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Discover the best online slots at the leading casino sites in Ireland. SlotSource sites review all the best online casinos, rating their features, bonuses, and above all, slot games. Whether you're looking to play progressive jackpots, Vegas slots, or the latest movie tie-in, you'll find up-to-date info about all the best Irish slots sites. Check out our latest list below, pick your favourite, and start playing today!
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Find reviews and welcome bonuses for all the latest Irish slots sites to hit the web in 2021. SlotSource's experts thoroughly review the newest casino slot sites launched throughout each year; this year in particular looks to be a huge year for new online casinos so keep checking back for info on all the latest slot sites as well as those set to hit the internet in the coming months!
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<p>IGT is the world’s largest provider of online slots. It is responsible for creating many of the best-loved games in history, including <strong>Cleopatra, Wheel of Fortune, Golden Goddess, Baywatch, DaVinci Diamonds</strong> and <strong>Kitty Glitter</strong>. IGT also produces a range of slots themed on popular movies and TV shows, including Star Trek, Star Wars, Jurassic Park, The Hangover and Ghostbusters.</p> <p>This page reveals the best online casinos with IGT slots. It will explain how to play free IGT slots games online before playing for real money. We will round up some of the most iconic IGT slots of all time, including the games with the highest RTP ratios, the newest IGT slots and progressive jackpot games that offer players the chance to earn huge sums of money. Read on to learn more about IGT slots.</p>


<p>NetEnt is a leading online slot developer that became well-known for amazing graphics, immersive themes, and innovative features. NetEnt games are famous for breaking traditions in the online slot world and bringing players new technologies, features and themes. With a diverse portfolio of over 300 slots covering all types of players, it is easy to be entertained and win big prizes when playing NetEnt slots. </p> <p>Read this comprehensive guide written by our team of experts at SlotSource.ie and learn about NetEnt slot features, design, different slot types and all other aspects that make NetEnt one of the most popular online casino game developers. We also list the most popular NetEnt slots on this page and the <a href='https://www.slotsource.ie/best-online-casino-slots-sites'>best online casinos</a> to play them.</p>


<p>One of the longest-standing online casino software developers, Playtech boasts a catalogue of over 200 slots that feature on the <a href='https://www.slotsource.ie/best-online-casino-slots-sites'>best online casino sites</a>. Playtech is primarily known for its extensive selection of themed slots – from popular movies, comics, athletes and sports personalities. Playtech slots even feature the world&#39;s most famous superheroes. It is also known for its incredible selection of over 50 progressive jackpot slots. But if you are looking for classics, you will also enjoy Playtech&#39;s simple 3 and 5-reel slot games. Whichever Playtech slot you play, you can expect its stamp of quality thanks to amazing visuals, lucrative bonus rounds and innovative features. </p> <p>Read this guide written by our team of slot experts at SlotSource.ie, and discover the best Playtech slots, the top Playtech casinos and where to claim the most generous bonuses that let you spin the reels of Playtech blockbuster games without spending your own money. </p>


Microgaming has long been involved with the online gambling scene, originally launching as the first fully functional online casino website in 1994. After that, the company saw a bigger marketplace for developing games and selling them to other emerging online casinos and switched its business model – to enormous success!

NextGen Gaming

Part of the highly respected NYX Gaming Group, NextGen is an online casino software developer that thrives on providing end-to-end gaming solutions. From slots to some of the most unique in-game enhancements in the industry, NextGen Gaming is constantly striving to push the boundaries of what's possible!


When it comes to categorising slot game releases from Barcrest, it would be fair to assign them the label of ‘substance over style’. Most experts within the industry as well as players around the world would agree Barcrest slots are some of the most feature packed games around, with a myriad of bonuses to try and trigger!

Play'n GO

When you want instant, HD-quality gaming that suits you, you turn to Play'n GO. Known across the iGaming industry as one of the top software providers, every Play'n GO slots offering brings a unique retro charm to the table. Play'n GO casinos are capable of offering an impressive blend of images, innovation and immersion!


WMS Gaming is not only a major player in the iGaming industry, it's been a pioneer since 1974. Through a long and storied career, both as a traditional gaming company to a casino software developer, WMS has literally done it all thanks to its impressive selection of topnotch casino content distributed all across the web!

The Ultimate Guide to Online Slots in Ireland 2021

If you've ever stepped inside a live casino, the first thing you'll have noticed is row upon row of twinkling lights and spinning reels. Due to their convenience, size and drawing power, slot machines have long been the most popular casino games in the UK, the US and beyond. Indeed, because slots give players of all skill levels the most bang for their buck, developers and operators have put a lot of time, energy and creativity in their products.

Naturally, once online casino gaming hit the mainstream, slots became the backbone of the modern site. Taking inspiration from the live casino sector, online slots now come in all shapes and sizes. Naturally, with so much choices out there, it can be tricky to find the right slots online. Fortunately, if you stick with this 2021 guide to the best online casino slots for the next few minutes, it'll take you through everything you need to know!

How Internet Slots Work

Before you make your choice and start to play any of the best slots online, you need to know the basics. Even if you've played live slot machines before, you'd be urged not to skip this section because online slots have some subtle nuances you need to know about. Firstly, online games typically offer multiple win lines. Irrespective of the number of reels, most online slot games will allow you to adjust the number of active win lines.

This basically means you can make more winning combinations starting from reel one (furthest on the left) and moving across to the right. In general, online slots will dispense a prize when you match three or more symbols. Although some games allow you to roll in two matching icons, the standard starting point is three. On top of this, wild symbols are used to help improve your chances of creating winning combinations.

These symbols can substitute for any other symbol in the game expect for the scatter. On top of wilds being shape shifters, they also unlock slot bonuses. In fact, the big difference between virtual spinners and real-life slot machines is these added extras. Three or more wilds will typically trigger slot features such as free spins, while three or more scatters will activate some sort of bonus round. Classic slot machines simply have no ability to offer these unique online features.

Advantages to Playing Slots Online

We've touched on some of the advantages to playing slots online in the section above, but it's worth pointing out a few more reasons you should give them a try. Indeed, when it comes to casino games, there are few that are more accessible to newbies than slots and it's because of the following advantages:

  • Low minimum betting limits.
  • Large jackpots topping €1 million.
  • Extensive range of options to suit all players.
  • In-game help.
  • Auto-play features.
  • Interactive mini games and bonuses.
  • Multiple ways to win and easy cash out procedures.

How to Place Your Slots Bets

Slots bets are fairly easy to get your head around once you've accepted the fact that each variable will change your overall stake. In general terms, an online slot can have three betting options: bet per line, coin size and number of lines. Depending on the game, all or some of the above options will be available in your chosen game. To adjust each variable, simply use the +/- buttons. As each one is altered the cost of your overall bet will increase or decrease. For example, if you set the bet to €1 per line with ten active lines, the overall cost would be €10 per spin because €1 X 10 lines = €10.

To make things easier, the best online slots will have an auto spin function. Selecting this option will allow you to set your stake before choosing the number of spins you want the software to roll through automatically. The great thing about this option is that you can also set loss/time limits that will shut down the feature before the allotted number of spins so you don't lose too much. Finally, if you're a high roller and don't want to mess around adjusting things, you can simply hit the “max bet” button. This will set the game to the highest betting limit and spin the reels automatically.

What’s the Most You Can Bet on a Slot?

Slots betting limits will vary depending on the game and online casino. However, every virtual machine will have a minimum bet and a maximum bet. This will be a cash amount (i.e. GBP) or a coin amount (a credit that's worth a certain amount). In general, the smallest coin (or cash) amount you'll be able to stake online is €0.01. At the other end of the spectrum, some online slots will allow you to stake up to €100 per spin. In short, it depends on the game and the slot site.

Slot Bonus Features

As noted earlier, the top online slot machines will offer a variety of bonus features. Unlocked by scatters and wilds, these in-game enhancements give you the chance to add some extra coins to your balance. In general, slots features you should look out for are:

  • Bonus Games - These mini games typically involve rolling a dice, choosing mystery boxes or spinning a wheel in return for coins. Once you hit the round symbol, the round is brought to an end.
  • Free Spins - A fairly self-explanatory bonus, free spins will often be accompanied by multipliers. This basically means that any win you roll in with your free spins will be multiplied by a specified amount.
  • Gamble Games - Some online slots allow you to gamble your winnings on a game of higher/lower or red/black. If you make the right choice, you'll double your stake. If you're wrong, you lose the lot and the main game resumes.

Why Do Some Online Slots Use Coins?

Slots coins are something of a throwback. In years gone by, one-arm bandits would operate using credits instead of cash amounts. The idea behind this was to take the emphasis off the money and make the game more entertaining. This is the same in the online world of slot games. Coins basically help you to focus less on the cash amounts and simply play.

How Many Paylines Do Slots Typically Offer?

Although some online slots with a classic twist will offer a single win line, one of the defining features of the genre is the multiline setup. Typically, the best online slots will offer the following dynamics:

  • 10-Payline Slots
  • 15-Payline Slots
  • 25-Payline Slots
  • 50-Payline Slots

How Many Reels Do Slots Typically Offer?

The majority of games you'll find online will be 5-reel slots. However, many of the best slots sites do offer “classics”, which will typically be 3-reel slots. In some instances, you can find 6-reel slots, though the sixth reel is often a bonus feature that's only unlocked at certain times.


Reading an Online Slot Payout Table

Modern online slots give you plenty of ways to win. Thanks to multiple reels and paylines, you can hit winning combinations in all directions. However, the important point to note is (unless otherwise stated) that all wins must start from reel one and work across, i.e. your combo can't start in the middle of the game. Once you've taken this fact onboard, reading a slots payout table is easy. In general, each symbol will be shown in its own box and the payouts for three, four and five matches will be shown to the left. Some online slots will display the actual cash amount (e.g. three symbols = €2) while others will show a multiplier. If you see a multiplier (i.e. three symbols = 3X), you simply multiply your single line stake by the number shown.

How You Know Online Slots Aren’t Rigged

Any online slot housed inside a regulated online casino will be 100% fair. Firstly, the UK Gambling Commission (UKGC) has strict licensing conditions regarding the setup of online slots. Secondly, each software developer and casino site must have their Random Number Generator (RNG) certified by an independent agency. In short, a company like eCOGRA will test an online slot's RNG to ensure it isn't rigged in any way so players can be fully confident their online slot games are fair.

Comparing Online Slots vs Classic Slot Machines

So, why should you play online slots over real-life slot machines? Well, in the beginning of this slots guide we drew some comparisons between the games and, while there are some advantages to slot machines, the reality is that online spinners have the edge:

FeaturesOnline SlotsSlot Machines
User ExperienceMore ways to speed up your play.More tactile.
VisualsMore themes and interactive elements.Often more visual stimuli.
Betting LimitsMore ways to win, i.e. through bonuses.Pre-set limits.
VarietyTypically hundreds of slots offered.Offerings rarely change.

History of Slot Machines in Ireland

As you can see, slots have come a long way since Charles Fey released Liberty Bell back in 1899. When this three-reel offering was produced in the US, it started a chain of events that eventually led to slot machines crossing the Atlantic and landing in Ireland. From that point on, Irish slots history has seen everything from mechanical one-armed bandits in live casinos to computerised pub fruit machines in the 1980s. Today, taking all the best elements from the past and enhancing them with modern technology, online casino sites are able to offer hundreds of varied games. From three-reel classics to multi-payline progressive jackpot games", players now have more choice than at any other time in the history of slot machines.

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