Online Slots

Online slots have been for years now the biggest sensation in online casinos. The quick, fun, and jackpot-filled games are in their thousands in every country. Not only online but also in land-based casinos.

They started around two hundred years ago. Providing players with just some light entertainment quickly turned into the most prominent gambling experience in history. 

We’ve gathered everything you could think of about online slots and where to find the best ones possible. Don’t miss out on what to do with slot bonuses, jackpots, wilds, scatters, multipliers, RTP, the new technology, and much more. Casinoble will guide you through your best online casino experience in 2021!

Slot Sites

Let’s look at the benefits of playing at slot sites. Starting with these games can sometimes look daunting and with so much to choose from. Thus it can be hard to get your foot in the right direction. So if that’s your case, just take a look at all the benefits these games can offer and why you shouldn’t be afraid to try them out at some point:

  • Although it may sound obvious, you can win real money. Not only are these games accessible, but they also pay out vast sums of money.
  • If you don’t like one game, just move on to the next. There are literally thousands of games with the latest features and from the best providers in the industry.
  • Your budget will never be an issue. Some players like to play with €0.10 and others with €1,000. The choice is yours because slots are there to be fun without giving you a headache.
  • The most interesting offers in online casinos are usually in slots. There are numerous welcome bonuses, VIP programs, promotions, and more that you can enjoy almost every day.

Best Slot Sites 2021

There are many slots sites in 2021. However, that doesn’t mean that all of them are great or even reliable. That’s why we at Casinoble have dedicated ourselves to finding the best slots sites in Ireland. To ensure you have an excellent online slots experience. 

Let us recommend slots sites, bonuses, and games currently dominating the market with good reason. Whether it’s on your desktop or mobile.

Take your time to choose one of the casinos, and be sure to play safely and with the guarantee of always being able to rely on a valid and authoritative license.

1#CasinoBonusInformationVisitRating
1Lucky Days Ireland

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How We Review

Finding the right slot in 2021 can be tricky since there’s really an endless amount online. That’s why experienced slot players search for unbiased slots and casino reviews like those from Casinoble. We talk not only about the game itself but about every little detail the game might offer. 

The way we review slot games and online casinos that offer them is through multiple aspects. Where we concentrate on explaining what stands out in a slot and also what to be careful with. Take a look at these aspects and what to expect from each slot feature:

  • Theme: In 2021, themes are as versatile as the games themselves. What used to be a limited environment for different adventures is now filled with movie-based themes, television shows, video games, cartoons, and much more. This attracts not only a wider casino audience. But it is also refreshing to experience new surroundings based on your favorite stories.
  • Graphics: Graphics in slots are as important or perhaps even more important than in video games. Because these games would be nothing without an environment that makes them stand out. That’s why the best software providers do everything they can to not only innovate new games but to add certain touches that make slots a unique and unforgettable experience. The same also applies to the soundtrack. Which, like the graphics, has to be utterly remarkable and unique to enhance the desire to repeat a slot adventure.
  • Technology: Web browsers are not able to render media created in Flash themselves. Therefore, you need to install a Flash player on your device to play a website or part of a website that uses Flash. HTML5, on the other hand, can be rendered by almost any browser. As HTML is the standard system used by most of them. Thanks to HTML5 technology, providers can offer customers new features, incredible graphics, top-notch software, and high-quality casino games on the go. This sets the provider apart from others. This HTML5 technology provides players with fantastic quality games with audio & graphics that are both clear and all in. The software can detect the screen size and quality for more advanced devices and adjusts all graphics to the best option for the device being used.
  • Entertainment level: In slots, it all depends on the amount of entertainment the game achieves. And that is because slots fans love games that are fun, fast, and full of prizes. Hence, these three factors become the cornerstones of any software provider seeking to take things to the next level of entertainment. The last few years have seen huge technological advances that have opened up new feature possibilities such as augmented reality. This promises spectacular games for the near future, with slots on every conceivable theme being a real joy to play.
  • Slot bonuses: The biggest attraction of any online slot and casino is the bonus. Slots are the main casino games that offer casino bonuses of all kinds. Some casinos offer tournaments, leaderboards, and free spins to pamper players. At the top of the list of slot bonuses are welcome bonuses, deposit and no deposit bonuses, and VIP bonuses. But, certainly, the most important thing to do before accepting a slot bonus is to check if it is what you are looking for. Not just a bonus with exorbitant figures. Because once you have the bonus, it is also essential to consider the wagering requirement, which allows you to redeem the money afterward.
  • Slot game selection: The slot game selection available in online casinos has been outstanding and is developing towards the new technologies better than most other online industries. This has created games about movies, TV shows, novels, history, and many more. But that’s not all, since the game selection is also specialized in offering features that attract different players. 
  • Payment methods: Before taking any further steps, you need to check what banking options are available at an online casino. This is an example of why players need to check the cashier area of a casino beforehand. The goal is to find at least one banking method that you can use. If all else fails, you can always use a cryptocurrency like Bitcoin, Ethereum, or Litecoin. One of the biggest complaints about online casinos is the slow withdrawal processing. If you want to withdraw your money from an online casino, you shouldn’t have to wait weeks to get it. No online casino should take more than 24 to 48 hours to process a withdrawal.
  • Withdrawal Terms: Online casinos impose these turnover requirements to prevent players from simply cashing out the money after signing up. These are expressed in the terms and conditions, explaining exactly how you should apply the bonus you have received in each game. Any good casino should explain the bonus terms thoroughly. Read these terms and conditions very carefully, or contact customer support if you have any questions or doubts about proceeding.
  • Support ways: Having the possibility to get in touch with an online casino throughout different ways is essential to have a great slot experience. That’s why most of the most reliable online casinos offer not only customer service but also FAQs, live chats, email and telephone assistance, and more. Although these usually don’t solve individual issues, they help a lot with small concerns like bonuses or slot features.
  • Customer Service: Customer service and reputation are factors that are interrelated when choosing a casino. This is because reputable casinos usually offer good customer service. Customer service is critical because there will inevitably come when you have a problem or want to ask a question. The last thing you want to hear is locusts when you contact the casino. One way to find out if a casino has good customer service is to contact them yourself. You write an email or use the live chat to ask a simple question about the wagering requirements. How quickly and competently they respond will indicate whether you are dealing with a quality operation.

New Slot Sites

Keeping an eye out for new slot sites is more worthwhile than ever before. New online casinos want to assert themselves in the competitive market and score points with excellent start-up offers. An attractive bonus for new customers and a game offer that can easily compete with the established ones… So in terms of content, we don’t have to do anything; on the contrary, we benefit from up-to-date casinos, as they rely exclusively on modern and tried-and-tested games. So you won’t find any outdated titles here. The games are all playable on the PC as well as on mobile devices.

Casinoble only recommends new slots sites that have full European licenses. These are only granted after a thorough review of the seriousness of a company. For example, the software used is continuously checked. Do the machines really spit out the winnings that the provider claims? How does the company handle the players’ money? Are the credit balances cleanly separated from the company accounts? Only if these requirements are met does a casino have a chance of being listed here.

And of course, the offer must have something new to compete with the market leaders. This does not always have to be a new opening. Even a wholly revised website with an updated bonus and/or different software can change a casino to such an extent that a new test is necessary.

Latest Slot Sites

The same conditions also apply to the latest slot sites. Casinoble specializes in checking the latest slots sites in Europe to be able to tell you whether they are worth it or not. This is where a comparison site like Casinoble’s becomes essential because we take care of separating what is actually worthwhile and what is not.

These latest slots sites also have the same requirements as the others, ensuring a safe and fun experience for the best online slots.

Slots With Real Money

Although there is the possibility of playing free slots or demo versions to avoid spending your money, the most exciting thing about slots is winning real cash. Thanks to their broad prizes, bonuses, and above all jackpots, slots are now money bombs, which can go off at any time. 

To play slots for real money, all you have to do is register at a casino. Then you redeem your bonus and then look for your favorite game or see what the online casino has to offer. Some bonuses are available directly at the slot, especially if they offer you free spins that you can then convert into real money.

But even though all casino games are available for money, what makes slots so popular? The secret of slots for real money is that they are fun games with millions of chances to win. Knowing that the game will still be fun if you play without money will still be fun, but there won’t be the thrill of winning massive amounts of cash. Besides, with so much variety and themes, slots also represent the broadest range of features.

Slot Sites with Highest Payout

The higher the payout ratio in the online casino, the greater your chances of winning real money in a slot could be. 

You will notice some significant differences in the real money payouts of the various online casinos. If you want to find the slot sites with the highest payout odds and maximize your winnings, there are a few things you should keep in mind:

  • Test seals such as those from the renowned eCOGRA, iTech Labs, or GLI ensure worry-free gaming. These organizations only award certificates to reputable providers that strictly adhere to fair play and fair payout ratios.
  • If the average payout ratio of an online casino is easy to find, then this is evidence of certain trustworthiness. Reputable casinos with good odds can advertise themselves very well with these.
  • If you prefer a particular type of game, compare the payout odds for precisely this in different casinos to get the best chances for yourself personally.

Slot Bonuses

Now we come to the juiciest part of any slots adventure, the bonuses. As mentioned above, slots distinguish themselves by their vast amount of prizes, which all come in different shapes and sizes. In addition to the classic welcome bonus, many of the casinos know how to target slots fans in more detail with bonuses that are real gems for them. 

If you want to know what to look for when you are seduced by a particular slot or multiple slots, then look out for the following bonuses whenever you can. This boosts your experience 100% every single time.

Here are the four best online casino slot bonuses in 2021:

Free Spins

Online casinos are full of free spins or bonus games that make the games all the more enjoyable. Depending on the casino, free spins go to customers as part of offers, tournaments, or welcome bonuses.

No Deposit Bonus

Among the most popular bonuses on slots sites this year are the no deposit bonuses. These are for new players or those already part of a casino by offering them free spins on some slots. This gives you the chance to try out the game without the commitment of having to deposit money. The no deposit bonus is quite common on new slots. Thus attracting players who would not have tried the slot otherwise.

Cashback Bonus

Who wouldn’t like to get their money back after losing it in around? Well, that’s what the cashback bonus is all about. It gives you the chance to win back a percentage of your slot losses. This doesn’t serve to increase your winnings. But it does give you something back that you can play with later on. Like the no deposit bonus, the cashback bonus has also gained much attention in recent years.

High Roller Bonus

Of course, there must be bonuses as well that go to a high roller group of players. These are the high roller bonuses, which focus on rewarding players who are willing to deposit more money in slots. Compared to other bonuses, these have higher prizes and cash. Thus attracting the attention of elite players or rewarding them for their loyalty to the casino.

Slot Apps

Having a good website with the best slots is not the only thing that is essential these days. For any online casino, having an app or at least a web version to play the slots is as critical as it gets. That is why mobile casinos have become an ongoing area where the best online casinos compete. They release year after year improved versions of their online casinos to have slot apps.

Slots Online

Since the invention of the first slot machines in the 19th century, their popularity has steadily increased. Today, there are millions and millions of online slot machines in the world. Gamblers appreciate the effortless design of the principle. After all, only the reels rotate. These depend on the symbols involved, the programmed payout ratio, the stake, and the risk itself. On top of that, there are many additional games, mini-games, that open up further chances of winning.

To win at the slot machine, no one has to learn complicated tactics, cram endless strategies and practice sessions. And there are no crafty opponents like in poker, for example. The machine alone and its odds are decisive, and with just a few cents, the spins start moving. And, of course, this fascination features many spectacular winnings. You can win without any effort and often with just a few cents, sometimes even in the millions! This is tempting, fascinating. It thrills visitors in Las Vegas just as much as in the online casino. And thanks to the progressive slots available, the possible prize sums grow almost immeasurably.

Online Slot Machines

If there is one thing that seems simple at first glance, at its heart, is one of the most complex things you can find in an online casino, then it is online slot machines. Of course, they serve as a form of entertainment that rewards very well. But to do so, these casino games fill up with features that highlight every single play. 

Let’s take a closer look at the most important features found in each slot and how to use them to your advantage. Once you’ve mastered them, you’ll know exactly how to find a slot that matches your features and ensure a fantastic gaming experience:

  • Bets: The bets are essential in every slot because they will either have to fit your budget or allow you to bet massive amounts to win the jackpot at the end of the day. That’s why slots always offer a minimum and a maximum deposit, which will tell you where the stakes are. The most common minimum deposit in slots is around €0.10. The maximum deposit depends on what the slot wants, but the higher, the better for the player.
  • Reels: A reel in slot machines are the vertical positions on the playing field that rotates after a bet and on which different symbols land each time. All slot machines come with reels, which are arguably one of the most critical aspects. When slots first appeared, they had three mechanical reels that spun after the player pulled a lever. Because they were automatic, these reels had fixed symbols and actually turned.
  • Paylines: There were usually 10 symbols on each reel, and with three reels, there were 10,000 different possible combinations. Over time, slots became a little more complex and exciting. But still retained the mechanical aspect, and decades passed before the technology evolved into what we now call standard slots. Nowadays, slot reels are still an essential part of the slot experience. But they are very different from what they used to be. For starters, video slots have no moving parts, and the whole game renders by microprocessors.
  • Symbols: Symbols are a crucial part of the game as they work in your favor to win prizes. If it wasn’t for the symbols, a game would be useless and would not attract any players. There are already slots that are packing a huge variety of symbols. In the past, for example, the maximum you could hope for was two per reel. But now you can fill them all up and win prizes like never before. And although each game is unique, they are all based on the same structure, offering wilds, scatters, and jokers.
  • Wilds: It is the most common symbol that you can find in almost every video slot. It appears randomly on the reels and can substitute for game symbols to form a winning combination.
  • Scatters: This symbol is rarer than the wild, and it is also more lucrative. Not only does it bring you money by simply appearing on the reels. But it can also trigger free spins, a bonus game, or a multiplier, depending on which slot you are playing.
  • Return To Player: Like the name itself, this mechanism indicates how much a player receives in return. These numbers get picked randomly by the software to provide a safe playing environment based on the RTP of each game.
  • Slot Volatility: Volatility (often called variance or spread) refers to how much risk associates with playing a particular casino game. When referring to slots, the term informs players how often they can expect the slot to pay out and how big that payout will be.

Classic Slots

The classic 3 reel slot is modeled on the original physical machines. Easy to play with simple symbols that match the top, middle, or bottom line to win.

Most online slots have moved away from the classic 3-reel design. Partly because advanced programming made it possible to make the games more visually attractive and exciting. More reels also increased the payline possibilities and created the chance for more cash prizes.

Video Slots

From the massive amount of online slot machines that you can find in brick-and-mortar or online casinos, video slots form a particular category. They have characteristics that distinguish them from all other slots. Above all, the storyline, graphics, playing surface, winning opportunities, and special features characterize this particular slot type. 

A video slot machine can have a playing field in different shapes and sizes. In many cases, software developers choose four to six reels that run over at least three rows. But there are also reel sets with a different number of rows. In addition, the matrix can expand in some video slots to open up many more paylines.

In Megaways video slots, for example, the playing field remains the same size. But the different field sizes of the symbols give a different number of paylines on each spin.

Progressive Slots

Progressive slots offer a jackpot that gradually increases as players are active on the slot. These can be single machines where the jackpot rises only on that slot. But they can also be networks where the jackpot grows across the entire network. These networks can span a single casino or multiple casinos. Megabucks is an example of a game that can be found in several casinos.

These games use a small percentage of each bet that goes into the jackpot. As a result, the jackpots in these games grow to sums that are not possible in other slots.

One feature that all progressive slots offer is a jackpot meter. On which the current amount of the jackpot can be found. It is usually a large and colorful display that can be found above the slot machines. You can watch the jackpot get bigger and bigger as players place their bets.

Online slots also offer a jackpot meter that you can find within the casino software. You can also find these jackpot meters on various websites to find information about these types of games.

Cascade features are also trendy in video slots. Here, the winning combination is cleared, and new pieces fall from the top to generate more wins. So there is no notable structure that is the same for all online video slots, which is precisely what makes it exciting.

Slot Jackpots

All slot machine players share the same dream: to win a jackpot. This is the maximum prize that a slot machine can award. And to win it, two circumstances must be met: firstly, you have to play a jackpot slot. Then you just have to rely on luck. If the symbols that correspond to the jackpot appear on the game line, you’ll win.

To achieve this, many gambling providers decide to endow their machines with big prizes. These are the jackpots, which in some cases can be dizzying, amounting to millions of euros. But not all jackpots are the same, as there are two types of jackpots: fixed and progressive.

  • Fixed slot jackpots: In this type of jackpot, the amount at stake does not vary. It is always the same. It doesn’t matter how many times we play, as the jackpot will not change. We have to bet the maximum amount we can on each spin and dream of hitting the winning line that will give us the jackpot.
  • Progressive slot jackpots: These are the most common, and here the accumulated jackpot grows with each play. A small amount from each play is added to the jackpot distributed at the most unexpected moment. Besides, it is expected that several machines are connected to each other to the same jackpot. So the amount will increase more quickly. The slots jackpot system ensures that no one knows when the jackpot may hit. It may be with only 10 euros in the jackpot. It may even accumulate millions without being distributed, causing the players’ excitement to increase.

Slot Softwares

Providers are a big part of the casino industry. Take a look at the main ones that are out there right now:

  • Evolution Gaming: If there’s a growing software provider name in 2021, it’s Evolution Gaming. With hundreds of first-class slot games under their belt, Evolution has become one of the most desired providers all over Europe. Besides slot games, they’re also leading live casino providers with a fantastic variety in blackjackroulettebaccarat, and innovative new live games.
  • Microgaming: Microgaming is a software provider that has established itself as one of the best casino games providers. Nowadays, the best casinos are overrun with over a thousand games. From blackjack, video slots, video poker, texas hold ’emdragon tiger to roulette. There are over 600 casino games from the provider. This shows how dominant it is in the industry.
  • NetEnt: Net Entertainment Software was founded in 1996 in Europe and offers mainly Flash-based online casino software without download. They claim to be the only online casino software with no financial stake in online casinos to ensure there are no conflicts of interest with their customers. But this claim is perhaps a little exaggerated. 
  • Playtech: This software provider has slots with some of the best and most beautiful online casino designs. These offer many bonus rounds and free spins for players in online casinos. They also include huge prizes from an arsenal of progressive slots. So if you are one of those players who like to play on the go, they have mobile casinos themselves that you can access on your iPhone or Android phone. The gaming provider is known for having one of the most extensive offerings: casino rooms and bingo.
  • Novomatic: Novomatic is one of the oldest online casino providers, having been in business for over 35 years. Online video slots are their primary source of revenue. They have even released deluxe versions for a few of their great-themed slots due to their popularity. The company also has a range of free and easy-to-download e-sports games and other skill-based games such as mah-jongg and baccarat in their arsenal.

FAQ

How does Casinoble evaluate slots sites?

Casinoble is an online casino and slots comparison site, which is dedicated to carefully checking each slot site and the games it offers. We do this by focusing on the essential features of the slots, thus recommending only the best of the best available in 2021. 

If a slot site does not meet the requirements, won’t it be recommended?

No matter what bonus a slots site has to offer, if it doesn’t have a valid license or features on par with the best online casinos, it won’t make our list. Only then can we ensure a safe and memorable gaming experience.

When do you know a slot is good?

Slots can have it all, and knowing when a slot is good or not depends on the player’s taste. Of course, there are good and bad games, but the important thing is to know how slots perform on paper. This makes it easier to determine whether a slot fits what you are looking for or not.

Why are online slots so famous?

Because they have the most comprehensive range of bonuses, themes, prizes, music, and technological innovations, they are the most advanced internet gaming area, thanks to the enormous demand. They are also fast and fun games that can be played anywhere in the world.

When should I look for a slot bonus?

A bonus is convenient for a slot game as long as you know how to use it. Thousands of slot sites offer bonuses of all kinds, but if they don’t match your gaming habits, then they are of no use to you. Always look for a bonus that you can use in your favorite games to fulfill the wagering requirement.

Who are the best slot software providers?

The most famous names in the industry are undoubtedly Microgaming, Evolution Gaming, Playtech, NetEnt, and Novomatic. Not only do these providers have a long history in slots gaming, but they have also managed to keep up with player demand.

Where can I find the best slots in Ireland?

If you’re interested in finding the best slots or bonus slots in Ireland, then we recommend you take a look at our list of slots sites on Casinoble to see which ones will be featured in 2021.

What are the most famous slots in history?

Among the most famous slots in history are undoubtedly Starburst, Divine Fortune, Legacy of Egypt, Gonzo’s Quest, Jack Hammer 2, Immortal Romance, Thunderstruck 2, Mega Moolah, and Mega Fortune Dreams Jackpot.

Are slots safe to play?

Although there is sometimes an assumption that slots are rigged, the truth is that they are some of the safest games at online casinos. Thanks to the various licenses and authorities, slots have mechanisms in place to protect every player.

Will I make money playing slots?

That depends on the luck of the player. Even so, slots are not meant to make you rich but to entertain you. But even so, there have been many people who have won huge prizes that have reached millions of euros.