game with 3D graphics and a 96.24% RTP. Dive your way through Burning Arrows and Flames of Nero Free Spins as you try your luck to win the maximum prize of 8,100x the stake.

Immortal Romance

Developed by Microgaming, Immortal Romance is a vampire-themed slot game with a haunting soundtrack, amazing gameplay and a 96.86% RTP. Enter the Chamber of Spins feature and get four different bonus rounds, with a potential win of 12,000x your wager.

Book of Dead

Play’n GO’s ancient Egypt-themed slot game is very popular at online casinos globally. It features a 96.21% RTP and special expanding symbols that can win you up to 5,000x your stake.


Pragmatic Play’s cosmic slot game features vibrant graphics and engaging space-themed sounds. With a 96.50% RTP, amp up your wins in the Bonus Space Adventure round and reach for the stars with the maximum win potential of 4,000 times your stake.

WOW Pot Series

Microgaming does it again with a thrilling progressive jackpot series across various themes and designs. Players can win prizes up to €10 Million, which makes this slot game one to try.

Gonzo’s Quest Megaways

By Red Tiger Gaming, follow the adventure trail with up to 117,649 ways to win, an Avalanche feature, increasing multipliers and wins that can pay up to 21,000 your stake.

Online Slots Tournaments Ireland

Guaranteed to bring out your inner competitive, online slot tournaments are exciting. Players compete against each other for attractive rewards while playing fun-filled slots. Irish online slot tournaments have rules and different durations:

Daily Tournaments

Designed to amp up the heat, daily tournaments last a few hours or could run into a whole day. When you’re done with slots for the day, you can get a short energy burst by competing with other slot players. Prizes range from €100 to €1000

Weekend Tournaments

Held weekly, these tournaments are known to provide larger prize pools, reaching €10,000. Usually held from Monday to Friday or Sunday to Saturday, weekend tournaments are ideal for players who need more flexibility.

Special Events

Fun-filled tournaments are held on festive holidays, promotions, or simply to release a new slot game. These tournaments can vary in length but often coincide with the promotional period. Prizes range from €100 to €20,000 and more.

Month-Long Tournaments

These monthly slot tournaments leave enough time to collect points or achieve objectives. With bigger prize pools or progressive jackpots that grow over time, winners have been known to walk away with wins of up to €100,000 and sometimes in the millions.

Slot Wars

Slot Wars tournaments are regularly featured at top-rated online casinos. In them, players compete against each other to earn points. At the end of the tournament, slot players with the highest points win cash prizes.

Here’s how players typically join and participate in online slot tournaments:
  1. Register at an online casino that’s holding slot tournaments.
  2. Registration could be free or require a buy-in fee, which will be part of the prize pool.
  3. Once registered, the casino will tell you about the slot game, duration, and prize structure.
  4. Once the tournament begins, players start spinning the slot game’s reels.
  5. Points are awarded on the size of wins, frequency of wins, and bonus features.
  6. Competitors’ scores are shown on a leaderboard in real-time.
  7. Highest scoring players get cash rewards, bonuses, and Free Spins.

Online Slot Mechanics & Features

This is where the magic sauce happens. Whilst the basic concept of most online slots is the same, through a unique mix of game mechanics, this will impact gameplay and potential winnings. Here, our slots experts summarise the main features of online slots:

Base Game

When you start playing any slot game, you will begin playing in the base game. Quickly looking at the paytable will help you choose your bet size and start spinning. The bet size, or spin value, lets you customize your bets to align with your budget.

Coin Value – How much you bet. You can adjust your bet, starting at €0.01 per line.
Bet Level – How many coins are you betting and wagering per spin?
Paylines – Choose how many pay lines you want to activate
Wilds – Slot symbols that substitute other symbols in a payline for larger payouts.
Scatters – Scatters are symbols that activate Free Spins, multipliers, or bonus rounds.

Matching Symbols

Most classic slots require a minimum of three matching symbols to create a win, but some slots will also pay for matching just two of the highest-value symbols.

Game Mechanics

Pays Both Ways – Wins are paid for combinations from left to right and right to left.
Cluster Pays – Matching symbols (usually 5-7) form a cluster and pay a win.
Anywhere Pays – Similar to Cluster Pays, symbols can be located anywhere.
Scatters – Usually, landing three scatter symbols will trigger the bonus game.
Wilds – Symbols that replace any other symbol except for Scatters or bonus symbols.
Cascading Reels – Symbols disappear, and new symbols fall from above to fill the spaces.
Expanding Wilds – Wilds that expand to cover an entire reel.
Bonus Buy Feature – Enter the bonus round instantly without waiting around.

Highest RTP Slots ( Return To Player )

The most important slot concept to familiarise yourself with is RTP, which stands for return to player percentage. It refers to how much a slot machine is expected to pay you over a prolonged period based on a calculated average.

RTP refers to the house edge. If a slot has a 95% RTP, the average the house claims will be 5% for every €100 staked, while players will win back 95% across time and many spins.

There are three ways to determine how lucrative a slot game is:

RTP refers to the percentage of all wagered money paid back to players over time. Most slots have an RTP over 95%, meaning 95% of all bets will be paid back to players over time.

Volatility, or variance, refers to how risky a game is. Low-volatility slots pay out more frequently but with smaller wins; high-volatility slots pay bigger prizes less frequently.

Slot games come fully loaded with Free Spins, bonus rounds, multipliers, and progressive jackpots, and knowing how each game feature works will affect your payout.

It’s worth remembering that slots are games of chance, which means that sometimes you win and sometimes you lose, but that’s how it goes with slots.

Turbo boosts your chances of winning big prizes by playing the highest RTP slots!

Rank Slot Game Developer RTP
1 Bloodsuckers NetEnt 98%
2 Avalon II Microgaming 97%
3 Guns N’ Roses NetEnt 96.98%
4 Thunderstruck II Microgaming 96.65%
5 Wheel of Fortune IGT 96.46%
6 Mega Fortune NetEnt 96.6%
7 Starburst NetEnt 96.01%
8 Gonzo’s Quest NetEnt 96%
9 Book of Ra Novomatic 96%
10 Wizard of Oz WMS 95.99%

Top 5 Tips for Playing Online Slots in Ireland

Top Tip Number 1

Before playing slots, understand the game mechanics, including payline, special symbols, bonus rounds, and other unique slot features.

Top Tip Number 2

You must set a budget and stick with it. Slots can mesmerise you with their unique sound effects and vivid graphics but can also easily lead you astray. A budget is essential to keep you on track with your spending and playing time.

Top Tip Number 3

Choose the right slot game according to themes and RTP%. Whether you enjoy high-volatility games with big payouts or low-volatility games with smaller but more frequent wins, slots cater to everyone’s tastes and budgets.

Top Tip Number 4

Regarding slots, take advantage of bonuses and promotions to boost your bankroll. Remember always to review the terms and conditions associated with bonuses, so you know the wagering requirements.

Top Tip Number 5

Our last tip is to pace yourself, bet small if you want to extend your gambling time, grab bonuses to have more money to play with and practise responsible gambling.

How to Play Free Online Slots?

Playing free online slots is great. You can bet like a high roller, try all sorts of new strategies, and make mistakes while you learn new tricks without spending money!
At our featured online casinos, you can play demo or free-play versions of their slots. Pick any slot game that intrigues you, and the casino will pile on the virtual credit.

Take advantage of casino bonuses that offer No-Deposit Free Spins. You won’t have to pay anything to get them; best of all, you can convert them to real-money slots wins!

Play slots for free at social casino apps, and if you’re feeling lucky, you can purchase additional credits or coins in some social casino apps, but you’re not obligated to do so!

What is the best online slot software on the market?

The best online slots software on the market creates a diverse game selection with high-quality sounds and graphics that can be accessed on PCs, tablets, and mobile devices.

The slots must have innovative gameplay features, mobile compatibility, and a user-friendly interface. Furthermore, the best online slot software offers responsive customer support, some of the best bonuses in Ireland, and a positive reputation in the industry.

Here are some of the best software companies and their slots you can try:

  • NetEnt – Starburst, Gonzo’s Quest, and Mega Fortune.
  • Microgaming – Mega Moolah, Game of Thrones, Jurassic World.
  • Playtech – Branded slots, Age of the Gods, Buffalo Blitz.
  • IGT (International Game Technology) – Cleopatra, Da Vinci Diamonds, Wheel of Fortune.
  • Play’n GO – Book of Dead, Reactoonz, and Rise of Olympus.

What kind of bonuses can I expect at top online slot sites?

Online casinos catering to Irish players make all sorts of bonuses available. From the new player’s welcome bonus to Reload Bonuses for existing players, you can pick and choose bonuses when you join a top-rated online casino. Here are some options you can try today:

No Deposit Bonuses at Slot Sites

These bonuses are the most highly revered as they require no deposit to claim. Register a new casino account, then claim the No-Deposit Bonus. They are rare, but we will ensure you can access a variety of casino bonuses with no deposit needed. They are mostly for new players to enjoy, but some casinos frequently award these bonuses to their clients.

Reload Bonuses at Slots Sites

It’s not just new players that get the spoils. Loyal players also get spoiled with casino bonuses. The Reload bonus is an incentive for active players who make regular deposits. You could get a 50% reload bonus up to €200 with deposits from at least €30.

Cashback Bonuses at Slots Sites

A casino might also give you cashback when you deposit and lose bets during a specific period. For example, if you deposit €20 and lose it all in the next seven days, the casino will give you a percentage back, such as 10% or €2, to spend on slots and casino games.

Welcome Bonus & First Deposit Bonuses at Slots Sites

Almost every online casino advertises a welcome bonus to convince you to join, and as it lets you claim an average of €1000 and 100 Free Spins, at the very least, it’s an attractive offer. An example of a first deposit bonus is a site that offers new players the chance to get a 100% sign-up bonus for slots on deposits from €20 to €500, plus 50 Free Spins.

Daily Free Spins and Regular Free Spins at Slots Sites

Some of the hottest online casino sites for Irish players offer daily Free Spins on the best slots. Check the Promotions Page for these offers. You can withdraw your wins after reaching the wagering requirements and other bonus T&Cs.

Loyalty Programmes at Slots Sites

The best Irish slot sites have a loyalty programme, where you can collect many rewards such as lower wagering requirements, holiday prizes, and a personal assistant. The VIP/ Loyalty Programme is typically made up of tiers or levels you must climb to level up. Every real money bet and deposit you make will gain your Loyalty Points.

Safe Online Slots Software

There are many reasons software makes a difference to your gambling. Here’s a quick overview of why software developers matter at online casinos:

Creation of top-rated slots New slots with different themes, features, and gameplay mechanics
Cutting edge Innovation New features and gameplay,  bonus rounds, jackpots, interactive
Fairness and Security Strict regulations to ensure fair gameplay
Jackpot prizes from €1M! At best, online casino players can win big through progressive jackpots.
Global Accessibility Slots and casino games are available globally
Ongoing Support Players can expect 24/7 ongoing support
Bonuses Software companies provide bonuses in their games, such as Free Spins
Payment Providers Wide range of deposit and Instant Withdrawal options

Which providers make the best slot games?

Thanks to top-rated software developers, we can try our luck on sensational slots and hopefully win big.

Here are the best software studios you will find at online casinos in Ireland:

Slots from Pragmatic Play – Pragmatic Slots

With beautifully crafted games like The Dog House, Gates of Olympus and Buffalo King, pragmatic slots at online slots Ireland are exciting and immersive. Their Drops & Wins with free entry give €2 million monthly in random cash drops and leaderboard prizes.

Slots from Play’n GO

Everyone enjoys Play’n GO slots, as they are creative and unique. Play’n GO has created many Ancient Egyptian-themed slots, including the very popular Book of Dead, a modern-day classic that has inspired hundreds of similar “Book of” titles.

Slots from Big Time Gaming

Big Time Gaming pioneered the Megaways game mechanic and has created Megaways best online slots with huge payouts, such as Bonanza Megaways and Extra Chilli Megaways.
Slots from Blueprint Gaming

Best known for their branded slots like Top Cat, Inspector Gadget, and the King Kong Cash slots, Blueprint Gaming slots are exceptional in quality, personality and payouts. Players will know the Blueprint Jackpot King progressive jackpot pool that paid out €8m to a lucky player in 2021.

Slots from Novomatic

A giant software company that delivers best-selling slots Ireland, Novamatic was among the first developers to diversify into online slots from their slots at land-based casinos. One example is Lucky Lady’s Charm Deluxe, which has been converted into an online game.
Slots from Push Gaming

Creators of the extremely popular Fat Rabbit, Fat Santa and Fat Banker series of slots, Push Gaming also won many awards for the 2018 release of Jammin’ Jars, a massively popular slot game for its potential for exponential wins, 20,000 times your bet.

Slots from Microgaming

Still, a leading slots provider, Microgaming has many slots featured at online casinos. Some of their most-played games include Immortal Romance, Game of Thrones, Lara Croft and Jurassic World. The two biggest progressive jackpots by Microgaming are WowPot and Mega Moolah; both can pay winners life-changing payouts that can reach millions.

Slots from NetEnt

An early pioneer of online gaming, NetEnt has been around since 1996. Players love their slots as they are among some of the best. The iconic slot game Starburst remains the most popular online slot, with Gonzo’s Quest and Fruit Shop close behind.

Slots from Scribe

Winner of best slots developer at the most prestigious iGaming awards in London held at the Hippodrome Casino in 2024, Scribe won Breakthrough Company of the Year. With online casino games like Aviator, Scribe is set to become one of the best crypto game providers.

How to sign up at an online slot site?

  1. Find your favorite online casino on our pages.
  2. Register a new account by filling out the registration form.
  3. The casino will offer you a bonus after depositing the minimum deposit.
  4. Accept the slot bonus and deposit it at the cashier.
  5. The slots bonus will be loaded onto your account.

What are the advantages of online slot sites?

The first and biggest advantage of all slots casino sites is the huge variety of games you can play from the comfort of your home or on the go with your mobile device.
New online casino sites give solid promotions to new players, adding to the many advantages they are to slots online sites:

  • Thousands of slots at your fingertips
  • You can play on the go from wherever you are
  • Use your mobile to play mobile-optimized slots.
  • A multitude of themes is available.
  • Fun game mechanics and bonus features
  • Slots can be found at reliable online casinos.

What are the disadvantages of online slot sites?

As with anything in life, slot sites also have disadvantages:

  • Not all the online casinos you find are legit and trustworthy
  • For land-based casino players, some of the thrill is missing
  • Some casinos have dubious and hard-to-reach bonus terms and conditions

What payment methods can I use for slot online Ireland?

These days, casino players can use multiple payment providers, including eWallets, traditional bank cards, top-up cards, and Crypto.

Visa, Mastercard, and Maestro are safe and reliable but take up to 5 working days to deliver their wins, while eWallets like PayPal, Neteller, Skrill, and ecoPayz will deliver in up to 24 hours. The payment providers on offer depend on the online casino where you play.

Can I win real money on online slots Casinos in Ireland?

Yes, you absolutely can! If you deposit with real money, you can win real money on casino slots and other casino games. When joining a new casino, you can withdraw your winnings in real cash, but you must verify your account. Also, if you use a welcome bonus, you must fulfil the wagering requirements before withdrawing.

Can you play online slots on your mobile phone?

As our lifestyles become more dynamic, mobile gaming is becoming more popular. You can play the best online casino for slots on the go using your mobile with the most real money slots, as the HTML5 software used to program them ensures the game will adjust to fit your screen. Nowadays, nearly all online casinos and slot games are mobile-compatible.

What other games can you play at online casinos?

  1. Slots and progressive jackpot slots
  2. Table games like roulette, blackjack, poker, and baccarat.
  3. Bingo, keno, and arcade-style games.
  4. Live Dealer Casino games and Live Slots
  5. Crash Gambling games like Aviator

Play slots for free at our featured online casinos!

Our top 5 tips for playing online slots Ireland

Consider these tips when playing slots at online casinos.

  1. Start with the demo slot version to familiarise yourself with the gameplay.
  2. Use responsible gaming tools to control your spending.
  3. Only bet real money that you can afford to lose.
  4. After triggering the Bonus feature, lower your bet for a while.
  5. Ensure you know the pay table as well as the rules of the slot game.

Online Slots in Ireland with Progressive Jackpots

Progressive slots are jackpots that grow as players bet and use a jackpot network. This network means players from different casinos can contribute to the jackpot amount, and anyone can randomly win it as they play the game. There’s often no maximum on how large the jackpot can grow, but developers will likely state someone will win it before reaching a specific amount. Usually, progressive jackpots can reach millions.

Differences Between Online Casino and Land-Based Slot Games

Online Casino Slot Games Land-Based Slot Games
Available 24/7 with an internet connection Restricted to physical locations
Play from the comfort of home or on the go Requires travel to a casino venue
A more comprehensive range of games with diverse themes Limited by physical space, so fewer options
Interactive, animations, and bonus rounds Interaction is limited to pressing buttons
Various bonuses and promotions Offer comps, free drinks, and snacks
It provides a degree of anonymity Requires physical presence, less privacy
Accept a wide range of payment methods Accept cash and sometimes debit/credit cards
Often feature progressive jackpots Jackpots may be fixed and usually smaller

What You Should Know About Slots?

Top software providers like NetEnt, Pragmatic Play, Microgaming, and Play’n Go constantly release new online slot games, so play at our featured top-rated casinos to always find the newest titles added to the lobby.

Other than that, the most important thing to know about Slots Ireland is that they pay random prizes, and there is nothing you can do to influence bigger payouts.

Slots work with Random number Generators designed to ensure they pay out randomly. Plus, top Irish casino sites use the services of independent game testing agencies to audit the games’ results.

 What You Should Know About Slots?

What is RTP - Return to Player in Slots?

RTP stands for Return to Player Percentage. Based on a calculated average, it’s the amount of money a slot is expected to return to you over many spins. RTP also refers to the house edge. Here’s an example for you to see how RTP works in your favor:

If a slot game has an RTP of 94.85%, the average house claim will be €94.75 for every €100 stake. However, slots online Ireland are games of chance, so some players will profit, and others will lose. That’s just how it goes.

What is Volatility in Online Slots?

Volatility is how much risk is associated with a slot game, categorized into 3 levels:

Low Volatility – Slots pay out smaller, more frequent wins.
Medium Volatility – An average between low and high volatility games.
High Volatility – Slots pay larger payouts but less regularly.

Bonus Rounds, Free Spins and Free Demo Slots

The bonus round is usually triggered when three or more Scatter symbols land on your reels. You will be rewarded with Free Spins and enhanced multipliers when this happens. Try free demo slots and practice all your best moves. Here’s what to look out for:

Expanding Reels – Reels expand so that symbols cover all reels for big wins!
Retriggers – During a bonus round, you can land more Free Spins rounds
Jackpot Wheels – An exciting way to get bonuses is to spin the jackpot wheel.
Link & Win – A respin game feature by Microgaming, more Free Spins land on your screen

3-Reel Slots

These are classic and nostalgic online casino slots with 3 reels, simple gameplay, and fewer symbols and pay lines. They are often appealing to players who enjoy simple slots.

5-Reel Slots

It features more complex gameplay across 5 reels, bonus features, engaging themes, and larger potential payouts compared to 3-reel slots.

Megaways Slots

Exciting online slots real money that are super appealing for their dynamic reel layouts, offering thousands of ways to win with each spin and providing a thrilling gaming experience. Developed by Big Time Gaming, Megaways slots have massive Multipliers and mystery symbols. Megaways slots pay huge prizes that can reach €10,000, up to €100,000.00.

Best examples include Bonanza Megaways and Gonzo’s Quest Megaways.

Jackpot Slots

For those massive online casino prizes that can reach thousands and millions, jackpot online casino slots deliver and are among the most procured casino games online.

Cascade Slots

This feature replaces winning symbols with new symbols, also known as cascading reels or avalanche slots.

Cluster Slots

These slots use clusters of matching symbols instead of traditional paylines. They also have exciting bonus rounds, special symbols, and increasing multipliers for bigger payouts.

Grid Slots

Unconventional reels with a grid format where symbols fall into place rather than spin into place. Grid slots have unique mechanics and are enjoyable to play.

Guides, strategies, and tips to win a Jackpot

  1. Get the best possible results with maximum bets per spin. Many progressive jackpot slots require this, so make sure you are betting enough before you play.
  2. Choose jackpot slots with higher volatility and RTP%, as well as larger jackpot pools, as these offer a greater potential for top wins.
  3. Play a progressive jackpot slot game when its progressive jackpot meter is above its average payout value. This will increase your odds of landing a jackpot prize.
  4. Don’t gamble more than you can afford, and understand that winning a jackpot is mainly because it is a game of chance, with no guaranteed strategies for success.
  5. Play free slots no download, and learn the rules and pay tables in fun and leisure.

Can I play slots using Crypto – Bitcoin, Ethereum, Litecoin?

Yes! Play the best slots online at Crypto Casinos and use Bitcoin, Ethereum, Litecoin and many more Cryptos to fund your slot gambling games at online casinos.

Minimum Deposit and Bet Amounts for Online Slots

The minimum bet is the lowest you can bet on a slot game. Minimum deposits at online casinos are often €10 to €20 or more or less, while the minimum bet amounts per spin usually range from €0.01 to €0.50, depending on the game.

Minimum Withdrawal Amounts for Online Slots

The minimum withdrawal at online casinos is the lowest you can withdraw at one time, and it can range from €10 to €20.

Maximum Deposit and Bet amounts for Online Slots

The maximum bet – The most you can bet on Best slots to play online. Depending on the casino, maximum deposits at online casinos can range from €1000 to €10,000 or more, while the maximum bet amounts per spin usually range from €50 to €100.

Maximum Withdrawal amount for Online Slots

The minimum withdrawal at online casinos is the lowest you can withdraw at one time, and it can range from €10 to €20.

Gamble Responsibly with Online Slots at Casinos Ireland

While playing online slots is fun, it is still important to gamble responsibly. Responsible gambling tools are available to set deposit limits and limit your spending in one sitting. This section of the casino also offers links to support groups for compulsive gamblers.

To vary your online gambling, play free slots online, and take advantage of responsible gambling tools like self-exclusion programs and support hotlines that help the players maintain healthy gambling habits.

Slots Casinos FAQ’s

Are online Casino slots legal to play in Ireland?

Yes, online slots are legal in Ireland.

Can I win real money on slots?

Yes! Slots let you win real money!

Which slot casino has the best payouts?

The best slot casino operates with a license from a legit iGaming regulator.

Where can I find the best online slots in Ireland?

On our pages at, you will find some of the best slot sites in Ireland.

Can I play all online slots on mobile?

Yes! Mobile slots gambling games are among the best there are

What types of slots can I find at Irish slot sites?

You will find slots, Poker, Roulette, Blackjack, Roulette Live Games, and Jackpots.

How do I know if a slot site is safe and legitimate?

Always check to see if the casino is licensed by a regulator such as the UKGC.

What is a payout percentage?

The amount of wagered money, a slot pays back to players over time.

Do online slots let you win real money?

Online slots let players enjoy real money wins.

Are online slots rigged?

Slots can’t be rigged because of their random number generators (RNG)

How do online slots work?

Slots are easy to play. Choose your bet size and press the star to get the reels spinning.

How to play free slots online as a Irish Gambler?

Head to one of our featured online casinos and play free slots no download needed at Casino Mobile or Laptops.

Conclusion and expert opinion on slots by Casino Treasure

Slots remain the most fun you can have when playing online casino games. They lure you in with regular wins and leave you hanging, but we love them anyway. We hope our slots guide shows you how important it is to pace yourself when you play, bet low and slow, and not chase wins. When it comes to slots, they pay out when they want, so we might as well happily spin our way, all the while seeing this game for what it is: online entertainment and the chance to take home some much-appreciated moolah!


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Senior Writer and Editor

Ginevra has been an online casino expert for 7 years. She knows the ins and outs of online casinos. Ginevra specializes in online casino reviews, gambling regulations, Casino News, Casino Bonuses, and Casino Games, and provides quality content on everything related to Online Casinos. Ginevra has been instrumental in creating the content structure for Casino Casino Treasure.

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Dean is a Casino Veteran and has been following the Gambling industry for 20 years. Dean has a deep understanding of Online Casinos, Online Slots, Online Casino Bonuses, Online Casino Reviews, Online Sports Betting, Online Gambling, Casino News, and updates. With his experience, Dean fact-checks the Casino Treasure website to ensure that our users are well informed.

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