Best online slots & Best slot sites 2022

Everyone enjoys playing slot games, but to get the best possible experience, you need to play top online slots, not just any game. Moreover, it is imperative that you play at the best slot sites, as only these casinos have features that can offer you both an enjoyable and profitable experience. Doing all these can be quite challenging, especially for beginners. That's why we've created this guide: below, we talk about everything you need to know to choose both the best online slots and the best slot sites for winning.

Best 3 slots

Book of Dead
RTP: 96.20% Volatility: High
Book of Dead by Play'n GO
300€ + 22 Bet Points 22bet
Play for Real Money Play for Fun
Wicked 777
RTP: 96.30% Volatility: Medium
Wicked 777 by Skywind
Up to 50€ welcome bonus Hippodrome
Play for Real Money Play for Fun
Avalon II
RTP: 95.92% Volatility: Medium
Avalon II by Microgaming
100% up to 140€ on 1st Deposit 888Casino
Play for Real Money Play for Fun
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    Best online slots to play

    Let’s start with a list of the best slots to play in 2022, shall we? We don’t believe that there is a fixed list of "best slots" for everyone. Slot machines come in an incredible variety. This means that each player will have a personal “best of” list: if you are looking for the best slot machines to play, it is best to try different types of games and find out which ones appeal to you the most. You can start doing this with the following slots: each of these games appeals to different tastes with different themes and mechanics.

    Gonzo’s Quest

    Gonzo’s Quest Play for Fun
    Provider NetEnt
    RTP 95.97%
    Max Win 37500x
    Paylines 20
    Volatility High
    Why Do We Recommend Gonzo’s Quest?

    This game changed one of the basic slot mechanics by using the "Avalanche Reels" feature for the first time. This feature was later imitated by many other games.

    Netent launched Gonzo's Quest in November 2013, and despite all that time, this “ancient civilization” themed slot is still on most sites' best casino slots lists. While there are many reasons for this, the most important thing that makes this 20-line game famous is its use of the "Avalanche Reels" mechanic. This feature simply works like this:

    • When a win is made, all symbols included in that combination disappear
    • New symbols appear in place of disappearing symbols, without the player having to make a new spin
    • These new symbols can also trigger a new winning combination

    So if you are lucky enough, you can win multiple times in a row with a single spin. Moreover, Gonzo's Quest has tied this feature to a multiplier system: when Avalanche Reels triggers a new win, the multiplier also increases, and the payout gets bigger. The game also has classic slot features: if you land three of the "free fall" symbols, you can win 10 to 20 free spins. You can trigger this feature multiple times along with the 15x multiplier. Gonzo's Quest has an RTP of 95.97% and offers MED-HIGH volatility, meaning the main game has medium and the bonus feature has high volatility. The game runs on web browsers and works on all mobile devices.

    Mega Moolah

    Mega Moolah Play for Fun
    Provider Microgaming
    RTP 93.42%
    Paylines 25
    Why Do We Recommend Mega Moolah?

    This game is still considered “the world's highest paying progressive jackpot” in 2022 and has the potential to make any player a millionaire.

    There is a simple reason why Mega Moolah is one of the top slot games of all time: it pays big. And when we say “big”, we mean it: this game can make you a millionaire. In fact, it has the World Record of being the slot game with the highest payout: €17,879,645 ($20,062,600, £13,209,300). That’s why all of the best slot sites offer you the chance to play it. Mega Moolah is developed by Microgaming, and while it was released in 2006, it is still the world’s biggest online progressive jackpot, even after all those years.

    Mega Moolah is based on “wildlife”: it has 25 betlines, medium volatility, and 88.12% RTP. While this is a low value, remember that this is a progressive jackpot: their RTPs are always lower than video slots. There is no maximum win limit in this game: the money in the jackpot keeps increasing until someone wins, and sometimes it reaches millions. In addition to this jackpot, you can still win multipliers (up to 600x) and 15 free spins with a 3x multiplier. Statistics show that someone wins the jackpot every 6 weeks on average, and maybe it is your time to win. You can play on iOS or Android without a download.


    Starburst Play for Fun
    Provider NetEnt
    RTP 96.09%
    Paylines 10
    Why Do We Recommend Starburst?

    This slot shows that a slot game without the free spin bonus round can also be extremely successful and lucrative: sometimes less is better.

    2013 was a very productive year for Netent, as two of its famous slots were launched this year, which helped the studio to enter almost all the best online slots lists: Gonzo's Quest and Starburst. The studio tried new things with both games and managed to create some of the best slot machines to play. Starburst may seem like a simple game with a space theme at first glance, as it only has 10 lines and does not include the "free spins" bonus. However, this is a deliberate choice, because Netent used the "re-spin" feature, which offers much more dynamic gameplay.

    The wild symbol of this game has "expanding" and "sticky" features. This means that when it appears on the screen, it expands to cover the entire reel and triggers a re-spin. It doesn't disappear on the screen (sticky) during this spin either. With this feature, you can trigger three consecutive re-spins. Although there is no separate free spin round, you can win even more with this feature: re-spins allow you to win up to 50,000 coins by paying multipliers. The RTP of the game is 96.09% and it has low volatility, so the payout frequency is quite high. You can play on mobile without a problem.

    Book of Ra Deluxe

    Book of Ra Deluxe Play for Fun
    Provider Novomatic
    RTP 95.50%
    Paylines 10
    Why Do We Recommend Book of Ra Deluxe?

    While there are many slots using the Ancient Egypt theme, this game is still among the best of the genre and shows how fun classic slots can be.

    Among the most popular games of the best slot sites, you can always find a slot with the theme of ancient Egypt: this is among the most popular themes. As might be expected, some studios are more adept at using this theme, and Green Tube (Novomatic), known for its classic slots, is the best: the company has dozens of games with an ancient Egyptian theme, most of which are on the best slots to play lists. Book of Ra, which was released in April 2008, was one of these games, and a modernized version called "deluxe" was developed later due to the interest it received: this version works on all mobile platforms.
    The modernized version also has a higher RTP (95.10%) and high volatility. However, it still has 10 lines, the same symbols, and the same payouts. You can trigger 10 free spins (with a 2x multiplier) by landing three scatter symbols anywhere on the screen. During this bonus round, one of the symbols becomes “expanding”, meaning it can feel the entire reel it landed on. There is also a risk game that can be manually activated after each winning spin, which gives you the chance to double the payout. The maximum win of Book of Ra Deluxe is 10.035x total bet.

    Thunderstruck II

    Thunderstruck II Play for Fun
    Provider Microgaming
    RTP 96.70%
    Paylines 243
    Why Do We Recommend Thunderstruck II ?

    igh volatility, multiplier payouts, and four free spin modes with different bonuses: Thunderstruck II is one of the best examples of the “video slots” category.

    Thunderstruck II is one of the best slot machines to play if you enjoy classic video slots with exciting & profitable features. Microgaming has released this game in May 2010, so it works on any device with a browser – no download is needed. As the name suggests, it is the sequel to the famous slot of the same name (which was among the best slots in the early 2000s) with “upgraded” features. This time, you get 243 paylines, high volatility, and an RTP rate of 96.65%. The theme is “Scandinavian Gods”, as you can guess.

    You can trigger the “Great Hall of Spins” feature by landing three “Bonus Hammer” symbols on the reels. This is the free spin round of the game, and it comes with four different bonuses:

    • 10 spins with a 5x multiplier
    • 15 spins with wild symbols on the middle reel
    • 20 spins with random multipliers (up to 6x)
    • 25 spins with a 5x multiplier

    You can use these features after triggering the previous one at least 9 times, i.e., after using “10 spins” nine times, you are allowed to advance to “15 spins”. The maximum win is 2.4 million coins.

    Highest RTP slots

    We mentioned above that every player should have their own personal list of best slots. But whatever your tastes and expectations, there is also an objective criterion that makes a slot good: RTP. This is short for “return to player” and indicates how much you can win back from a slot. It's not about the chances of winning: RTP determines how much of your total investment in a particular slot game you can recover.

    Let's explain with a few examples:

    • If you deposit 100 EUR/USD on a slot with an RTP of 97.00%, you can win back 97 EUR/USD.
    • If you invest 50 EUR/USD on a slot with 95.00% RTP, you can expect to win 45 EUR/USD.

    These are long-term expectations, and long-term means 1,000 spins on average. So, after 1,000 spins on a slot, the RTP rate will show how much of your total deposit you can win back. As a general rule, you should choose games with an RTP of at least 95.00%. This is true for every game in the best slots to play list, and the higher the RTP, the better. In this regard, here are some of the slots with the highest RTP values:

    Ugga Bugga

    UggaBugga looks quite different: this is a slot with 10 reels, instead of the usual 5. There is a total of 10 paylines and a win can happen on any of them: all you need is to land three same symbols next to each other. There is also a “hold and respin” feature which resembles video poker games. The maximum payout is a 1.000x line bet and the volatility is low. In other words, you can expect to win pretty often.

    Ooh Aah Dracula

    This is a classic video slot with 10 lines and medium volatility. It's not just the high RTP rate that makes it one of the best casino slots: this game features two different modes, "hi-roller" and "normal". When you activate the hi-roller mode, the min/max bet limits increase, but the RTP also goes up to 99% (it is only 96% when this mode is not on). In the bonus round of the game, you have to choose between a single wild symbol and 15 spins or two wild symbols and 10 spins.

    Blood Suckers

    This is one of the top slot games of Netent: since its release in 2013, the game gained the interest of many players due to its high RTP and interesting theme (vampires). It comes with low volatility and 25 betlines. The maximum win is 900x total bet, which can be won only in the free spins round. Speaking of which, you can trigger this feature by landing three “Vampire Bride” symbols: doing so will award 10 free spins. These symbols will also award up to 100x total stake if you manage to land more than three.

    RTP 98.00%
    Provider NetEnt


    What makes this game one of the top online slots is its “Jokerizer” mode. This is actually a classic fruit slot with 10 lines, and its RTP is actually 88.80% during the normal gameplay. However, any win triggers the “Jokerizer Mode” automatically and asks you to increase the bet amount until you win 1.000 coins. If you agree, any two Joker symbols that appear anywhere on the reels award up to 6.000 coins while this mode is active. This feature increases the RTP to 106%, and the average of both values is 98.00%. In other words, make sure to use this mode.


    Starmania was one of the first games of Nextgen and it is still among the best online slots you can play. It only has 10 paylines but they pay both ways (not only from left to right). You can win up to 500x total stake and take advantage of 10 free spins with 30 extra wild symbols. The volatility is low for the main game and medium for the bonus round. The special symbols of the game also pay with multipliers, between 50x and 100x.

    White Rabbit Megaways

    White Rabbit was once the most popular game at the best slot sites, especially the UK online casinos. This is mostly because it is one of the original slots that made the “Megaways” feature famous: this game has dynamic paylines, which can go up to 248.832 per spin. The fact that it also has high volatility makes the overall payouts quite satisfying: you can win up to 6.220.000 coins in this game. There are random multiplier Wilds that will further enhance the payouts and during the free spinbonus, the reels themselves extend. White Rabbit is still one of the best casino slots to play, especially in the “Megaways” category.

    Best slot sites

    Casino rating 9.5 /10
    Number of slot games: 1500 slot games Free spins: No
    100% up to 140€ on 1st Deposit
    Casino rating 7.5 /10
    Number of slot games: 400 slot games Free spins: Yes
    Up to 50€ welcome bonus

    We mentioned above that to play the best online slots, you need to play at the best slot sites. So, how can you do that? How do you know if one slot site is better than the others? This is not an easy task, and many different factors need to be evaluated. When choosing the best slot sites for winning, we recommend that you consider the following points:

    Legality and fairness

    Best slot sites are always licensed, that is, legal. At the same time, they can prove their fairness by collaborating with independent auditors such as eCOGRA and iTechLabs.

    Slot collection

    At the end of the day, we are here to play the best online slots, so your next step should be to evaluate the game collection. Choose casinos that work with top-tier developers such as Microgaming, Netent, Play'n GO, and make sure that the slot collection is satisfactory in terms of variety, numbers, and quality.


    Choose casinos that offer bonuses that allow you to win both free spins and cash balance. The best slot sites allow you to use both on slot machines and offer fair bonus terms. In this regard, opt for bonuses with low wagering rates (20x – 30x) and make sure your bonus can be used in multiple slots.

    Payment options

    There should be multiple options for depositing and withdrawing money: choose casinos that can offer options such as credit card, debit card, e-wallet, voucher code, or even cryptocurrency. Best slot sites also allow you to make fast, smooth, and free-of-charge transactions.

    What slots are worth playing?

    We mentioned above that in order to create your own personal list of top online slots, you need to try many different games. Slots have an astonishing variety, and it is possible to get a different experience with each one. In this regard, we recommend that you try the following types of slots to find the most suitable options for you:

    Classic Slots

    Games closest to the original form of slot machines. They usually have 3 reels and 5 lines, but variants with 5 reels and 9 lines are also available. In any case, their special symbols and bonus features are quite limited and all you have to do to win is to place mostly identical symbols next to each other. Despite their simple gameplay, they offer a high winning potential and use classic symbols such as fruits, 7s, and BAR. Some of the top slot games in this category are Ace of Spades, Lucky 7, Mystery Joker, Break da Bank, and Jackpot Cherries.

    Video Slots

    A large part of the game collections of the best slot sites consists of video slots. They usually have 15-20 lines, but some games can dynamically generate 1,024 lines or more. They have better quality graphics, more special symbols, and bonus rounds. There are many options in this category: you can try the many best online slots such as Book of Dead, Sweet Bonanza, Age of the Gods, and Starburst.

    Jackpot Slots

    These games have a big prize (jackpot) that can be won in addition to the standard payouts. The amount of this reward can be fixed or variable. If it is variable, the amount increases with each game played and can reach huge amounts. Jackpot games have lower RTP, but they make up for it with the size of their prize. Mega Moolah, Divine Fortune, and Retro Reels are among the most popular examples of this category.

    Cluster Slots

    These games do not have paylines: they are played like match 3 games and your goal is to form clusters of identical symbols. They can offer quite a high payout potential as they usually pay with multipliers. Aloha! Cluster Pays, Gemix, and Moon Princess are examples that you can often see in this category on best slot sites.

    Slots with Bonus Buy

    In games with this feature, you can start the bonus round (for example, free spins) whenever you want and repeat this as many times as you want by purchasing it with real money. Games such as Dead or Alive II, Money Train 2, and Fruit Storm are among the best online slots with this feature.

    Megaways Slots

    In slots with this feature, paylines are created dynamically with each spin and can reach over 110,000. In bonus rounds, the reels expand and gain additional features too. Megaways games are very popular, and you can choose from many best online slots such as The Dog House, Extra Chilli, Majestic, and Morgana.

    Meet our author

    Writer, proofreader Will Wood

    Will is responsible for English content. Will prepares slot and casino reviews regularly and knows all mainstreams of modern iGaming. Being a talented and diligent writer, he could cope with practically any task. He could fastly switch between different subjects and provide content of the highest quality. Will is an expert with analysis and research, that’s why we are always sure he will produce unbiased content.

    Will Wood

    FAQ About Online Slot Machines

    Which online slots are the best?

    Any slot that has an RTP of over 95% and allows you to have fun and win at the same time is good. There is no fixed list of slots that will offer the best possible experience for everyone. Try different slots and create your own personal “best of” list, considering your own expectations and tastes.

    Can you make money playing online slots?

    Online slots are casino games that can be played for real money, and when you play that way, the payouts will be real too. So yes, you can make money with slot games. But keep in mind that your winning (like any other gambling game) will depend on luck, and don't consider slots to be the only way to make money.

    How to pick the best site to play slots?

    To do this, there are many criteria that you need to consider: the quality and variety of the slot collection, the license of the casino, the types of bonuses, payment options, and mobile compatibility are the most important ones. In any case, we recommend that you try multiple sites and try to find the one that best suits your own expectations.

    Are there any slots better not to play?

    Yes, we recommend that you do not play any slot with an RTP of less than 95%. Apart from this, there are other things you need to consider according to your own personal situation. For example, if your budget is only enough for a few dozen spins, it would be better to stay away from progressive slots and try penny slots instead.