Online Slots

The Most Popular Online Slots In 2024

Online slots took the gambling and casino world to another level. We are here to guide you to find the best slot sites the web has to offer.

We have based our ranking on a wide range of criteria, including security, RTP verification, game choice, and other key factors.

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Best Slot Games for 2023

After a decade of playing slots, we have compiled the slots of games for the best gaming experience. Our information is not collected from other websites but from our own experiences with many different casino online games and casinos with no registration required.

New players may find it difficult to select the best online slot sites to play at that is compatible with their gambling style, and experienced players may have preferences regarding things such as the slot game maker.

With an incredible number of entertaining slot games to choose from it is sometimes best to “test drive” them first, with that in mind you can play free slot games here.


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Your Expert Guide About the History of Slots

Online slots are played by thousands of players across the globe every day and, in land-based casinos, slot machines continue to be hugely popular with gamblers too. But where did the slots that we know so well today evolve from?

The history of slot machines is a story of pioneers who altered the way people have gambled over the past century and a bit. You can still see evidence of the early slot machines in new video slots made today. Let’s take a trip down memory lane and explore the fast-changing history of the most popular gambling game in the world.

1902: Slot Machines Get Banned in the US

Despite the fact slot machines were banned, production continued, and popularity increased. Fey and his team couldn’t keep up with the demand. He kept refusing to sell the rights to big manufacturers, though, and soon other inventors began to create their knock-off versions. Slot machines boomed from this point and were popping up across hotels and venues around the country. They soon began to be known as ‘one-armed bandits’ because of their levers on the side.

1964: Bally Build Money Honey

The swinging sixties saw the rise of electromechanical slot machines. Bally was the first company to create a slot machine with electric reels, called Money Honey. The game still needed to start with a mechanical lever, but the electric reels were a game changer. It weighed a staggering 200lbs and was able to handle paying out hundreds of coins in one go. It was hugely popular.

1976: Fortune Coin Co. Make the First Video Slot

Las Vegas-based Fortune Coin Company developed Fortune Coin, the first-ever video slot, and gave everything a futuristic leap. Some players found it took a bit of getting used to, though, as they were more familiar with the mechanical spinning reels.

It was later modified and cheat-proofed with the addition of random number generators (RNGs) when it was bought by IGT in 1978. IGT’s William Redd took over the Fortune Coin Company and improved the flagship slot machine’s RNG. By the end of the 70s, Fortune Coin had a better RNG, more paylines, and promised bigger payouts. It was soon a regular feature along the Las Vegas strip.

2000s: Mobile Tech and the Future of Slots

By the early 2000s, Microgaming was busy setting records for progressive jackpots. Major Millions held the world record in 2002 for a progressive prize at $1.5 million, but within ten years the record had been broken. Mega Moolah was introduced in 2006 and has been awarded several 6-figure prizes in its lifetime.

In 2015, the record for an online progressive jackpot was broken when a British soldier took away £13.2 million playing The Dark Knight at an online casino.

As smartphone technology improved, so too did the range of mobile slots. Popular online slots were optimized to work on several different devices. Although early mobile slots were clunky and utilized the handset’s buttons, games emerged that allowed players to use the newer touchscreen devices.

Going forward, slot developers are only restricted by available technology and the freedom of their licensing jurisdiction. NetEnt has begun developing the first Virtual Reality (VR) slots that work with cheap VR headsets and allow for an immersive experience. Watch this space for 2022 and beyond!

The Best Online Slots: Top Slot Machines to Play Online

To find the best online slot sites, game selection is undoubtedly one of the most important factors. Unless a site offers an exciting selection of slot machines, it is not worthy of your consideration. Every player has their preferences when it comes to the types of slots they want to play. And the top sites will cater to all players, with a diverse range of games. Here are the best online slots in the UK according to our latest rankings:

  1. Starburst – The most popular online slot in the UK
  2. Mega Moolah – Biggest progressive jackpot slot
  3. Cleopatra – The best online version of a land-based slot
  4. Pixies of the Forest – 3-for-1 wagering feature
  5. Gonzo’s Quest – Avalanche gameplay and increasing multipliers
  1. Game of Thrones 243 Ways – Best-known branded slot
  2. Ugga Bugga – Highest RTP slot online
  3. Immortal Romance – Player-favourite theme
  4. Jurassic Park – Top free spins feature
  5. Pharaoh’s Fortune – Popular Egyptian-themed slot

Of course, this is just the tip of the iceberg. With thousands of games to choose from, there are many other good titles you can try at the best slots sites. On our site, you can find the best free slots to play online. Try them out and you will get a better feel for what they have to offer and which you enjoy the most.

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The Top Slot Jackpots You Can Claim

Progressive jackpot slots are a highlight of the game category. Whilst they give lower average payouts, they offer the biggest prizes you can win in online gambling. With a portion of all wagers on jackpot slots added to a prize pool, the jackpots can quickly build to life-changing sums of money.

  • Mega Moolah – Guinness record for slot jackpot. (18,915,872.81€)
  • Mega Fortune – NetEnt’s biggest jackpot payout. (17.81€ million)
  • Gladiator Jackpot – UK player won the biggest jackpot. (2.4€ million)
  • Jackpot Giant – Record jackpot was won playing on mobile. (£4.5 million)
  • Hall of Gods – Features 3 jackpot prizes; Mini, Mini, and Mega.

Slot jackpots are triggered randomly when you play. Yet, generally speaking, the higher your wager, the better your chance of hitting the jackpot. Still, there are some notable exceptions to the rule. Take Microgaming’s Mega Moolah slot for instance. In October 2015, a lucky Brit scooped a record-breaking £13.2 million with a bet of just 25p.

Online Slots

Online slot machines are very simple games: insert the credits, click on the spin button, wait for the reels to stop, and check if you have obtained a winning combination or not.

Slot machines are a combination of many factors that determine the worldwide success of one of the simplest games that can be found in any casino. This type of game is a set of colors, sights, sounds, and sensations that are not easily found in other types of games.

In addition, all the games that do not require special skills to be played are usually the most successful ones. When it comes to slots, all you have to do is decide your bet depending on the machine you choose and spin the reels.

So, who makes the best slots? And where can you play them? The number of companies that develop and distribute slot games is truly vast and, given the success of this type of entertainment, constantly growing. The major providers include the following companies:

  • NetEnt
  • Play’n GO
  • Evolution Gaming
  • Thunderkick
  • Playtech
  • NextGen
  • Novomatic

But many other companies offer an increasingly exciting gaming experience. Where you should know that the competition between the best online casinos is fierce. Each operator tries to attract the attention of possibly new users with a proposal that is always fresh and different.

Any operator intending to enter the gambling market must necessarily obtain a license to operate by the law. The license verifies and certifies several aspects of the operator such as legal requirements, business plans, and regularity of the gaming software. It is the most secure way for you to make sure that the online casino isn’t a scam and that you will see your winnings.

The Quirks of Online Slots

  • The wagering requirements
  • The time limits
  • Any game restrictions
  • The betting limits

We’ve made it easy for you to simply pick the promotion that most appeals to you and get playing. We do all the legwork so that we can provide you with lists of the best welcome bonus deals. Our website is your one-stop shop, where you can easily compare casinos and their welcome offers.

How To Find A Good Casino

Online slot machines are invading the internet, and most of the revenue in the online casino sector is represented by revenues from slots. Why are there so many people playing slots?

You no longer have to worry about finding a casino and placing your bets in front of other people who don’t know you. Thanks to online slots you can bet and win large sums of money directly from your home. You can try your luck lying on the sofa, or in the office during your lunch break.

The main advantage of online slots, therefore, is the convenience of playing. But is that all there is to it? Read on to find out.

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Upon entering a brick-and-mortar casino, no one would come and give you money to welcome you.

Online casinos, incredibly, do it: often it sums between 10 and 30 euros. Of course, this is not money you can withdraw, but you can use it to bet to win more money.

In addition, in online slot machines, there are interesting bonuses that you can receive during the game. We are talking about the Wild and Scatter bonuses. The first is the common wild card which allows you to substitute missing symbols in the pay line to obtain a winning combination. Scatter, on the other hand, can triple your total winnings if you hit a combination.

An online slot machine can have as many as 100 paylines, while the real ones are less than half. Physical slot machines are mechanical – a large number of reels could lead to errors and failures. The fact that online slots are electronic makes them error-free (unless you lose your internet connection while you are betting).

Finally, an additional advantage is entertainment. Online slots offer hundreds of games. Furthermore, the graphics are often taken from famous movies and television series and increase the enjoyment of the game.

Online Slot Features

There are many things to consider before choosing the top slot you’d like to try next. For example, we recommend you check the following:

  • The RTP, a value described in statistical terms, over a large number of reel spins, declares its return in cash to the player.
  • Paylines: nothing more than virtual sequences that take into consideration the position of symbols when they stop on the reels. If the combination of these symbols is successful according to the rules of the slot machine you are playing, then the payout line is activated, leading to the winning of a prize.
  • Volatility, or the risk linked to a certain slot. That is what a player can expect from the video slot at the end of the session from the point of view of the frequency of the win and the relative amount of money.
  • Guaranteed Safety is another necessary feature for those of you who’d like to try a new slot game. Check our Casino Reviews, where we’ve done all the legwork for you, and established which are the best casinos to play at!

You’ll find that these concepts are clearly explained in our slot reviews, so remember to check them out!

Other Features

There are many things to consider before choosing the top slot you’d like to try next. For example, we recommend you check the following:

  • High Volatility Slots
  • Medium Volatility Slots
  • Low Volatility Slots

High volatility slots are those games in which you can win big, such as jackpot slots. They are characterized by the presence of wild symbols and multipliers that activate potentially very profitable bonus features. Conversely, high-volatility slots do not pay out rewards as often. This means that you may have to spin several times before hitting a winning combination.

Conversely, low volatility slots do not have progressive jackpots and often no type of jackpot at all (or in any case very low jackpots). However, the lack of big prizes is compensated for by a higher frequency of winning combinations, which makes low-volatility slots the ideal games for those who want to play for a long time

Finally, medium volatility slots are somewhere in between: they offer interesting jackpots, even if they are not mind-boggling figures, and while they don’t have the same “wide sleeve” as low volatility slots, they guarantee a percentage of winning combinations higher than high volatility slots.

Furthermore, slot features are something you should look for when choosing your next slot: free spins, bonus buys, and jackpots are all elements that can completely modify your game.
Graphics are another element not to be underestimated, as it represents the attractiveness of a slot, as well as its ability to truly engage players


How Much Do They Cost To Play? Can I Play Slots For Free?

Slots don’t have a predefined cost – you decide how much to play. The total stake ranges from a minimum of € 0.01 per spin to larger amounts, with the maximum varying depending on the slot. The maximum amount per game session is € 1.000.
Most of the slots are available in a free version: you can even try them out here for free, by clicking on the review of the slot.

What Is The Difference Between Slots and Online Slots?

The biggest difference between the two is that online slots allow you to play wherever and whenever you want, guaranteeing you a three-hundred-and-sixty-degree gaming experience also thanks to a virtually infinite offer in terms of settings and types of games available. Online, it is possible to find any type of slot, even the most “revolutionary” ones that do not have a real classic grid.

How Do I Bet When I Play Online Slots?

The total bet indicates how much you are playing overall on the slot spin, and is calculated by multiplying the bet per line by the number of active lines.

For example: if you have assigned the value of 0.1 € to the bet per line, and you have activated 3 pay lines, the total bet will be 0.3 € per spin.

To define the total stake value, you can then decide to change the stake per line and/or the number of paylines (up to the maximum allowed). These parameters can be reviewed before each spin. Some slots, on the other hand, have a fixed number of pay lines, so it is possible to establish the bet per line but not the number of lines.

Simultaneously with the start of the round, the money will be immediately used for the game. At the end of the game session, any winnings will be immediately available on your Game Account balance.

How To Choose A Slot Game?

The variety of slots that we have selected for you is truly incredible and ever-increasing. To find the slot with the features you want, use the numerous filters available in the left column of the Slot Section, such as:

  • Number of paylines;
  • Functionality (e.g., bonus, free spins)
  • Category
  • Producer

Playing is simple and intuitive but, to familiarize yourself with the various game dynamics, you have the opportunity to play for free with most of the slots offered.

Are Online Slots Legit?

All the slots you’ll find on AboutSlots are certified, to guarantee you maximum safety and reliability. The result of each spin of each slot is generated by an RNG Random Number Generator system, tested, and certified periodically.


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