Find Amazing Slots at Online Casinos

You know the feeling when you find those perfect online slots. It’s a feeling of excitement, anticipation, and satisfaction all rolled into one. Every casino player has something different in mind when they picture their favourite online slots. Whether it’s a special feature, game mechanic, bonus round, volatility, or payout percentage – there’s always something that keeps us going back for more.

Many players tend to be drawn to a couple of popular games. It’s always good to have a selection of slots to rotate between. This keeps things fresh and exciting. And, it also prevents us from staying on the same online slot for hours after it has been on a not-so-favourable streak.

But how do we find the top alternatives? It takes some research and a bit of luck. Our aim is to help you on your way to finding the best online slots to suit your preferences. We’ll also point you to the most rewarding casinos that offer the greatest slots of all time.

Tried and Tested Online Slots

Online slot machines can be played on your computer, tablet or smartphone at any time, anywhere in the world. They work the same as land-based slots do: you deposit money, press the play button, and have fun playing the game.

It’s this simplicity that makes slot machines so popular. And since we don’t have to head down to a land-based venue anymore in order to play, it’s that much easier to enjoy the best online slots whenever we feel like it.

Let’s look at some of the biggest hits in iGaming. Placing a focus on what it is about each of the great slot machines that makes it so popular will help us understand a bit about the different features of online slots.

The most popular online slots are ranked differently for various regions. There are many reasons for this. For example, some game providers aren’t licensed to offer slots in certain countries. So, a game that is wildly popular in one region may not be very accessible in another. Themes can also be a determining factor when it comes to the popularity of slots in different regions.

However, there are certain casino games that definitely stand out from the crowd. These online slots are globally regarded as the best of the best. Players from all corners of the world flock to them time and again.

Here are some of the most popular video slots along with the game providers that created them:

No doubt you’ve heard of some, if not all, of these video slots. You’re in for a treat if you haven’t. These games serve up everything you could ask for on a silver platter: adventure, bonuses, wild symbols, and free spins galore. These are the key aspects of the best online slots after all.

Best online slots themes

How to Play Online Slots – A Crash Course

Most slot machines operate in the same way. The symbols are arranged in vertical rows called reels. The reels spin and stop to display a random series of symbols. You win by landing specific combinations of symbols on a payline.

Before spinning the reels for the first time, you need to set the amount you will be betting per spin. Here’s how you would get started on an online slot:

  1. Sign up for one of the safe online casinos recommended on this site.
  2. Deposit money at the casino and claim a bonus if you like.
  3. Choose an online slot machine from the casino’s games lobby.
  4. Read through the instructions and review the payout table.
  5. Set the coin value.
  6. Select the number of paylines you want to bet on.
  7. Check your bet size to ensure you are happy with it.
  8. Press the Spin/Play button and watch the reels spin.

When playing slot machines, the aim is to land matching symbols in a row to win multiples of the amounts that you bet. That’s the gist of it but modern online slots have variations on this model.

You can click on the paytable on each game to find out what the most valuable symbols are and which paylines award the higher wins. An online slot game has a fixed number of paylines, which in classic games can be as low as 5 or 10, or over 10,000 of some of the newer online slots.

In general, slot machines pay from left to right for matching symbols. However, some slot machines have a ‘Win Both Ways’ feature, which means that matching symbols are counted in both directions.


Frequently asked questions about the Best Online Slots

Can you win money playing online slots?

Yes, you can win money on all real money online slot machines offered by reputable online casinos. There is no limit to the amount you can win.

Which online slots pay out the highest?

The highest paying online slots are those that offer progressive jackpots because these slots offer winning potential that frequently exceed millions of euros. One spin on a progressive slot could make you a millionaire.

Where can I find the best online slots? 

You can find the best slots at the online casinos recommended on this site. Have a look through the casinos we affiliate with and choose an offer that appeals to you.

Are the outcomes of online slots really random?

Yes, the outcomes of RNG online slots are as random as they can be. Random number generators work with the most sophisticated algorithms available to us to ensure that online slots provide random and fair results.

Are online slots safe? 

Slots that are offered by reliable online casinos are 100% safe. These casinos make use of slots created by the best game developers. The casinos are also regulated by gambling authorities that ensure the safety of the online slots.

What are high RTP online slots?

All games that offer a return to player of at least 96% are considered slots with a high RTP. Nowadays, you can find many online slots that have RTPs of 97% and above. We listed many of these on this page for you to enjoy.

Can I play online slots for free?

Yes, most online slots can be played for free. You won’t be able to win real money if you are playing for free but you will be able to test out the slots. If you want to increase the excitement, claim a free bonus and try the online slots.

Where can I get a bonus to play the best online slots?

You can find plenty of casino bonuses with the best bonus terms right here at We spend hours looking for the best bonuses in the business so that you don’t have to.

The Winning Symbols in Online Slots

Most of the symbols that feature in a slot game are based on the overall theme of the online slot. The most important part of many slot machine games is the bonus round , which can be unlocked by scatter symbols that can land anywhere on the reels. Again, there are variations on the model for unlocking bonus rounds.

Common symbols that you’ll find on slot machines are 9, 10, J, Q, K, and A. These are known as the minors because they usually pay the lowest. On the other end of the spectrum are the royal symbols. These have higher winning values and pay out more. Royal symbols vary between online slots and revolve around the theme.

Most modern online video slots also incorporate special symbols that perform specific functions in the game. Here’s a breakdown of special symbols that you’ll find on most online video slots:

Huge Winnings with Online Jackpot Slots and Progressive Slots

If you want to win a lot of money on online slots – and let’s face it, who doesn’t – then there are a couple of steps you can take towards winning that enticing jackpot. You can play slots with progressive jackpots or opt for the slot machines that have above average potential payouts.

To give you an idea of the winning potential of progressive slots, here are two of the biggest online slots progressive jackpot payouts ever recorded:

The good news is that there are always progressive jackpots to be found in online casinos. Here are some of the most popular progressive jackpot online slots that you can look forward to, created by industry-leading game providers:

Progressive Best online slots

How to Pick the Perfect Online Slot

There are a number of key factors that can influence your decision when trying to find the ideal online slot for you. The first step is to identify your priorities and then find the games that match them.

Here are things to consider:

What the RTP Tells You about an Online Slot

An RTP tells you how much of all the money wagered on an online slot will be paid back to players over a period of time. The time period considered in the RTP calculation is in the long run and spans over millions of bets – so don’t be surprised when your slot session doesn’t pay you out according to the RTP stated.

Every slot machine has its own RTP. The RTP is expressed as a percentage. The higher the percentage, the more often you can win money over a longer period of time. However, the value is a theoretical statistical calculation that cannot be taken literally. An RTP will give you the approximate overall estimate for the slot or game in the very long run. It cannot predict the outcome of your experience.

Here are some of the best online slots with high RTP values that we can’t get enough of:

If you’re going to play online slots based on their RTPs, always review a game’s RTP once you have opened it. You can view it by clicking on the information icon once the game has loaded. This is a precautionary step because some online slots are developed with a variable RTP range.

Variable RTP ranges give online casinos the ability to set the RTP values to their liking. The best online casinos will leave the return percentages at higher values. But you will get some online casinos that do the opposite.

Fortunately, casinos that are licensed by proper authorities, such as the Malta Gaming Authority, will never set their RTP rates at less than 84%. They usually keep them much higher, even on the highest RTP setting. You can bet that the sites listed on have been vetted to validate that they are properly licensed.

What is the Volatility of an Online Slot?

The word volatility, as applied to an online slot, refers to the level of risk inherent in the game. It is used to describe how often and how much you can win during your gaming sessions. Games with high volatility can involve long periods of drought with the occasional big win. High volatility online slots also have the ability to go on a winning streak and pay out a large number of big wins in a short period of time.

On the other hand, games with low volatility typically pay out smaller wins on a more regular basis. Low volatility games mean less risk. The payouts on low volatility slots are smaller but much more frequent and there won’t be much time to get bored when playing this type of game.

Small wins pop up every few spins and you are constantly entertained by all of the bonus features and animations that are keeping your attention. That’s not to say that big wins are impossible on low volatility online slots – they can, and will, happen. Volatility is also referred to as variance when speaking about online slots.

Pro Tip: You can find out the volatility of the best online slots by checking the game provider’s website or by testing the game in demo mode. Playing slots for free in demo mode will help you determine if it pays out often or not.

How the Best Online Slots are Kept Fair

There’s a myth that all online slots are rigged. Of course, you do get online slots that are offered by dubious sites. But we’re not talking about those. We recommend that you steer clear of those sites and stick to the online casinos that we recommend. The outcomes of the online slots at these safe online casinos are determined by random number generators (RNGs).

A random number generator is a computer algorithm that constantly generates a complex series of numbers that are used to determine the outcomes of slot machines and other casino games. The randomness achieved by this method is globally viewed as more than adequate for online gambling.

With reliable online casino software, the RNG is built into every single game and is always operating. Here are a few interesting facts that give some insight on exactly how RNGs ensure the fairness of online slots:

Tips for Maximising your Winning Potential at Online Slots

At SPCasinos, we spend hundreds of hours playing online slots. While we can’t guarantee that any of the tips below will help you win your next massive jackpot, we can tell you that we use some of these tricks when we play online.

You can use them or not, it’s completely up to you:

  1. Select games with high RTP values. These games have the lowest house edge and offer you the best odds.
  2. Use free spins. Online casinos are always giving away free spins to promote new games, reward you for playing, or as part of a larger loyalty program. Make sure to take advantage of them to try new online slots and broaden your horizons. You can find some great offers on this page.
  3. If you’re chasing huge jackpots, keep an eye on which jackpots haven’t been won recently. Progressive online slots very seldom pay out the progressive jackpot twice in a row.
  4. Sign up at new casinos. Many online casinos offer welcome bonuses with free spins or deposit offers. You can use the free spins or extra bonus money to try new games. We have listed a number of the best welcome bonuses on this site that you can take advantage of.
  5. Select the maximum number of paylines when you bet on slots. It’s much more fun when you win combinations on every spin and regularly access the bonus games. That is why we recommend lowering the value of each coin and increasing the number of paylines you play on each spin. Of course, if you have a high bank roll, choose whatever bet size you want. Larger bets mean higher jackpots after all.

Innovative New Online Slots

Dozens of slot machine games are released every week. Game providers are constantly developing new titles for players to enjoy. This week’s best slot game could pale in comparison to the games coming out next week because game developers are constantly creating new features and mechanics for online slots.

Some of the most recent developments in the gameplay-style of online slots include:

Cascading Wins: 

Cascading wins are also referred to as Avalanche wins. Online slots that incorporate this feature will spin again if you land a winning combination, and you don’t have to pay for the additional spin. However, you still reap the rewards if you land a winning combination on the successive free spin. Some of the most popular Cascading Wins online slots are:

When you land a winning combo on a Cascading slot, you are paid your winnings and then the winning symbols disappear to make way for new symbols that typically fall from the top of the screen.

Cluster Pays: 

Many of the best online slots that have recently been released feature the cluster pay mechanic. These slots count winning combinations based on matching symbols that land beside each other. If you’ve ever played Gems or Bejewelled then you know what we mean. Some of the most popular Cluster Pays online slots are:

Instead of paying winning combinations from left to right, or right to left, Cluster Pays online slots award wins on clusters of symbols.

Megaways Slots: 

Most slots offer between 10 and 100 paylines that you can bet on. Megaways slots are a completely different story. On Megaways slots, you can’t choose the number of paylines you want to bet on. The game is set with 117,659 possible winning paylines. As with all online slot mechanics, there are variations on this number. Some of the most notable Megaways online slots are:

Megaways slots have become increasingly popular due to their sophisticated graphics and exciting gameplay.

Best online slots megaways

Other Online Slot Innovations

There are so many different features and mechanics to discuss that we could keep the conversation going for days. If you haven’t started exploring them yet, it’s about time you do. Here are a few other prominent favourites that game developers are incorporating into the best online slots at the moment:

There are so many different features and mechanics to discuss that we could keep the conversation going for days. If you haven’t started exploring them yet, it’s about time you do. Here are a few other prominent favourites that game developers are incorporating into the best online slots at the moment:

Playing Top Online Slots for Free

You can enjoy all the benefits of the best online slots without risking a dime. Well, not all of the benefits. When you play for free you won’t be able to win real money. However, playing the best online slots for free is still a great way to try new games.

If you want to add a bit of spice to the party, you can play for free without depositing your own funds when you claim no deposit bonuses or no deposit free spins at online casinos. Any winnings you make while you are playing with free bonus money are usually capped.

Online casinos will commonly state that any winnings received with free bonus money or spins is limited to a specific withdrawal value. So you won’t be able to withdraw all your winnings in most cases, but it still beats playing with zero possibility of winning real money.

You could also take up deposit offers at online casinos to increase your play time and enhance your opportunity to try some of the best online slots available. Having extra funds in your account allows you to venture out a bit more – and who knows, you might find a new favourite along the way.

Casinos use bonuses as a way to entice players to log into their website and continue playing after registering. Bonuses are usually offered as a percentage of a player’s deposit but can also take the form of no deposit bonuses. Either way, you cannot simply withdraw a casino bonus as you have to wager a certain amount before you can withdraw your bonus money.

It’s the same as with no deposit bonuses; however the wagering requirements on deposit bonuses are usually lower than on no deposit bonuses.

We recommend choosing any of the bonuses on this page since we have used them ourselves and can confirm that they were totally worth it. These casinos are safe and transparent. The terms of all the bonuses offered can be found in the terms and conditions of each casino. Since they are all licensed by reputable gambling authorities, there are no hidden terms.

In addition to all the games we’ve already mentioned on this page, here are a few more of the best online slots that you’ll find at these online casinos:

All the Best Online Slots are Available on Mobile

If you like playing games on your mobile phone rather than on a desktop computer, you’ll have no trouble finding fantastic online slots to enjoy. We can easily play slots on smartphones and tablets running Android and iOS operating systems. Some of the best online casinos are also available on some Blackberry and Windows handheld devices.

Since most online casinos are totally compatible with mobile devices, we refer to them as mobile casinos when playing on mobile.

Depending on which mobile casino you choose, you may not even have to download and install any special software to play the games, deposit and withdraw, chat to customer support, or view your transaction history. Even the live dealer games are available on mobile without any download required.

There are a few online casinos out there that are staying with the download method – on handheld, desktop, and laptop devices. Some players prefer downloading and installing software, and there’s nothing wrong with that. We also enjoy it sometimes.

We have a selection of online casinos available, offering the best online slots, that provide download links for iOS, Android, and Windows devices. So have a look around the site if you’re on the market for those. Visit our Best Casino Apps page for more information.