Top 100 Best Online Slots

Want to know which slot games are all-time player favorites? Check out this rating. The scoring is done by combining multiple historical slot popularity reports provided by gambling sites.

The rating may change every year once casinos submit the latest data. The biggest advantage of this slot rating is that it’s based on actual data as we don’t just guess how games perform.

100 most popular slots

Want to know which slot games are all-time player favorites? Check out this rating. The scoring is done by combining multiple historical slot popularity reports provided by gambling sites.

The rating may change every year once casinos submit the latest data. The biggest advantage of this slot rating is that it’s based on actual data as we don’t just guess how games perform.

Zeus vs Hades – Gods of War Free Play in Demo Mode
Zeus vs Hades – Gods of War


RTP: 96.07%, Max Win: x15000, Volatility: High

Gates of Olympus 1000 Free Play in Demo Mode
Gates of Olympus 1000


RTP: 96.50%, Max Win: x5000, Volatility: High

Big Bass Splash Free Play in Demo Mode
Big Bass Splash

23.06.2022, ,

RTP: 96.71%, Max Win: x5000, Volatility: High

Features: , , , ,
Big Bass Christmas Bash Free Play in Demo Mode
Big Bass Christmas Bash

23.11.2023, ,

RTP: 96.71%, Max Win: x5000, Volatility: High

Sugar Rush Xmas Free Play in Demo Mode
Sugar Rush Xmas


RTP: 96.50%, Max Win: x5000, Volatility: High

Sugar Rush Free Play in Demo Mode
Sugar Rush


RTP: 96.50%, Max Win: x5000, Volatility: High

Release the Kraken 2 Free Play in Demo Mode
Release the Kraken 2


RTP: 96.5%, Max Win: x5000, Volatility: High

Mummyland Treasures Free Play in Demo Mode
Mummyland Treasures


RTP: 96.36%, Max Win: x5000, Volatility: High

Big Bass Amazon Xtreme Free Play in Demo Mode
Big Bass Amazon Xtreme

19.06.2023, ,

RTP: 96.07%, Max Win: x10000, Volatility: High

Big Bamboo Free Play in Demo Mode
Big Bamboo


RTP: 96.13%, Max Win: x50000, Volatility: High

Big Bass Halloween Free Play in Demo Mode
Big Bass Halloween

23.10.2023, ,

RTP: 96.04%, Max Win: x2100, Volatility: Average

Razor Returns Free Play in Demo Mode
Razor Returns


RTP: 96.55%, Max Win: x100000, Volatility: High

Sweet Bonanza Free Play in Demo Mode
Sweet Bonanza


RTP: 96.51%, Max Win: x21100, Volatility: Above average

The Dog House Free Play in Demo Mode
The Dog House


RTP: 96.51%, Max Win: x6750, Volatility: High

Starlight Princess 1000 Free Play in Demo Mode
Starlight Princess 1000


RTP: 95%, Max Win: x15000, Volatility: High

Rich Wilde and the Book of Dead Free Play in Demo Mode
Rich Wilde and the Book of Dead


RTP: 96.21%, Max Win: x5000, Volatility: High

Legacy of Dead Free Play in Demo Mode
Legacy of Dead


RTP: 96.58%, Max Win: x5000, Volatility: High

Le Bandit Free Play in Demo Mode
Le Bandit


RTP: 96.34%, Max Win: x10000, Volatility: High

Features: ,
Candy Jar Clusters Free Play in Demo Mode
Candy Jar Clusters


RTP: 96.08%, Max Win: x10000, Volatility: High

Retro Tapes Free Play in Demo Mode
Retro Tapes


RTP: 96.47%, Max Win: x10000, Volatility: High

Fire Stampede Free Play in Demo Mode
Fire Stampede


RTP: 96%, Max Win: x4275, Volatility: High

Rise of Olympus 100 Free Play in Demo Mode
Rise of Olympus 100


Max Win: x15000, Volatility: High

Coin Strike: Hold and Win Free Play in Demo Mode
Coin Strike: Hold and Win


RTP: 95.66%, Max Win: x5150, Volatility: High

Fortune of Giza Free Play in Demo Mode
Fortune of Giza


RTP: 96.48%, Max Win: x6750, Volatility: High

Xmas Drop Free Play in Demo Mode
Xmas Drop


RTP: 96.22%, Max Win: x12500, Volatility: Average

Money Train 3 Free Play in Demo Mode
Money Train 3


RTP: 96.10%, Max Win: x100000, Volatility: High

Big Bass Bonanza Free Play in Demo Mode
Big Bass Bonanza

03.12.2020, ,

RTP: 96.71%, Max Win: x2100, Volatility: High

Bonanza Billion Free Play in Demo Mode
Bonanza Billion


RTP: 96%, Max Win: x15000, Volatility: High

Displaying 30 of 1076 slots
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Written by: , Founder June 21, 2024 at 4:45PM
Last Updated: June 22, 2024 at 2:11PM ()
Read Time: 13 min.

How to Choose Casino Slots Online

Over the years, multiple studios have created thousands of online slots for online casinos, including some of the best online slot games that have become iconic titles. Uncomplicated or feature-rich, optimized for mobile casinos, all kinds of games can end up in this rating as there’s no single recipe for designing a successful game. With so many choices available, it’s hard to decide which one to play, but that’s when this rating comes in handy. Look through this top 100 slots rating and test some of the games listed on our site. Chances are you’ll enjoy quite a few of them.

Volatility and Payout Percentages

These two are the key slot parameters. The payout percentage (RTP) shows how much gamblers win relative to their wagers. This is a theoretical number that is usually different from the short-term actual return. Millions and even billions of rounds must be played to test the accuracy of the RTP.

All of the best online casino games produced by legitimate game developers are tested by specialized labs to make sure the theoretical return specified by the studios is correct. That’s how players can trust that the outcomes are fair even when a game returns them much less than the theoretical value.

Note that many developers create multiple versions of the same title with every version offering a different RTP. This is a popular trend among slot studios, which is a disappointment for gamblers as they now have to check which version a casino offers every time before launching a game. The issue is that some developers don’t even specify RTP in the game files.

Volatility is one of the most powerful characteristics that explain the nature of the game. It tells players how evenly or unevenly the payouts are spread. In other words, it’s an indicator of the risk level. If we take two extreme volatility values, they will offer two completely different experiences even if they have similar RTP.

  • Low Volatility. Payouts are spread relatively evenly. There are no long losing streaks as wins are regular. To balance off the frequency of payments, developers have to keep a rather small max win potential. Low volatility slots appeal to players who enjoy the experience of spinning the reels and the idea of winning and not chasing huge wins.
  • High Volatility. Payouts are spread unevenly. Players will sometimes have no winnings at all for a long time and this bad luck can suddenly be interrupted by a massive win. Payouts are unpredictable and vary significantly in size. Some of the extreme volatility titles are often highlighted in lists of best slots online because they generally have mouth-watering max wins of 50,000x and even 100,000x and more. So, these are kinds of games for risk lovers.

Number of Paylines

This is another important slot characteristic. Similar symbols ensure payouts but these symbols can’t land chaotically on the screen and instead must be arranged on a specific payline from left to right and sometimes both ways. The paylines can be found in the game paytable.

Most of the best online slots today have a fixed number of lines, meaning there’s no way to activate and deactivate some of them. Just a small number of titles offers adjustable paylines, which is the option to change the number of active lines. But in this case, fewer lines means lower chances of landing a win.

Traditional win lines had long been the only available option before other solutions were introduced. Today there are many alternatives such as Cluster and Ways to Win engines, which are often featured in online slot rankings due to their innovative approach to winning combinations.


Apart from classic fruit machines, almost all slots offer some sort of bonus rounds. Free spins are the most common option, but there are more features. To trigger bonuses, players usually need to land a certain combination of symbols, for instance, three scatters. Sometimes to activate bonuses, players need to collect certain symbols over time.

  • Free spins often offer some extra features that make them more lucrative. For instance, multipliers, more wilds, expanding wilds, mega symbols, etc. are features that can enhance gameplay and are a common attribute of the best online slot games.
  • Pick and Click is another type of bonus. Players are offered a number of icons and have one or multiple picks. If lucky, their selected icons will earn them nice instant payouts. A win is usually guaranteed, but not always and the wrong pick can sometimes lead to the round’s end without any wins.
  • Bonus Gamble is an option that is introduced in some of the best slots games. Gamblers have a choice to get a better deal, but risk losing the bonus game adding more thrill to the game. It’s still quite a rare option.

Special Features

Slots are continuously evolving and there is no lack of features to entertain all sorts of players. Some unique features appear occasionally and only a few of them pass the test of time. We’ll discuss features that have made a significant impact on slot development.

Bonus Buy. It’s the feature that many developers have introduced over the last few years. It gives players a shortcut to the most exciting part of the game. To unlock bonus games at any time, slot fans will have to pay somewhere between 50x to 100x a bet. This is the most common price and it can be as high as 2,000x in some titles.

The feature is prohibited in the UK because it’s believed to increase the danger of developing problem gambling. So, you need to be aware of the potential threat as this feature can indeed be addictive.

Guaranteed Jackpots. It is another relatively recent phenomenon in the slots world. In the case of a traditional growing jackpot, it can be hit at any moment and no one really knows its limits. But guaranteed jackpots have a specific time or amount limit when it must drop. This feature was introduced by Red Tiger Gaming and has become incredibly popular.

Software Developers

Today the competition to produce the best casino slots among game providers is fierce. There are multiple mega-companies and they do not only have to compete with developers of their league but with many smaller studios that strive to innovate and draw attention.

Some of the best slot developers have over a decade of experience in the industry and still retain the desire to push the boundaries. For smaller studios, it’s become much easier to deliver their products to the end customer as they often partner with big companies that help them with everything including providing extensive market reach.

How to Play Slots

While the basics of how to play are straightforward—just a few clicks to set a bet and pushing the Spin button to start the reels—there are certain nuances to consider to maintain gambling as a fun and enjoyable experience.

Come Up with a Game Plan

That’s advice you definitely should follow as gambling can make you spend more than you intended. Set the time and budget limits per session and stick to them. Play free slots before switching to the real money mode. That can help keep the costs down.

Your game plan should really focus on when to stop as this is the hardest thing to do. When it comes to betting systems and strategies, do as feels the most entertaining to you because there’s no way to increase the chances of winning anyway.

Remember That Every Win is Random

Game outcomes are random. Whether you win or lose is determined by a random number generator (RNG) and it doesn’t take into account previous games. For instance, you can win or lose several times in a row, and every time the chances of winning the next time will be the same. So the idea of Hot and Cold slots is something you need to pay no attention to.

The RNG of every game produced by a licensed provider is tested for randomness and when delivered to multiple markets, games sometimes have to be tested multiple times.

Check the Machine’s Paytable

At some point before placing real wagers, you should check out the slot paytable. This document describes everything players need to know about a game: payouts, how to land wins, what bonus features are available and how to trigger them.

Do it either before even testing a game or after a free slot has been played. But make sure you know the rules before risking any money. Knowing the rules and payouts doesn’t improve the chances of winning, but it adds to the gambling experience if you know what to wish for.

Load Up Your Machine

After you’ve completed all of the above-mentioned steps, it’s time to get to the most exciting part. Play a game you’ve selected and get first-hand experience. You may read a lot about a game, but you’ll never know if you’ll like it or not unless you actually try it. Free slots are an excellent opportunity to test titles without any risk.

Types of Machines

Explore slots collection for a while to realize that there are all kinds of games from uncomplicated classic fruit machines to the most innovative and feature-rich games. It takes some time to get familiar with the available slot types as there are so many of them. Themes, different slot engines, volatility, features… There are many ways to deliver versatility.

Slots with Bonus Rounds

Bonus features are often a characteristic of a video slot, which is the opposite of a classic online slot. Some players love bonuses, others don’t and both have reasons to feel that way. Bonus games significantly increase entertainment value as they usually award more payouts thanks to extra features.

But to compensate for the generosity of those rounds, slots have to pay less during the base game, which becomes less lucrative. Considering you don’t trigger any features, your return will be lower than if you would play slots without any features.

Many titles today feature some bonus games, whether it’s a round of free spins, a pick-and-click type of game, or a risk game. As mentioned above, there are even games that allow buying bonuses for a certain price. This way there’s no need to wait before features get triggered randomly.

Progressive Slots

Jackpot is something many would love to get. Jackpot networks with over a million-dollar prize pool aren’t rare. Impressive, mouth-watering payouts do not land often and the competition to hit these big pots is fierce. But you can always opt for smaller growing jackpots and there are many of them available. Smaller jackpots drop regularly and some of them drop even multiple times a day, but the amount can be as small as a few hundred dollars.

Slot Machine Payouts

To land a win, slot players need similar symbols to land an active payline, form a cluster, or just stop on adjacent reels. The way payouts are spread is programmed by developers and can’t be controlled by casinos or players. To ensure fair gambling, all games go through at least one testing by a specialized lab and only then appear on markets.

Despite numerous theories, you can’t know when slots are going to pay. Unless there’s some sort of bug, game outcomes are random. But there’s a sure way to get better payouts, and it’s to remember that many studios have multiple versions of the same slot with different RTP settings. Make sure to choose the best deal.

Return to Player Explained

Slots are designed to pay back a certain share of the wagers to players. If, for instance, the RTP is 95%, that means players on average get back 95% of their total wagered sum. This return doesn’t apply to a single player as there should be a massive sample of the played game for the number to get close to its theoretical value. Millions and billions of spins must be played to make any claims.

The idea of RTP is sometimes misunderstood by gamblers as they expect to have 95% back in one or a few gaming sessions, which is wrong. One player is unlikely to spin the reels the number of times to draw accurate conclusions.

Actual and theoretical RTPs are generally different if a single gambler is considered. You can have 0% actual RTP, but at the same time, there’s a chance to have 1,000% back.

How to Find the Payout Percentage on Slot Machines

Game developers decide where to show the game’s Return to Player (RTP) rate. Some put it right on the loading screen, so it’s easy to see. Others put it in the game’s paytable or description. Also, the rules of the place where the casino is licensed matter. Some places require showing the RTP when the game starts, but others don’t.

slot RTP paytable

If no theoretical return is provided when you load a slot, another option is to access the official developer’s site and look for the information there. Or you can also find a game in our free slots catalog and open a slot review page. We specify RTPs for all titles available for testing on Clash of Slots.

The House Edge Explained

The house edge is the advantage casinos have over gamblers. When speaking about slots, it’s the opposite of the RTP. If the RTP is 95%, for instance, the house edge is 5% (100% – 95%). That’s how much on average players lose and houses win. The commonly acceptable casino edge is around 2%-7%, which translates into 98%-93% RTP. Beware that sometimes titles have versions with RTP starting from as low as 80%, which is unacceptable for many gamblers.

Free Slots vs Real Money Slots

Both options are great and they each have advantages that are kind of obvious. With free slots, you won’t feel the complete range of emotions but will have a free quality experience. The range of titles available in demo mode is unlimited except for a very few exclusive titles. Practice mode is perfect for exploring different choices and getting to know slots.

The real money option unlocks the full range of emotions from bad to good as real cash is at stake. Some games offer massive max payouts or huge jackpots and landing them while playing can be a lot of money. You get access to the best casino bonus offers but these always come with terms. And you can’t deny the fact that you can lose a lot if you are unable to control your emotions.

Why Trust Our Casino Slots Rating

The scoring is done based on the actual data provided by casinos. That’s why it’s an accurate representation of what thousands of gamblers choose to play. For this rating, we combine historical with the latest data to find out the ultimate top popular slots list.

There are thousands of top online slots and it’s hard to choose which ones to play. You might want to start with the most popular titles as they must be the most exciting ones. This rating gives a great insight into the preferences of the gambling community.

The answer depends on where you live. Most of the time, even when online gambling is prohibited, no laws prohibit playing casino games. So, it may be perfectly legal to enjoy slots in casinos licensed in other jurisdictions.
Check out the casino rating on this site and read detailed reviews. All the operators listed there offer nice slot collections. Or do your own research and make sure operators are legitimate and have a good reputation.
Any title that isn’t exclusively designed for a certain gambling site is available for testing.
If you enjoy playing free games, there’s no point in spending cash. But if you think practice mode isn’t enough for you, try real money mode. You might also want to combine free and cash gambling.