Slots Online – Play Real Money Slots (Ireland 2024)

Author: Orla Byrne,

The champion of casino games at online casinos in Ireland. Slots are a favourite for many but what are they, what do they offer, and where can you find the best slots online? Our guide is going to answer all of your slot questions for you.

Best Casinos to Play Slots Online


888 Casino
€1500+ 88 Free Spins

18+ | New players only | Min. deposit 20EUR | Bonus validity 14 days from receipt | Free spins given within 5 days from bonus activation, 20 free spins a day | Wagering req. : 30x bonus and deposit | Wagering, banking, apply | Play Responsibly |

Ice Casino

18+ | New players only | Player has 4 days to activate offer from registration | Player has 5 days to make each deposit of min. 10EUR | Wagering requirements 40x bonus need to be fulfilled within 5 days of bonus being credited | Additional Wagering req., Terms & Conditions may apply | Play Responsibly |

Mr Green
€100+ 200 Free Spins
William Hill

18+. New customers only. Opt in required. 1x per customer. William Hill Frenzy Vegas Millions only. Min £10 stake. Max 200 free spins at £0.10 per spin. Free Spins expire 24 hours from issue. Max redeemable £30. Further terms apply. Play safe, See full Terms & Conditions.

How we Review Casinos for Online Slots

casino-slot-games casino-slot-games

Our background in working for the industry and playing against it at a professional level has enabled us to acquire a level of expertise that very few can claim. We know how online casinos are made and how they function behind the scenes. As former players, we know how to find quality and assurance of fair gaming amongst the thousands of different options out there.

To review casinos that offer you the best online slots in Ireland, we sign up as members to test and check first-hand. We also perform background checks on the operator to make sure the foundations of the service is as it should be, both from a security level and legal level.

Our talents in this field come with a set of criteria that comes with our service. what follows allows us to give the best review of games and casinos, provide a detailed assessment on all services and features including banking and customer support.

You will have from us, the most honest and clear assessment of Ireland’s best online casinos.

Our Criteria:

  • Licensed & Regulated Casinos Only
  • Slot Selections from Multiple Developers
  • Bonuses with Fair Terms and Conditions (T&Cs)
  • Highest Return to Player (RTP) % Score
  • Banking Options & Fast Payments
  • Mobile Compatibility
  • Layered Customer Support

Best Slot Machines to Play - Highest Paying Slots

The highest paying slot is the game that has a bigger return compared to the money the game takes as profit! It is not to be confused with the size or amount of money you could win, nor the likelihood of winning.

First, let us explain the Return to Player (RTP). All slots are built using an algorithm that determines how things are won and lost. The RTP of a game is based on a percentage. As an example, Mega Joker made by NetEnt has an RTP of 99%.

You will NOT win this slot 99% of the time you play it. What this is telling us, that of all the money put into this game from all players in Ireland and the rest of the world, of all that, 99% of it is paid out in wins in the long term.

So, the higher the percentage, the higher the frequency of winning becomes. Therefore, the game is seen to be the more favourable one to play on the balance of things.

Here is a table of the top 5 highest paying online slots you can get online in Ireland:

Mega JokerNetEnt993Ave €30,000
Monopoly Big EventBarcrest96% - 99%5€50,000
Ooh Aah DraculaBarcrest96% - 99%5€2,500,000
1429 Unchartered SeasThunderkick98.60%5€67,000
Blood SuckersNetEnt98%5€75,000

Online Slots Bonus Types for Irish Punters

Casino promotions offer up a host of opportunities to play with slot bonuses. Bonuses are varied and can allow a player to enjoy their favourite slot games with additional spins and game credit. Bonuses vary depending on the promotional offer, so they are subject to change from time to time. Not all casino bonuses are the same and you will always need to read the Terms and Conditions (T&Cs). An operator providing free spins may not offer the same number as its competitor.

Here are four of the most common casinos bonuses you will find throughout the top 10 Irish casinos online:

Welcome Bonus: The welcome bonus will always be the first bonus you come across when you look to join an online casino. It is primarily there to attract players to the site. Though a marketing tool, it nevertheless, gives players a bonus to use. The welcome bonus has its criticisms, too much of the ‘too good to be true’ factor.

Now examples of this could offer you a 100% match bonus up to €500 with 200 free spins and a 35x Wagering Requirement.

The eyes see 100%, €500 and 200 free spins. What you may not realise immediately is that this bonus will cost, and you will have to pay an average of 35 times the amount of the bonus you receive, which is what that 35X Wagering Requirement means.

Welcome bonuses are often a mix of cash credit and free spins, but this can vary between casinos. Always read the T&Cs before you commit to using these exclusive offers that are for new players only.

No Deposit Bonus: The No Deposit Bonus is like the Holy Grail of casino bonuses. This bonus gives you more freedom in the sense that you do not need to pay a deposit to activate the reward. It will still, however, come with the usual T&Cs that must be read prior to use.

The no deposit bonus tends to give players a minimal reward, again, this could be in the form of cash credit or free spins. The amount and numbers will vary between casinos but usually, your cash is in the region of €5 to €25, and your free spins 5 to 50.

Free Spins: The most commonly used casino bonus that is attributed to online slots. Free spins do what they say, you can use them to play slots – for FREE! But let’s back up a bit. Free spins, as a bonus, can come in two different packages. The free spins you do get free as part of your casino loyalty bonus, for example. Then you have the free spins you invariably pay for in the end.

If you are paying/depositing money to claim a free spins offer, the chances are that those spins are going to be more substantial in number than if they were collected of given for free. Some promotions regarding free spins will undoubtedly come with limited game options that are eligible with the bonus, as well as Wagering Requirements, so please check all T&Cs before using the offer.

Note: All bonuses come with T&Cs that highlight how the bonus is to be used correctly. You’ll be informed of the overall bonus, the deposit amount to activate the offer (if required), the wagering requirement that effects the withdrawal of the winnings, what games are eligible to play with the bonus and when it expires.

Best No-Deposit Bonus for Online Slots in Ireland

Currently, players in Ireland can claim a fantastic No Deposit Bonus offer from SkyVegas. This new customer offer rewards you with 50 FREE SPINS – no deposit – no wagering!

Claim this incredible free offer to enjoy the best slots within SkyVegas and play with no risks as it is completely free, no catches and with SkyVegas there are no hidden terms.

All 50 free spins will be credited to your account within 24-hours of opting-in on the bonus. All spins must be used within the first 7 days. Spins are each valued at 0.10 per spin. You can increase your spin value, but the number of spins will decrease.

Get 50 free spins that are eligible for the following games:

  • The Goonies™
  • Eye of Horus™
  • Fishin’ Frenzy™
  • Lion Festival™
  • Super Spinner™
  • Slots O’ Gold™
  • King Kong Cash™
  • Beavis And Butthead™
  • Genie Jackpot™
  • Luck of the Irish™
  • Deal or No Deal Megaways™

If you spend €10 after joining SkyVegas, you can claim a further 200 FREE SPINS with NO WAGERING!!! T&Cs still apply to the offer so please check full details before committing to the offer.

Real Money Online Slots Types

Slots are a decent breed of game. Every conceivable idea seems to have spawned an online slot machine. Games capturing official Hollywood movies, taking players into Greek mythology, and across new worlds at different times. From animals to zombies, there is a slot machine that captures every genre, theme, and style there is, yet somehow, the developers seem to come up with something new, time and time again.

Just as diverse as the options which, by the way, go into the thousands that are out there. The construct of a slot is also different, rarely will you find two games alike. By this, we mean how they are made, and there are two elements to this.

1: The RTP: All slots are built with an RTP algorithm. This gives a slot machine a percentage score of the game's winning return. This score wavers between 95% and 99% across all slots online.

2: The Volatility: This is about the performance of a slot game and there are three kinds.

  1. (a) Low Volatility: Frequent winnings with a low profitable return.
  2. (b) Medium Volatility: A Balanced performance with a mix of low and high wins.
  3. (c) High Volatility: Fewer wins landed but higher profitability when they do land.

By design, slots can vary in numerous ways.

  • Slot Reels: Play with 3-reel, 5-reel, 7-reel, 9-reel, and expanding reel slots.
  • Paylines: Adjustable paylines and ways to win from 1 to over 5000.
  • Bonus Rounds: Free spin bonuses, Multiplier bonuses, and Pick Me bonuses.
  • Jackpots: Progressive Jackpots, and Daily Must Drop Jackpots.

Traditional 3 Reel Slots

Now regarded as retro reels or retro slots, these are indeed a nod back to how slot machines first used to look. These are the easiest of slots, a classic variation that used to be represented by Bells and Fruits, 7s and BARs as the main gaming symbols. These 3-reel games do carry a weight of nostalgia with them: for any players under 30, they may even look odd and dated, but some slots have been injected with more modern features that bolster the payline from just 1 (as it used to be) up to 50 in some games. Games in this category include Mega Joker, Jackpot Jester 50,000, and Bar Bar Black Sheep.

Pub Fruits

Enjoy this stunning take on the old-time one-armed-bandit game. These slots are made to look like old slot cabinets that you would play down the pub (hence the name).

With slot reels, prize board, a classic bonus trail, and jackpot, the Pub Fruit series is a wonderful nostalgic return to how it was before the Internet was in existence.

Titles include Carry On Camping, Cop the Lot, Deal or No Deal, Genie Jackpots, and Luck of the Leprechaun, to name a few in the series.

Video Slots

Video Slots may sound like an odd definition, slots are slots surely. Yes, but online casinos will categorise different slots because of the features they contain. There is a clear distinction between your 3-reel slots and your video slots. they are defined by having adjustable paylines, they contain one or more bonus rounds, there are additional side games/features, more 3D animated graphics and a greater jackpot to be won from them. Examples of this kind of games include Starburst, Gonzo’s Quest, Jurassic Park, and Street Fighter II: The World Warrior.

Progressive Jackpot Online Slots

Progressive Jackpot slots are a variant of the traditional slot machine game. They are indeed bigger and bolder in their rewards. These games contain jackpots which make for some headline-grabbing figures. The biggest payout ever made online and still is the world record holder, came from Mega Moolah™ and the prize won was €13 million.

Progressive jackpot games are able to amass such sizes because these are network linked games. What this means is that players in Ireland, France, Spain and Australia can access this jackpot, so you effectively have every player in the world putting money into this game to win the jackpot. This of course puts your chances of winning the jackpot at the bare minimum.

But now there are two different types of progressive jackpot game, those with your standard three or four-tier jackpot prizes ranging from the minor jackpot to the mega jackpot. You now have games with Must Drop jackpots which are mostly three-tier jackpots - one being the main prize, and the others that must drop each day, or before reaching a certain amount, or even at a certain time of day .

Top 5 Progressive Jackpot Slots You Must Play
  • Mega Moolah™ by Microgaming
  • Gladiator™ by Playtech
  • Hall of Gods™ by NetEnt
  • Jackpot Giant™ by Playtech
  • Mega Fortune™ by NetEnt

Megaways Slots

Megaways is a gaming format that was developed by Big Time Gaming. They created a new innovative way of playing online slots. A Megaways game plays using 6-reels with an additional horizontal reel above. During a spin, you can land between 2 to 7 symbols upon each reel, so if you have 6 reels with up to 7 possible symbols, you could have 42 different ones land on the base game spin. The horizontal plays as an additional reel of just four simples so that’s 46 possible different symbols that can land. Plus, these games have up to 117,649 pay lines.

When a connection of matching symbols is made, these symbols are then removed from the game to be replaced by newer symbols as the symbol blocks perform a collapsing motion, with the symbols above, dropping into a new position once filled by the winning symbol. These are also known as ‘cascading symbols’ or ‘tumble reels’ .

The Megaways feature is an innovative programming option that is used in partnership with other software developers like Blueprint Gaming and Pragmatic Play. Here are the current top 5 Megaways slots you can play in Ireland:

Ted Megaways™: Based on the original movie, Ted comes with four main bonus features and presents a 3D animation of Ted that hosts the game when he is not sleeping. 96.03% RTP | Volatility: High

Return of Kong Megaways™: This is a follow up of the game King Kong Cash and still bears the same qualities along with four excellent bonus rounds 96.03% RTP | Volatility: High

Rick and Morty Megaways™: Play the official slot release of the animated show Rick and Morty, their first adventure into the world of online casinos. 96.55% RTP | Volatility: High

Gorilla Gold Megaways™: Now, this game comes with a HUGE 470,596 ways of winning. It is the highest RTP of any Megaways games so don’t miss this one. 97% RTP | Volatility: Medium/High

Monopoly Megaways™: One of a number of official Monopoly game releases. You can play the board game, collect the houses, own the electric supply and enjoy epic gaming entertainment. 96.39% RTP | Volatility: High

888 Casino
€1500+ 88 Free Spins

18+ | New players only | Min. deposit 20EUR | Bonus validity 14 days from receipt | Free spins given within 5 days from bonus activation, 20 free spins a day | Wagering req. : 30x bonus and deposit | Wagering, banking, apply | Play Responsibly |

Online Slots Software Providers

Without software developers, there would be no online casino industry. Gaming providers have been essential to the creation of online casinos since 1994.

Software providers have pushed online casinos to where they are now, through continued innovations and adaption with modern technology, their importance cannot be greatly exaggerated.

In the Irish market, you will have access to the very best. There are over 100 in the business, all licensed and regulated to produce fair and entertaining games. They dictate what you play and the RTP percentage. Here are three of the best that you will become very familiar with once registered to any of the top 10 casinos in Ireland.

NetEnt: For many players, NetEnt produces the best slots games on the planet. With 500+ made so far, you’re not short of award-winning options. They have the highest turnover of games with an average of 2 – 3 per month. Since 1996, they have been a global success, producing new innovative games and features to the market. Games include Starburst, Narcos, Divine Fortune, and Planet of the Apes.

Playtech: A master of jackpot gaming series. Their Age of Gods series has over 20 games all synced to its multiple jackpot feature. Their rise to glory was slower than most but patience paid off when they soon produced major brand slots for Hollywood movies. Titles include Top Gun, The Matrix, The Sopranos, Rocky, Robocop, and King Kong.

Microgaming: The first developer to make an online slot machine. Since 1994, Microgaming has been at the forefront of gaming. They have produced over 800 games and won every possible industry award made. Games include Game of Thrones, Thunderstruck II, Terminator 2, Playboy Gold, Wheel of Wishes, Halloween, and Atlantean Treasures: Mega Moolah.

How do Online Slots Work?

Slot games are easy to play and require no skill at all. Here are the 5 main parts of a slot machine followed by other features.

1: Reels

These are independent columns that will rotate to determine a win or loss. The number of reels can be from 3 up to 9!

2: Symbols

Displayed on the reels are different icons, each having a different value. Land 3 or more in a sequence of a pay line and you win.

3: Payline

The pay lines are the ways you can win and run from left to right of the reels. There can be one pay line or thousands.

4: Bet Amount

The amount you wager per spin will have an effect on the winning return you make. Some games note that playing the highest possible amount gives you easier access to the jackpot rounds.

5: Spin Button

The button that starts and stops the spins and allows you to continue your game in nothing lands.

Other Slot Features:

Autoplay: The slot can be played with the auto feature and you can set the number of spins played.

Lines: Adjust the number of pay lines you can bet on.

Bet Per Line: Add additional coin values to your bet.

Bet Max: This auto-selects the largest possible bet value and plays with all paylines.

+ and -: increase or decrease the amount of your wager.

Spin/Stop: Pressing Spin will start the game, and also stop the spin.

Gamble: A side game feature that allows you to gamble your win. Heads or Tails, High or Low. Take the risk to double your winnings or keep what you’ve won.

Collect: Selecting this puts the payout into your bankroll.

Play Mobile Slots Online

The mobile dominates over all devices. With over 75% of registered casino members using their smartphones to play games, having access to mobile-friendly casinos and games is essential.

All casinos listed in our top 10 list are 100% mobile compatible and with them, so are their slot games. You will also find that a number of the top casinos are able to provide their services via mobile apps. Though not essential in accessing the game, it adds instant contact with the slots you love. You can, however, play through your web browser and ignore any mobile app option. The quality of both are exactly the same due to the matching HTML 5 software that’s used.

Look out for special mobile bonuses that can be claimed for using casino app services, though rare, you will find these offers amongst the top 10.

Free Slots Vs. Playing for Real Money

The best news in all of this, regarding online slots, is that you have a choice of how you play. Sure, you can play in real money casino online winning real money that you can keep and spend, but you can also play for free.

Free slot games are commonly used as simple fun features. You can find many free demo games online and throughout our own site. We supply a number of official online slots made by the best software developers online. These demo games allow you to explore the different slots and help you to build your own slot strategy.

The table below highlights the pros and cons of both free slots and playing real money casino slots.

Free SlotsReal Money Slots
✅ Play with no risks✅ Win real money
✅ No downloading is required to play✅ Access progressive jackpot slots
✅ Mobile accessible✅ Mobile access
❌ No real money is won✅ Play all the slot games created
❌ You cannot access every online slot as a demo feature❌ You will lose money

Slots Online FAQs

Which are the Best Online Casinos to Play Slots?

We provide 20 incredible casinos on our site. Each one has an impressive selection of online casino slots to select from. At a push, we have chosen these three because they offer you the full package. A slots welcome bonus, free spins, over 500 slots, progressive jackpots, must drop daily jackpots and mobile access.

How do i pick a good slot machine?

The best place to start is with demo games, as it's better to seek the best games whilst they are free, rather than spending money when trying to make a decision. Use our free demo games to find the best slots for you. Learn from them which have the highest paying RTP % scores and you can practice on slots with different volatility levels to find those just right for you.

What does RNG Mean?

RNG stands for Random Number Generator. The RNG is an algorithmic program that produces random sequencing to mimic normal 'chance'. A program can use billions of numbers to perform the sequencing and it's more about aligning a hit of matching numbers in this sequence than a payment ratio that RTP (Return to Player) games use.

What is a Progressive Jackpot?

A Progressive Jackpot is a network linked slot game that contains the largest payout prizes online. This slot variant can be found in hundreds of casinos around the world and all players are after the same prize. This is how progressive jackpot slots are able to reach prize amounts in their MILLIONS!

I am Irish, Can I Play Real Money Slots Legally?

100%. All online casinos listed at are legally licensed and regulated by competent regulatory bodies and commissions. You are protected by both Irish gambling laws and EU gambling laws to join these site. By doing so, you are legally allowed to play real money slots and keep the money you win, which will be paid in Euros.

Can I play real money slots from my mobile device?

Yes! 100%. All casinos and games are now mobile compatible because they are built with HTML 5 software which is the technology that your mobile uses. You have total access either by downloading a casino app or by playing through your web browser.

Can I play slots for free?

Yes! we supply a large number of free slots that are demo formats of real money slot games. These demo slots are 100% official casino games which you will find amongst the top 10 Irish casinos.

Also, within some of these sites, you can access their demo games before committing to play with real money.

How can I claim a free spins bonus?

There are a number of possible ways that you can claim and acquire a free spins bonus. The first place to look is the casino's promotion page. See if any rewards offer a No Deposit Bonus which gives you free spins rather than cash credit. Check if you can get free spins as part of the welcome bonus also. Another option is through loyalty rewards or VIP bonuses. Be sure that before claiming any free spins bonus offer that you read the T&Cs so you know how to use the free spins correctly.

Orla Byrne.webp

Orla Byrne is our very own Editor in Chief. She’s been with us for the last 5 years and we couldn’t be happier to have her on board. She keeps the team together and delivers every single time. It’s an all-hands-on-deck situation; some of us test and play the games and others write reviews. Together, we work towards one common goal – giving you the best online casino and sports betting experience you deserve.

Read about other games in these reviews: