Online Slot Casinos | Best EU Casino Slots Online, 2022

When it comes to playing online slots for real money, every player has their own distinct taste and preferences. Some prefer classic real money slots, while others are drawn to jackpot slot machines or those games with dozens of bonus rounds, modern graphics, and bonus features with a high win potential, among other things.

Each casino site listed below offers (at least) 2,500 real money online slot machines, as well as a welcome bonus, fast withdrawals, and complete security. The majority of these sites come from our list of the best EU online casinos.

Note: The number of casino slots and software providers available to you will depend on the country you’re playing from. 

Note: Each of the bonuses offered by the listed online casinos has its own set of terms and conditions, which we strongly advise you to read and understand before making your first real money deposit.

It’s worth also noting that playing free online casino slots is always a good idea before wagering for real. You’ll understand how they work, what to expect from these games and your chances of winning.

Moreover, if you plan to play high variance slots at one of these casinos, you may need to learn more about RTP percentages (%) and volatility levels. This is especially true if you’re new to online slots. This way, it will take you far less time to figure out what types of slots you actually like. As a result, you will be able to focus solely on playing the types of games that suit your needs and preferences.

The Most Popular Online Casino Slots

The list below will provide you with information about the most popular online slots (2022) that are attracting the most attention from casino gaming fans across Europe’s online casino sites (and not only). Each slot game is followed by information about it, such as the developer and the bonus features, so you can get a better idea and choose the best game for you.

Book of Dead by Play’n GO

Play’n Go’s Book of Dead online slot was inspired by Novomatic’s Book of Ra slot game and was released in 2016. They had no idea it would become one of the best European slots online. The base game features 5×3 reels set with 10 pay lines, and the free spins round packs quite a punch with wins of up to 5,000× your stake.

Jammin Jars by Push Gaming

The rather small studio called Push Gaming has a penchant for grid-style slots with high volatility. Quite a few of their games regularly deliver wins exceeding 10,000x the bet. Jammin’ Jars was released in 2018 and has become an absolute player’s favourite. The game features an 8×8 grid with cascading symbols and runs at a 96.83 RTP setting.

Bonanza by Big Time Gaming

The slot game Bonanza was released by Big Time Gaming in December 2016. Thanks to its unique Megaways game engine, with six reels each, filled with up to seven symbols, and a maximum of 117,649 ways to win, it has been quite popular among players in the casino community. You can play this legendary slot game on all the best online casinos.

Deadwood by NoLimit City

Deadwood is one of the most volatile online slots developed by NoLimit City, with a maximum payout of 13,950 times your bet. It runs at various RTP settings, including 96.02-96.03% and 94.14-94.15% across different online casino sites. Be sure you play the highest one.

Dead or Alive 2 by NetEnt

The sequel to the acclaimed NetEnt slot, Dead or Alive 2, debuted in March 2019 and has since been the top non-progressive slot for largest wins. The game has the potential to pay 111,111 your bet in a single free spins round and has done so several times since its release.

Money Train 2 by Relax Gaming

Money Train is a popular bonus buy game, as well as a slot with a big win potential of up to 50,000x your stake, and it includes the Money Cart Bonus with Collector, Payer, and Sniper. The game can be found at any of the best online slot sites.

Razor Shark by Push Gaming

Razor Shark is one of the top online slots from Push Gaming that will test your nerves as well as your luck. The slot features a 5 × 4 layout with 20 pay lines and offers an RTP of 96.7 per cent. Observation of the highest win on this slot was 85,475×.

King Kong Cash by Blueprint Gaming

King Kong Cash is medium volatility, one of the best online slots developed by Blueprint Gaming, a leading slot development company based in the UK. This slot game has 5 reels, 3 rows, and 20 pay lines, and features the bonus games with free spins, wild symbols, and a whole array of other features.

Lucky Lady’s Charm Deluxe by Novomatic

The Lucky Lady’s Charm Deluxe slot machine is a five-reel, ten-payline slot game that became extremely popular after it was released by Novomatic in 2010 and made available in real casinos. The theme of the slot is fantasy, mystic female, and the colour scheme ranges from pink to smooth cherry red. The Lucky Lady symbol substitutes all other symbols except scatters, and when it appears on a winning combination, the prize is doubled.

Most players are aware that there are numerous variations of online slots, so let us introduce you to some of the most popular ones available at the casino sites listed on this page. Video slots are the most popular type of online casino slots in general. They have the highest payouts after the jackpot slots and are readily available on laptops, desktop computers, as well as all mobile casino sites.

Different Types of Online Slots

Online slot games are available in a wide range of types, providing both novice and experienced slot players with a plethora of options when it comes to their preferred games:

• Video Slots
• Classic Slots
• Megaways™ Slots
• Cluster Type Slots
• Branded Slots
• Progressive Jackpot Slots
• Virtual Reality Slots

The following section will go over some more details.

Top Rated Online Slot Providers

When it comes to online slot machines, each of the casino game developers strives to have their own distinct style, theme, features, and mechanics, and their creations are always eagerly anticipated:

Novomatic:

This iGaming company has been around since 1980. Today Novomatic is the leading gaming technology group in Europe that constantly releases new real money slot games for online and land-based casinos. The Novomatic slots are prevalent among players who like playing no-nonsense games with great potential bonus features. Its top games are the legendary Book of Ra Deluxe, Lucky Lady’s Charm Deluxe, Dolphin’s Pearl Deluxe, Lord of the Ocean, Captain Venture, and more.

NetEnt:

NetEnt is the next company on our list, and they’ve been around since 1996. The company creates truly immersive slots by combining top-notch graphics with realistic sound effects, and they’ve become known as one of the best online slot developers to date. NetEnt’s most popular slots are considered Dead or Alive, Starburst, Gonzo’s Quest, Hall of Gods, Guns N’ Roses, and Divine Fortune.

Microgaming:

Microgaming’s portfolio covers a huge amount of games, from classic slot machines to video slots, progressive jackpots and table games. Some of the legendary are Mega Moolah, Major Millions, Immortal Romance, Thunderstruck, Game of Thrones, Leagues of Fortune, and Break da Bank. They all come with unique features such as wilds, scatters, bonus rounds and free spins.

Thunderkick:

This is one of the smaller but very innovative online slot game developers with offices based in Sweden and Malta. They release some excellent online slots worth checking out and playing. Some of our favourite slots from Thunderkick include Sword of Khans, Carnival Queen, Rocket Fellas and Flame Busters.

Nolimit City:

This developer is best known for its highly volatile gameplay, extreme variance, massive potential payouts, and complex math model-based online slots that include some of the most advanced slot bonus features and appealing designs. Deadwood, Tombstone, San Quentin, Punk Rocker, and Mental are just a few of the legendary slot games released by Nolimit City.

Play’n GO:

This slot game developer is best known for creating slick, high-quality online slots, and they are constantly releasing new games worth checking out (Gemmix 2, Hugo Carts, ZZ Top Roadside). Book of Dead, Reactoonz, Sweet Alchemy, Moon Princess, Pimped, Cloud Quest, and other popular Playn GO slots can be found at any of the best online casinos, such as CasinoFriday, N1 Casino, and Bitstarz.

Big Time Gaming:

We all know the slot Bonanza! This Australian-based slot developer was the first to introduce Megaway Slots™. Some of the BTG online slots we like are Lil Devil, Opal Fruits, The Final Countdown, and Who Wants to Be a Millionaire. You can try their games on the best online slot sites listed above.

Scientific Games:

Las Vegas-based Scientific Games Corporation is recognized as a global leader in providing casino systems, lottery and online gambling software across the globe. Scientific Games was founded in 1973, and it has constantly been developing new products for land-based and online casinos since then.

Blueprint Gaming:

Blueprint Gaming is considered the best UK online slots developer, established in 2001 and has since become one of the leading suppliers of real money slots online. Blueprint Gaming’s portfolio includes classic, megaways and branded slots featuring some of TV’s most famous characters, such as Rick and Morty™ and Ted™. You can find any of their games at online casinos in Ireland, the UK, and most land-based gambling establishments.

Yggdrasil Gaming:

Yggdrasil was founded by Fredrik Elmqvist, a former executive of NetEntertainment, in 2013. They are best known for Vikings Go To Hell, Orient Express, Nirvana, Valley Of The Gods, Golden Fish Tank and Cazino Zeppelin. The provider is dedicated to creating fun, engaging and high-quality games across Europe and online gambling establishments worldwide.

Real Money Slot Tournaments

A real money slot tournament is a popular type of competition among players of online slot machines. They can play their favourite slot games while also having the chance to win exciting prizes if they reach the top of the leaderboard. The majority of races and tournaments are free to enter, and the prizes are cash, casino bonuses, or extra free spins on selected games. Some slot casinos have gone a step further by offering buy-in races in which players compete for real money and, in most cases, larger prizes than in free races.

The tournaments work as follows:

• You compete to complete the most spins in a limited time
• You score the highest equalized win measured in a bet multiplier
• You collect special symbols in the fewest possible spins

Now you know what entertainment options await you when visiting our listed slots sites. Further down, you’ll find out about what iGaming companies are responsible for creating your favourite games.

Try Slots for Fun (Free) Before Playing for Real

Most of the slot sites allow you to play free slots without having to download or register. All you have to do is choose a slot game that you enjoy and play with fun credits. As a result, you will learn the game rules, become acquainted with the pay tables and game mechanics, and understand what to expect when you play slots for real money.

Note:  Any winnings in free play are not real money. If you want to play slots for real money, you must first register at an online casino and make a deposit. The best slot sites always offer a wide range of payment options to their customers, including debit/credit cards, e-wallets, prepaid cards, cryptocurrency, bank transfers, and others, so you should have no trouble making a deposit.

Best Paying Slots: Finding the Right Game for You

The RTP or return to the player is an excellent guide to finding the best paying slots. This is a statistical number on how much a game will pay back over a large sample of spins. Simulations for certification purposes are usually done over billions of spins to determine the average return.

• The higher the RTP percentage, the more money you can win! Obviously, it can never be 100% because all online slots have a house edge that generates revenue for casino operators and game providers.

To get the most bang for your buck, look for slots with high RTPs and avoid those with low RTPs. NetEnt slots, for example, have an RTP ranging from 93 to 98%, whereas Microgaming slots have an RTP ranging from 88 to 98%. And, because an additional percentage is reserved for the jackpot, progressive jackpot games typically have the lowest RTP.

The Difference Between Low Volatility and High Volatility Slots

Nowadays, it is common for game providers to state the RTP of their games. Nonetheless, some companies actually disclose more factual information, such as volatility. You might be wondering what volatility is right now. In simple terms, it is a measure of how wins are distributed across a large sample of spins on a specific slot machine.

In general, a low volatility slot can give you more playtime with small wins, whereas a high volatility slot gives you less playtime but more significant big-win potential.

Going through the paytable is the best way to determine slot volatility. If the difference in payout between hitting two and five top symbols is significant, the slot is most likely high volatility. The inverse is true for low volatility slot games. The following example shows one of each.

The Best Way to Win at Online Slots

If anyone ever tries to convince you that they can give you the best strategy to play slots, you would be well-advised to avoid these people. It simply does not exist. Online slots are games of chance, where pure luck determines the outcome. Hence, when playing slots, you should not worry about how to win but how not to lose your balance.

• The best we can do is set a budget that we want to spend and adjust the bet size to a number that will give us the playtime we are looking for and play at a risk level we feel comfortable with. If you’ve made some good wins that elevate your balance, you can try increasing your bets; this way, you don’t lose your initial deposit but a portion of your winnings. Remember to start reducing it again if it fails to produce another good win.
• The other tip we experienced players can give is to avoid staying too long in the same slot. We all have our favourites! But we usually have the “false” feeling that we know how the slot behaves and that big win could be just around to corner.
• If the slot feels “cold,” try a different one and change it again if you get the same bad feeling. Simply avoid “hammering” the same slot in the expectation that it will pay out big at some point.

Bankroll Management When Playing Online Slots

The golden rule is to set a budget for the session or even a single game and stick to it under any circumstances. Determine how much money you can afford to lose and how much you would need to cash out. Whatever the outcome, the game session must come to an end!

Here are some of the reasons:

• When you get a big win, your natural instinct is to keep betting larger and larger amounts in the hopes of getting that one really big win
• If you lose a significant amount of money, your instinct is to keep playing in order to recoup it as soon as possible through additional bets

Losses and wins can both impair your judgement. The desire to recoup losses, or the euphoria that follows a big win, can easily lead to even bigger losses!

Online Slots to Avoid

After more than two decades of internet existence, we’ve all learned that anything related to money attracts scammers. It is the same with online casino slots and games. Fortunately, there is a simple way to tell whether an online slot is genuine or a forgery. Simply launch a game in demo mode and proceed as follows:

• Right-click on the game window and select “Inspect”
• Once an additional screen appears, choose “Network”

Now you should see the server address from which the game loads.

Each game developer has its own server, and by knowing its name, you can tell whether the one you see is legitimate or not (all properly licenced slot games are hosted on the game provider’s dedicated servers).

Note: If multiple slots from different software providers are connected to the same server, it is very likely that the games are bogus.

Frequently Asked Questions, Answers and Tips

The following section contains answers to common questions that players have about online slots and tips on getting the most out of your experience playing slots online.

What are the best slots to play?

This is a difficult question to answer. It all depends on what you’re looking for and your personal preferences. If you want to increase your chances of winning big, look for slots with high volatility or even “Bonus Buy Slots.” These slots generally offer fewer but larger payouts. If you want a slot that will give you more small and medium-sized wins, play one that has low or medium volatility.

It may also depend on your emotional state of mind. If you just want to relax and have some fun, play the low-volatility slots; if you want to take a risk, play the high-volatility slots.

Finally, it is determined by your financial situation. If you have a limited financial capacity, you should stick to low-volatility slots, and if you have a bigger budget, you can opt to take more chances and play high-volatility slots.

What are the best online slots sites?

The best online slots sites are those that provide a diverse range of popular slots to players from various software providers without lowering RTPs, as well as generous deposit bonuses and reasonable size of restricted slots when using the welcome bonus, as well as knowledgeable and helpful customer service. You can find these sites on our list.

Are online slot machines rigged?

There is no factual evidence that online slots are rigged. However, any player who has played slots for a while will be able to tell you a conspiracy theory, a dubious spin sequence or chain of events in their session, or what they consider clear proof of games being rigged. In the player community, this is referred to as wearing a tinfoil hat. Because most, if not all, of our experiences, are subjective and are not based on data or large enough samples.

Here’s an example of a 2019 medium-volatility slot where the developer ran simulations totalling more than 200 billion spins before certification:

• Big Wins: 15x – 1 in 84
• Super Big Wins: 40x – 1 in 189
• Mega Wins: 70x – 1 in 444
• Epic Wins: 100x – 1 in 997

This is done to collect large enough samples to provide reliable average data on how a slot’s math model will perform in the long run and to ensure that the game achieves the advertised RTP (return to player).

The distribution and frequency of larger wins on the slot machine can also be seen here. That does not mean you will hit them at those times.

Modern online casino slots are based on sophisticated mathematical models. To determine your spin result, an RNG (random number generator) result is called up for each spin. You could spin the reels thousands of times and still not hit a super or mega win, let alone an epic win.

However, if Lady Luck is on your side, you might be able to hit them all in a row.

How do online casino slots work?

The vast majority of online casino slots work on a similar basis. In a nutshell, the game software employs a random number generator (RNG) to generate thousands, if not millions, of results per second. Each outcome is associated with a symbol combination on the reels.

When you press the spin button, the RNG software selects a result at random from its database and maps it onto the symbols on the reels. The speed at which the reels stop is determined by the RNG’s ability to generate new results.

What are the most popular slots?

The most popular slots typically have the largest jackpots. This is because players are drawn to the prospect of winning a life-changing sum of money. The most popular slots in this category are Mega Moolah and Mega Fortune.

Starburst, Dead or Alive 2, Gonzo’s Quest, The Dog House, and Book of Dead are also popular slots. These are all well-designed games with intriguing themes and gameplay elements.

What are the risks of playing online slots?

The biggest risk is becoming addicted and losing a lot of money. This is why it is critical to create and stick to a budget. It is also important to remember that the odds are always stacked against you. You should never expect to win in the long run because the house always has a mathematical advantage.

Another possibility is that you might end up playing rigged or fake slot machines. This is why it is critical to play only at reputable online casinos that are properly licensed to operate, use random number generators (RNGs) to produce spin results and run only certified games by independent testing houses such as BMM Testlabs, Gaming Associates Europe Ltd, Global Lab Limited, Trisigma B.V., or iTech Labs.

What are the odds of winning at online slots?

The odds of winning at online slots are determined by the RTP of the game and its volatility. The higher volatility, the fewer wins you can expect, but the wins could be bigger. Lower volatility results in more frequent but smaller wins. In general, the odds are always stacked against you, but there is always the possibility of a big win.

What are the best strategies for playing online slots?

Setting a budget and sticking to it is the best strategy! It is also important to remember that the odds are always against you, so you should never expect to win in the long run. Another good strategy is to choose slots with high RTPs and low volatility. This will give you a better chance of winning more often, even though the wins will be small.

What is the difference between progressive and non-progressive slots?

Progressive slots have a jackpot that increases gradually as more people play the game. Non-progressive slots have a fixed jackpot that does not change.

What is the difference between video slots and classic slots?

Video slots are more visually appealing and complex than traditional slots, with additional features such as bonus games and a variety of bonus rounds, walking wilds, sticky wilds, spreading wilds, dropping symbols and so on. Classic slots are simpler, with fewer paylines, reels, and features.

Where can I find the best bonuses for playing online slots?

On our website, you can find many excellent quality bonuses for playing online slots. See our list of the best casinos with generous bonuses for players in Europe to make a great start.

Where can I play online casino slots for free?

You can play online casino slots for free and learn more about the game of your choice by visiting the official websites of its developers, like NetEnt, Play’n GO, Thunderkick, or others. You can also play free slot games at any listed online casino sites.

Keep in mind that playing free online slots will not allow you to win real money. Free online slots are only for testing out the games and entertainment purposes.

What is the best time of day to play online slots?

We feel there is no optimal time to play online slots. Some players, however, believe it is after midnight.

What are wagering requirements?

Wagering requirements are the number of times you need to play through the bonus or winnings from free spins before you can withdraw them. For example, if a slots bonus has a wagering requirement of 30x, it means you’ll need to play through the bonus or winnings 30 times before they can be withdrawn.

If you play with free spins, any winnings will be subject to the same wagering requirements. However, this is an example of a standard rule that can vary from casino to casino, so be sure to read the bonus terms and conditions before you start playing for real money.

Conclusion

Online slot games should be seen as a form of entertainment that will cost you money. Therefore, you must determine the maximum amount you are willing to spend and never cross that line. Equally important is setting a win limit to get up and walk away instead of squandering it back. You have to remember that you cannot always win, that the house always has an edge and that you can never predict what will happen in a game. If it hasn’t been made clear before, sensible bankroll management really is one of the most important things when playing online slots.