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Since 2001 we have been playing and testing thousands of slot machines online. So we decided it was time to make an all-time top list with the 30 best.
After much deliberation, we have narrowed down a list of the best 30 online slots ever made. But we didn’t want to leave you with only a slot name title. So we have added a short description of each slot machine. In our opinion, all the below deserve their ‘Top 30’ status.
It took a lot of work to make the top list below. It was one of the most challenging tasks since we started OnlineCasinos.net. Because there are so many good slots online, it was also challenging to cut the top list of nominees down to only 30. So in the future, we will extend the list to 50 as we had to leave some excellent slot games out. Furthermore, many new slots are also released each month.
All the games below you can also play on your Android, Windows, and iOS mobile devices. Best Online Slots List & Ratings
Why do we believe this is the most accurate Top 30 Slots Guide Ever?
Our experience with online slots goes back over two decades. We were there when online slots first hit the internet’s wires, making their way to people’s home PCs. We have seen all the technological changes the online casino industry has made. From PCs to iPods, smartphones to tablets, and beyond. Our team of avid slot machine fanatics have been there, done it, and bought the T-shirt.
We have tried every bonus round, new feature, free spins, and progressive slot, from 1-way to 1024-way win slots. In addition, our team of slot pros has tried and tested every new idea released by the online slot industry.
There is nothing we do not know about playing online slots. But we all have our tastes in slot features and themes. So if you feel we missed out on your favourite slot machine during this review, we apologize.
Yet, if you see slots mentioned here that you have yet to try, we urge you to try them. You never know; we might surprise you by introducing what could be your new favourite online slot!
Sit back, read on, and enjoy the ride!
Top 30 Online Slots
1. Wild Toro 2 – New Top
Wild Toro is a popular name in the Elk Studios collection, and you can see the first version below. The original game became an instant hit with its fun theme, great visuals and lucrative bonus rounds. So the designers decided to treat us with a superb new sequel to this slot machine. The Wild Toro 2 is a new top online & mobile slot from 2022. it is so good that we have voted it the best online slot machine ever made.
As you can already guess, the slot follows the same theme as the original. You’ll witness firsthand the mischiefs of the Red Bull and the Matador. For this game, the designers went with a 5×5 grid, offering 259 paylines. The bet size is pretty standard, ranging from $0.20 to $100 per spin. The game has an RTP value of 95% and a medium to high variance.
As in most other slots, the most lucrative part of the game is the bonus features. Wild Toro 2 doesn’t disappoint in this section, as it offers four exciting bonus features:
1. 1. Toro Goes Berserk when the Bull and the Matador symbols land in the same spin. Toro will knock all Matadors off the reels, leaving a trail of Wilds behind him. . Land the Silver or Gold Matadors to trigger the Matadors Re-spin feature. The win multiplier attached to the Gold Matador increases with every re-spin. . When Toro knocks out a Gold Matador, the Matador Knockout feature is triggered. The multiplier value is transferred to Toro, and he becomes a Walking Multiplier Wild. . Land a Matador symbol on the screen to trigger the Expanding Reels Feature. An extra row shows up on top of the reels, increasing the overall number of winning paylines.
Online Slots don’t get much better than this — Congratulation to Elk Studio for making the best online slot ever.
PLAY WILD TORO 2 FREE OR MONEY2. Nitropolis 3 – New Top 2 The Nitropolis 3 slot is the latest and super fun-to-play addition to the Nitropolis franchise. After a close showdown with sergeant Nitro Wolf in the previous slot versions, the gang had to flee town in a hurry. They found a nice spot down south where they got to their mischievous lifestyle. As you might expect, the slot machine has an original design and great bonus features, and the gameplay is exceptional fun. It comes with 6 reels and 4 rows, which can expand up to a maximum of 8. The bets start at only $0.20 and can go up to $50 per spin. The top payout in the game is set at 50,000 times the total stake. Base play comes with big symbols. Covering up to a 4×4 grid, an avalanche mode, Wilds, Both Ways Pay, and Nitro Reels Re-spins, making it exciting to play, as payouts can be huge. Land 3, 4, 5, and 6 bonus symbols to get 8, 12, 16, or 20 free spins. Trigger the feature with a Super Bonus symbol to start playing with 8 rows high, and Both Ways Win. Needless to say, the super bonus free spins are where the most significant payouts can happen. So this is where you can see the full potential Nitropolis 3 has. We all here at OnlineCasinos.net love to play the Nitropolis 3 slot machine. So it was not hard to agree it should be in the top 3 of the best online slots ever. Whoever designed this game at Elk Studio deserves a raise because it is such a fun game to play. PLAY NITROPOLIS3 FREE OR REAL MONEY3. Starburst The 3rd slot on the top list is the all-time most popular online slot. The Starburst game is always busy at online casinos. Starburst by NetEnt is a fantastic 5-reel, 20 pay line video slot with an RTP of 96.09% and wins payout both ways. Most of its popularity is down to its low variance, which means regular payouts and plenty of entertaining action. Starburst has been designed with a classic feel but with stunning graphics, and its popular bonus feature is that of the expanding wilds. These can land on any of the 5 reels, and when they do, they will expand to fill the entire reel. Not only that, when these expanding wilds land, they will lock the reels they landed on. You will then win free re-spins on the remaining reels, where any new winning combos will pay out accordingly. Furthermore, the expanding wilds can be retriggered up to three times in a row, giving you chances of massive payouts. PLAY FREE OR MONEY READ REVIEW4. The Dog House Megaways New Pragmatic has released several great online slots lately, bringing many loyal players. The best one, undoubtedly, is The Dog House Megaways Slot. With 6 reels, 7 rows and 117,649 ways to win, this slot can produce payouts of over 12,000 times the total stake. This enormous payout potential is the main reason why many players give the game a try. The Megaways mechanic can bring hefty payouts since there are many winning combinations. To trigger the free spin feature, you need to land 3-6 Scatters on the reels, or you can use the Buy Bonus button for a price of 100 times the total stake. Depending on the number of Scatters you get, you are rewarded 7 to 20 free spins with up to 7 Sticky Wilds on each reel. If you choose the Raining Wilds feature, you can win up to 30 free spins with up to 6 Wilds on each spin. The best part of the free spin feature is that the Wilds can come with an attached x2 or x3 Win Multiplier. The Dog House Megaways is real fun and exciting online slot with many fans, and it deserves a 4th spot on the 30 best online slots list. PLAY FREE OR MONEY READ REVIEW5. Age of Asgard We rarely get a new slot in the top 5, but the new slot machine from Yggdrasil Age of Asgard deserves a prime spot. It is a 5 reel with up to 50 paylines. Age of Asgard online slot offers wilds, different types of free spins, and fun clash features. If you play max bet, the slot machine can pay up to a whopping $488860. You can bet from $0.20 to $200 per spin. Age of Asgard is an exciting and fun 2-in-1 slot machine concept! Age of Asgard is, in our opinion, the best online slot that was made in 2019, and it’s getting spot five on the best online slots ever. Keep up the excellent work, Yggdrasil! PLAY FREE OR MONEY READ REVIEW6. Legacy of Egypt Created by Play’n GO, Legacy of Egypt is another game revolving around the hugely popular theme of ancient Egypt. Reels populated by symbols such as scarabs (wilds), pyramids (scatters), queens, and pharaohs are complemented by exciting music that rounds up the atmosphere. Legacy of Egypt features 5 reels and 30 paylines with symbols stacked on the reels, creating possibilities for some big wins. However, in the bonus feature, this slot shows its full potential and where you have a chance to win really big. The bonus is triggered by landing three pyramid scatters anywhere on the reels, and players can win up to 20 free spins at the start of the feature. On every spin of the bonus, a random multiplier between 2x and 10x is applied to all wins on that spin. The bonus feature in Legacy of Egypt can be retriggered, which often happens by landing two or more pyramids on any bonus spin. When this happens, you’ll get more free spins (Pyramid Spins) and keep the multiplier active on the triggering spin. You can win even more Pyramid Spins by landing two or more scatters on any free spin. I love to play this game and have often gotten over 50 free spins, and sometimes even with a 10x multiplier – definitely one of the best online slots out there. PLAY FREE OR MONEY7. Book of Dead Book of Dead is one of the most legendary slot releases by Play’n GO. This is a 5-reel, 3-row slot game that allows you to explore the deepest secrets of Egypt’s pyramids. It features HD graphics, and thanks to the fact that it utilizes the latest HTML5 technology, the Book of Dead slot is fully optimized for use on all Android and iOS devices. There are a total of 10 adjustable paylines in Book of Dead, and they reward players from the leftmost to the rightmost reel. Additionally, Book of Dead has 10 regular symbols, and players need to land at least 3 to trigger a win. The low end is represented by 10, J, Q, K, and A, which are known as Royals. The high end is represented by the bluebird, Anubis, the pharaoh, and the explorer. A Wild symbol, which substitutes regular symbols, is also featured. There is one bonus feature in the Book of Dead, which is Free Spins. To trigger it, players must land 3 or more Scattered Books. In this case, they will receive 10 Free Spins where you have a chance to get all the 5 reels filled with Expanding symbols. The free spins can be retriggered multiple times under the free spin round. Bets in Book of Dead vary between a minimum of $/£0.01, and $/£100, the volatility rate of this slot is high, and the maximum jackpot payout is set at 5,000x the stake. The RTP rate is 96.2%. PLAY FREE OR MONEY8. Guns N’ Roses As the winner of the best slot machine in 2017, Guns N’ Roses certainly has to be on this list, and once you have played this NetEnt masterpiece while rocking to the sound of the world-famous tunes written and produced by the iconic rock band, you will see why this slot is an award-winner. Popular due to great graphics, lucrative features, and a rocking soundtrack, Guns N’ Roses is one of those online slots that have to be tried at online casinos. The reel format is 5-reels and 20 paylines, and there is an RTP of 96.98%. It also comes complete with fun features such as expanding wilds, free spins, multipliers, wild symbols, scatter symbols, a bonus wheel, and a hugely entertaining bonus game. Whether you love the rock band or not, there is no doubt in our minds that you will enjoy the highly addictive action that it provides. PLAY FREE OR MONEY READ REVIEW9. Book of 99 (New) Why not play the best paying online slot machine with an impressive 99% RTP. Book of 99 is a new excellent slot release by Relax Gaming, and this Greek-themed slot game will allow you to explore the deepest mysteries of the tombs as you go on a quest for treasures. Once you access the game, you will spot a grid that contains 5 reels and 3 rows. Book of 99 is fully optimized for mobile and desktop use, which means that you can enjoy it on any Android and iOS device as well. The most prominent feature that Book of 99 has is its Return To Player. The RTP rate of this slot by Relax Gaming is 99%, which is quite astonishing. Not only that, but it does have a few fun bonus features. The first one is the Free Spins feature, in which you will be rewarded with 10 Free Spins if you land at least 3 Scatter symbols. The free spins can be retriggered. One random symbol is chosen as an expanding symbol during the Free Spins. The Wild symbol in the Book of 99 has two purposes. First, it can replace regular symbols, but it also fills up the Collection meter. Each time a Wild is landed, the Collection meter increases by 1 step. The Free Spins feature is also triggered when the meter is filled to 99. Book of 99 has 9 fixed pay-lines, and you can bet between a minimum of $/£0.10 and a maximum of $/£100. Once you’ve set the bet, all that is left is to spin the wheel. I have played this online slot machine a lot, and it pays back a lot more than other online slots. Book of 99 will definitely become a player’s favourite. PLAY FREE OR MONEY10. Planet of the Apes Planet of the Apes is another excellent slot from the NetEnt. Having been given the license to release a slot based on the popular movie franchise, NetEnt has once again churned out something of fantastic quality. Featuring dual-reels of 5-reels and 20 paylines apiece, one for each of the first two movies, Rise of the Planet of the Apes and Dawn of the Planet of the Apes, this unique feature-packed slot is already proving hugely popular among online casino players. Containing some of the best graphics and animations we have ever seen to date on an online video slot, Planet of the Apes has an RTP of 96.33%. In addition, it offers medium to high volatility, which means you can expect some very handsome payouts. Furthermore, complete with bonus features such as free spins, stacked wilds, scatter symbols and a bonus game for each of the two movies, there are plenty of different ways for you to bring in the wins. PLAY FREE OR MONEY READ REVIEW11. Jack and the Beanstalk A firm favourite amonghigh-rollers, Jack and the Beanstalk, is an older online slot still going strong at the online casinos. Popular due to a very high variance, which means a long time between payouts, which is usually huge when they arrive. You can see why players with big budgets love taking their chances on this NetEnt classic. With 5-reels, 20 paylines, an RTP of 96.30% and features such as free spins, scatter symbols, expanding wilds, walking wilds, and a bonus game, this beautifully animated 3D video slot has more than enough to keep most players interested. Despite being around for some time now, you will still find hordes of players enjoying it at the online casinos. Themed around that fantasy-based fairy-tale that we all remember as children, Jack and the Beanstalk, this slot has the complete package when it comes to video slots. Who knows, perhaps the magic beans could lead you to some ‘giants’ in terms of payouts. PLAY FREE OR MONEY READ REVIEW12. Wild Toro Having been released by ELK Studios at the end of 2016, Wild Toro has been earning rave reviews from many players at the online casinos. As a medium to high variance slot, Wild Toro is known for the big payouts that it can be dishing out. The jackpot on this online slot is a staggering 2,250x the total bet placed, and when you consider that you can bet as much as $100.00 per spin, you are talking about a potential payout of $225,000. That is not to be sniffed at, right?. Even if you don’t manage to take down that whopping jackpot, you still have the potential to find some other great payouts via a bunch of game features like walking wilds, wild symbols, and re-spins. As Wild Toro is a modern slot, you can also ensure that the graphics are all in HD and the animations are sublime. You can also be sure that this slot has been designed with mobile technology in mind, playable on almost any device capable of connecting to the internet and streaming games. PLAY FREE OR MONEY READ REVIEW13. Gonzo’s Quest If you were to ask any players that have been playing online slots frequently for many years to name five of the best slots of all time, we would bet that the majority of them would name Gonzo’s Quest by NetEnt among those five. The Gonzo’s Quest slot machine launched in 2010, the 20-pay line slot carries an RTP of 96.00%, and it has cascading reels, which means the symbols all fall into place from above. When wins are created, those winning symbols will disappear, and more symbols from above will fall into the spaces that were vacated. That cascading feature can bring in multiple payouts after each spin as the new symbols drop into place, but there are also multipliers that are attached to the rewards above the reels. After each consecutive win due to the cascading tiles, this multiplier increases by one, which means there is some good potential for big wins. Other bonus features on Gonzo’s Quest include free spins, wild symbols, and scatter symbols. PLAY FREE OR MONEY READ REVIEW14. Ted Ted is another popular online slot that has hitthe online casinosin the last few years, and there is an apparent reason why it is so popular. Bonus rounds – probably the most we have ever seen in an online slot. Developed by Blueprint Gaming, Ted is the online slot adaption of the hilarious movie of the same name about a talking teddy bear called Ted. With an RTP of 95.81% and a low to medium variance, you can expect some fast-paced action on this 5-reel, 20 pay line online slot, and you will soon see that there is never a dull moment to be had. When you land three scatter symbols on your reels, five different unlockable bonus rounds are unlocked. Every time you unlock the bonus round, you automatically move up to the next one, so you will need to unlock it five times to see all of them. However, it doesn’t end there as six other bonus rounds can occur randomly during any spin when the ‘Ted’ character wakes up from his sleep to give you the potential for some handsome payouts. Check it out if you have not already, as Ted has all of the attributes needed to be classed as a top-notch online slot machine. PLAY FREE OR MONEY READ REVIEW15. Divine Fortune Another slot that has become a favourite for many players out there is Divine Fortune by NetEnt. Having played it many times ourselves, we can tell you that the main reason for its popularity is the three different progressive jackpots that players have the chance to win. On top of that, this 5-reel, 20-pay line slot comes with an excellent RTP of 96.59%. The game also comes packed with awesome features such as free spins, expanding wilds, scatters, and wilds. In addition, the lucrative jackpot bonus game could award you as much as $/£100,000. A popular slot machine This online slot will continue to be popular for many more years to come, containing some excellent graphics and smooth animations. So if you have not tried it out yet for whatever reason, you should add it to your list for the next time you take a trip to your favourite online casinos. PLAY FREE OR MONEY READ REVIEW16. Poltava – Flames of War Poltava: Flames of War is another exciting online slot by Elk Studios that really does not get the credit that it deserves. Released in 2016, this slot machine continues Elk Studio’s tradition of creating online slots that are unique to anything else out there. What is particularly good about this high variance online slot is the unique bonus features, such as its lucrative Marching Reels Respin Bonus and Flames of War Free spins bonus. Each of these innovative bonus rounds is not only fun but also has the potential to pay out some fabulous wins. Graphically, this slot machine also has top-notch HD graphics, and the soundtrack is infectious. With an RTP of 96.4%, this 5-reel, 40-payline online slot is one of our favourite casino games, and we are sure that many players would agree with us. PLAY FREE OR MONEY READ REVIEW17. 1429 Uncharted Thunderkick Games have been making a big name for themselves over recent years. So this is due to the quality online slots they have been developing, and once you see 1429 Uncharted, one of their finest, you will quickly see why. 1429 Uncharted is packed with quality features and good visuals that have been designed creatively. The Slot machine also comes with fast-paced action, and 1429 Uncharted certainly deserves its place on this list. Among the biggest reasons for this online slot’s popularity at the online casinos is the superb return-to-player percentage of 98.6%. When you consider that low edge and add the fact that this online slot has a medium variance level, players really are getting some solid bang for the buck with their wagers. Throw in the possibility of being rewarded with up to 50 free spins and other excellent features such as stacked wilds and some gorgeous graphics and animations, and you have a great slot game to play. PLAY FREE OR MONEY READ REVIEW18. Motorhead Following on from the hugely popular Guns N Roses slot that you will also find in this best slots online list, NetEnt released Motorhead in 2016. One of the most anticipated online slot releases last year, this 5-reel, 76 pay line slot has definitely lived up to the hype. Fantastic graphics and a banging soundtrack are just the icings on the cake with Motorhead, as it’s what is underneath that impress the most. Packed with features and enjoyable gameplay, you just know that this slot machine will continue to be popular for many years to come. With a low-medium variance and an RTP of 96.98%, you can be sure that there is plenty of entertainment to have and some regular payouts for you to bank as well. Even if you are not a fan of heavy metal, you can turn down the volume and still enjoy the fantastic gameplay that this online slot has to offer. This is a list of the 30 best and most popular online slots, but this slot would be on the list even if we shortened it down to 20; it is that good! PLAY FREE OR MONEY READ REVIEW19. Bloopers Elk Studios feature quite prominently on this list, and that just goes to show how impressive they have been with the online slots they have developed. They have a creative flair, which is again demonstrated in Bloopers, another highly enjoyable and featureful online slot. With a healthy RTP of 96.1% and volatility somewhere between medium and high, this 243-ways-to-win slot has become a firm favourite with players at the online casinos. Bloopers are themed around a movie studio and all the goings-on, which occur when a new movie is in production. The free spins round is where the best action occurs. During the free round, you not only have sticky wilds that will no doubt help you to pick up multiple wins but there is also the chance of one of the main characters randomly activating one of four different additional bonuses. This could be anything between some extra free spins, falling symbols, and expanding wilds. We highly recommend trying Bloopers out as we feel it is one of the best slot releases. We are confident it will become a firm favourite among most of you! PLAY FREE OR MONEY READ REVIEW20. Sam on the Beach Elk Studios have built a solid reputation for themselves over the years for not just churning online slots out for the sake of it. Instead, they spend a lot of time on each slot. They do this to ensure that they are not only entertaining and lucrative but are also very different from what is already out there. Sam on the Beach is no exception to this rule and is easily worth a spot on this list. An RTP of 96.30% is pretty standard for a medium variance 243-ways-to-win slot. But as with most slots from Elk Studios, the real magic is in the fantastic game features. You have the Beach memories respin feature that contains sticky wilds, a free spins round, and a special bonus for each of the game’s characters which could be sticky wilds, sticky multipliers, bonus multipliers, and imploding symbols. Graphics are superb, and this Sam on the Beach has been designed to work on all computers and mobile devices no matter the operating system. All in all, this is a must-try slot machine for any player looking for a top-quality experience at the online casinos. PLAY FREE OR MONEY READ REVIEW21. Hot as Hades Microgaming has developed a fair amount of popular online slots down the years, and another title of theirs that deserves a place on this best list is Hot as Hades. Containing 5-reels and 20 paylines, this low to medium variance slot is mainly popular due to some fantastic bonus features. The Quest for the Crystal Helm is a five-tiered bonus round and is the pick of the features on Hot as Hades. Throughout the five levels, you will get the chance to win random payouts by choosing items to reveal what is beneath them. In addition, a free spins mode is also available to give you further potential for wins. You will also be impressed with the graphics that Hot as Hades has to offer, and while the Greek mythology theme has been done to death by online slots, this is definitely one of the best. PLAY FREE OR MONEY READ REVIEW22. Tarzan Having been developing online casino games since the start of the internet, you can be sure that Microgaming by now knows exactly what they are doing. Tarzan is another of their better online slots, and it always has plenty of players lining up to play it at the online casinos. 5-reels and 40-paylines are where the action takes place in this slot that has been themed around the famous Tarzan movie. Wild symbols, scatter symbols, a bonus wheel, free spins, random cash prizes, growing wilds, stacked wilds, rolling reels, and multipliers are among the extensive list of features that this 96.48% slot game has to offer players. On top of all that, a big local jackpot up to $/£/€40,000 for anyone betting the max bet of $40.00 per spin. To be able to win that massive jackpot of 1,000x, your total bet will require you to land five scatters on the reels at the same time. Tarzan is a great slot machine and one that every player should try out at least once. PLAY FREE OR MONEY READ REVIEW23. Jack Hammer 2 NetEnt is the second oldest online slot developer behind Microgaming. Over the years, they have developed some absolute classics. Jack Hammer 2 can be added to that best list because it has a good selection of features, some good HD graphics animations, and finally because of its very high RTP of 97.10%. As another of their Marvel-themed slots, this slot game theme is the famous Jack Hammer comic book hero. Despite being nearly ten years old, the Jack Hammer 2 slot machine is still going strong at online casinos. So, therefore, more than deserving of a spot on our top list. Anyone who wants the best value for their money will love Jack Hammer 2. So this is because online casinos will only have an edge of 2.90% on this game. Not only that, but with so many excellent features such as sticky wings, free spins, wild symbols, and scatter symbols, you know that you will have a shot at claiming some big wins on this 5-reel 99-payline slot. PLAY FREE OR MONEY READ REVIEW24. When Pigs Fly NetEnt has quite a few online slots on this top list. But when you consider they have been developing slot games for nearly twenty years, you would expect them to have mastered it by now, and a masterpiece is what When Pigs Fly slot machine is. This online slot is one of the best online slots. It is a 5-reel, 20 payline online slot that carries a medium variance and an impressive RTP of 97.00%, released in 2015. Since then, it has become a firm favourite at online casinos. So this is due to the excellent graphics it serves. And the free spins round increases the ‘ways-to-win’ after each of them. So when the free spins are awarded, you are essentially spinning with 3,125 ways to win. When Pigs Fly is undoubtedly a unique online slot, you will notice as soon as you see the reels in a cross-shaped format. We are big fans of uniqueness, and When Pigs Fly is worth being on this list. If you have not had a few spins on this slot before, you should add it to your list for your next visit to the online casinos. PLAY FREE OR MONEY READ REVIEW25. Pink Elephants Pink Elephants appears on this list as one of Tunderkick’s best releases. It has become surprisingly popular, and that popularity is probably down to several reasons. One of those reasons is that this is a 5-reel slot with 4,096 ways to win. Furthermore, Pink Elephants has a medium to high variance and a jackpot of 820,000 on offer. We all like the idea of having the potential to win amounts that have to be considered life-changing, and that’s what the Pink Elephants slot machine has the potential to do. A good number of game features will also be a factor in the popularity of this 96.1% RTP slot as there are lucrative free spins rounds and wild symbols and scatter symbols for players to take advantage of. We feel that this slot machine will be popular for quite some time, and for that reason, we feel it deserves to be placed on this list. PLAY FREE OR MONEY READ REVIEW26. Secrets of Atlantis Stunning visuals, smooth animations, a calming soundtrack, and an eclectic mix of bonus features are undoubtedly why so many VIP players love Secrets of Atlantis by NetEnt. In addition, you can also throw in a very impressive RTP of 97.10% and medium volatility as big positives for this online slot. All of the action takes place across 5-reels and 40-paylines. But most big wins will likely come from innovative features such as wild nudge symbols and colossal symbols respins. Upon first look, you will love the high-quality graphics that Secrets of Atlantis has. And the best part is that this online slot is designed with mobile players firmly in mind. So we suggest checking this slot game out if you have yet to do so. We are confident Secrets of Atlantis will become a big favourite for many of you. PLAY FREE OR MONEY READ REVIEW27. The Invisible Man NetEnt has once again another online slot that undoubtedly earns its place on this list. This time it is The Invisible Man, which is a 5-reel, 20-payline slot. The game contains some fantastic features such as roaming wilds, free spins, respins, a click me feature, and two unique bonus games. On this pay-both-ways slot with an RTP of 96.40%, you can expect some regular payouts due to a medium variance level. Furthermore, you will be able to add to that potential via the many features on offer. The fun bonus games are the Police spins bonus game, and a Griffins Rage bonus game, two unique bonus games. The Police spin, in particular, could see you net as much as 270,000 coins due to five flaming wilds appearing on the reels during the round. When you consider all of the above and then throw in some impressive graphics, you have an online slot that is a must-try for all types of players. PLAY FREE OR MONEY READ REVIEW28. Thunderstruck 2 Thunderstrike 2 has been a favourite online slot machine for many players for many years. Furthermore, it still holds up well despite the recent release of many other excellent slots. Microgaming is no stranger to producing top-quality online slots. Thunderstruck 2 is an oldie but still getting played a lot. It is a 243-ways-to-win online slot that could land mobile players as much as $2.5 million. With a healthy RTP of 96.65% and medium volatility, Thunderstruck 2 gives players plenty of potential for wins. The game has a local jackpot of 121,500 coins. In addition, players who play on the mobile version of this online slot stand a chance to win $2.5 million via several different bonus events. Three different bonus rounds are available for players: the Valkyrie bonus, Loki Bonus, and Oden bonus, with free spins and multipliers being awarded in emphatic style. We love this online slot even though it is an oldie. The game has excellent features, big potential payouts, and high-quality graphics that Microgaming is renowned for making. Even though the game is from 2010, it is still on many players’ favourite lists. We still think this is one of the best online slots. So if you have yet to try it, it is worth a try. PLAY FREE OR MONEY READ REVIEW29. Immortal Romance Immortal Romance has long been a favourite for many players that love to spend time at online casinos, and it is pretty easy to see why. This Microgaming title features fantastic graphics and animations. It has an RTP of 96.01%, which can rise to 96.86%. In addition, it has four bonus features that keep players more than interested. Immortal Romance is a 243-ways-to-win slot with a high variance. The game is themed around the trend of vampire/human love stories found in movies and TV series such as twilight. The game has four bonus games, and the four bonus features are where the best fun is. There are different bonus rounds for each of the four main characters featured in the online slot machine. Each bonus round is a different variation of free spins and multipliers. As well as fantastic features, Immortal Romance also provides players with a slot that has some excellent graphics and gameplay that is difficult to match. So check it out, and we are sure you will agree with our opinion to have it on this list. If this top list were only based on all-time popularity, we would have it among the top 20 games because of its popularity. PLAY FREE OR MONEY READ REVIEW30. Theme Park Tickets of Fortune Theme Park Tickets of Fortune by NetEnt is one of those online slots that we feel is underrated and does not get the credit it deserves. Released in 2016, this 5-reel, 25-payline slot has a lot going for it and is a slot machine game that we find highly enjoyable. Why is it so enjoyable? Due to many bonus features that can be found present in the slot. For example, there are six mini-games, stacked wilds, and a fun Claw feature. Couple those excellent features with HD graphics and animations that work seamlessly regardless of your device. Then you have an online slot that looks great and provides endless hours of fun. Theme Park is a low variance slot. That means regular payouts, and it has an RTP of 96.52%. So this makes it an excellent choice for those with limited budgets who want to enjoy some long-paced action at online casinos. PLAY FREE OR MONEY READ REVIEW31. Hong Kong Tower Hong Kong Tower is an online slot released in 2017. Some players have claimed that it was one of the best releases of 2017. Created by ELK Studios, this aesthetically beautiful 99-payline slot was designed in a mobile-first manner, and it looks fantastic no matter what device you are using to play it. Another big reason for its popularity is, no doubt, the big jackpot of 300,000 dollars/euros that is on offer if you bet the maximum spin amount. That is huge for a local jackpot and is essentially 3,106x the total spin bet. So it is not strange that so many players like this fun online slot. Hong Kong Tower does not let you down with its features either. The game is a 96.30% medium variance slot has stacked symbols, wild symbols, scatter symbols, and its main bonus feature, the Wheels of the Sky. Admittedly, a lack of free spins is a little disappointing at first, but these features more than make up for it. PLAY FREE OR MONEY READ REVIEW32. Jurassic World We all remember the blockbuster Jurassic Park movie franchise that made tons of money at cinemas worldwide. However, the online slot depiction of the latest movie is also massively popular due to paying out tons of cash for certain lucky players. Playable across multiple devices and platforms, this 5-reel, 243-ways-to-win online slot by Microgaming. It comes with brilliant graphics, ultra-smooth animations and a plethora of lucrative bonus features. With a medium variance level and an RTP of 96.38%, there is always a chance at some welcome payouts with features like wild symbols, scatter symbols, multipliers, a bonus game, and three different variations of a free spin round. Microgaming, the oldest casino games developer, has been known over the years for delivering online slots of the highest quality. Jurassic World is undoubtedly one of their best and deserves a spot on this list. PLAY FREE OR MONEY READ REVIEW33. Mega Moolah Almost anyone who has played online slots for an extended period will have heard of Mega Moolah or played it. This legendary progressive slot by Microgaming is so well known for its ability to pay out massive sums of money that it is fittingly known as the ‘millionaire maker’ at online casinos. Having been around since 2008, Mega Moolah actually holds the record for the single largest payout ever won on an online slot. That magic number was a staggering 17,879,645 euros. That would be $19,948,498.72 if you were playing in dollars. The jackpot was won by Englishman Jon Heywood back in 2015. The slot game has 5 reels, 25-paylines, an RTP of 88.12%, bonus features like free spins, multipliers, wild symbols, scatter symbols, and an excellent wheel spin feature. Playable via instant play through a browser or download, Mega Moolah is over ten years old and is still one of the most popular slots at online casinos. Would those huge progressive jackpots be the reason? PLAY FREE OR MONEY READ REVIEW34. Mega Fortune Dreams Jackpot It is easy to see why NetEnts Mega Fortune Dreams Jackpot is so popular. This progressive slot has an average jackpot payout of close to 4,000,000 dollars/euros/pounds. Furthermore, you can win three different progressive jackpots: the Rapid, Major, and Mega. Can you imagine what it would feel like to become an instant millionaire? A sequel to the mega Fortune jackpot, this is another popular progressive slot by NetEnt full of potential. It comes with excellent gameplay and plenty of bonus features. This slot has a 5-reel, 20-fixed payline reel format and perfectly sums up a NetEnt slot machine through great graphics and animations. Mega Dreams Fortune Slot is undeniably one of the most popular online progressive slots today. So this is because it has a 96.4% RTP, which is high for a progressive slot. You can also expect a flurry of features. Wild symbols are the key to re-spins. Furthermore, the Diamond scatter unlocks a free spins round with up to 20 free spins plus multipliers. For the Mega Fortune Bonus, you need the bonus scatter to open up the Mega Fortune Bonus Wheel, where you could win one of the progressive jackpots. If you don’t hit the jackpot, at the very least, you will come out of the bonus round with something to show. How can a slot with all of the above features, plus one that gives you the chance of winning life-changing money, not be on this top-ranking list? PLAY FREE OR MONEY READ REVIEW35. EggOmatic There is nothing like an online slot that tries to be different from the norm, and that’s why players love what EggOmatic from NetEnt has to offer. This unique 5-reel, 20-payline slot machine carries an RTP of 96.50% and is a medium volatility slot. Slot players love the enjoyable gameplay with decent payouts and great features. So this is precisely the reason for EggOmatic stands out on the slots scene. What is unique about this slot game is that to the reels’ right, you will see a dispenser that churns out eggs that then move across a conveyor belt at the top of the reels. Each of these eggs will represent a different feature you can unlock, including free spins. Once you land a Wild Rooster symbol on a reel, the egg and its feature above are triggered. Among the features in those eggs are free spins, random coin wins, wilds, and a random surprise. Despite being around for a good few years now, EggOmatic is still a popular choice at online casinos thanks to a great and unique feature bonus providing an experience that no other slot can. PLAY FREE OR MONEY36. Castle Builder II Bringing a close to this list of high-quality online slots is Castle Builder II by Rabcat and Microgaming. The game is a sequel to the massively popular original nominated for the EGR Game of the Year Award back in 2013. Only released a few months ago, Castle Builder II is themed around those kingdom-building games you can play on mobile, such as Clash of Clans. All of the action takes place across 5-reels and 15-paylines. The wins will continue flowing in at reasonable levels as soon as you start spinning away. So this is because the game is low to a medium variance slot machine. Furthermore, Castle Builder II has an RTP of 96.75%, which is more than solid. Castle Builder II features such as wild symbols, scatter symbols, and a Royal Wedding feature. The free spins come with a twist that has made this a favoured slot. Slot players that tend to be video game enthusiasts have flocked to this enjoyable slot. PLAY FREE OR MONEY READ REVIEWWhich Slot Developer Has the Best Games? The leader of the best online slots provider is still, for now, Netent. I would have hoped I could have added some more Microgaming slots to this ‘Top 30’ list. But unfortunately, it seems Microgaming has for some years forgotten how to make great, UNIQUE, exciting slot games. However, this has recently changed, and now in 2022, Microgaming has signed deals with 12 independent game developer studios. These studios are to create new exciting slot games for them.You can read more about this here. Admittedly, Microgaming has introduced some excellent new concepts over the last few years, including the none-payline 243 Ways to Win slot. Microgaming even shared the 243-Ways concept, so developers like Net Entertainment could release their slots using the no-payline idea. Coming in second, just being clipped by NetEntertainment, isElk Studio. They now have the 2 top spots on our all-time top list with the Wild Toro 2 Slot and Nitropolis 3. This up-and-coming developer has surprised us positively with the unique, exciting games they have made. I hope Elk Studio keeps up the great work. Having new slot developers like Elk Studios releasing new games with a different dimension to every one of their latest slots is a breath of fresh air. It also shows that Elk Studios have taken the competition seriously. The company has realized that every new release needs to be as unique as the last slot for its games to stand out in a competitive online slot machine industry. Well done, Elk Studios! Play’N Go These slots have always been one of my and many others’ favourite slot providers, and they make some of the best online slots out there. Moreover, they never seem to disappoint, releasing at least 1 to 3 of the best-released slot machines each year. Thunderkick They are also keeping up, but this slot developer is still not entirely up to the mark of Microgaming. Thunderkick is one of the newer developers on the scene, only breaking into the online slots industry in 2012 with some remarkably different slots. The diversity Thunderkick has added to the diverse array of online slots available is nothing short of brilliant. The company entered the slots industry with some daring slots that were relatively simple in design. However, Canadian and UK players loved the simplicity and took Thunderkick slots like a duck to water. Their fast-paced, action-packed themes have turned heads of the company’s inauguration into the online slots world. So keep your eyes peeled for more online and mobile slots from this developer because things can only get better. Last but not least Yggdrasil Gaming and Pragmatic are high-quality online slot makers. They create some of the best slot machines online. Furthermore, many of the games they make are highly volatile slots, which means less often wins, but chances of big payouts. For example, pragmatic’s The Dog House Megaways Slot is one of their top highly volatile slot games. And for Yggdrasil Gaming, the gameAge of Asgard, both listed in the top 5 above and is definitely worth a try. Rounding It All Up Thank you for reading, and I hope you enjoyed our ‘Top 30’ online slots list. We have been playing slots for over 20 years now, and we decided to combine all our experience to create this comprehensive list of the best online slots. Please enjoy, and send in any comments if you feel we missed anything! We would love to hear your opinion because we know that there are many online slot players out there, and our list may not mention your favourite slots. Furthermore, if you have a favourite online slot machine that is not on our list, we would love for you to share it with us. and let us know why you think we should include it on OnlineCasinos.net’s Top 30 Online Slots list. We will be updating the top list several times each year. Commonly Asked Questions About The Best Online Slots FAQ Which online slots are you playing right now? We are mainly testing new slots online; however, when we have spare time, we always end up playing Nitropolis 3, which is one of the most fun online slots ever made. How to win at slots online Can I play the above games for free? Yes, you can go to the online casino under each of the above slots, and they will also have the option to play free. Do I get a welcome bonus if I use the above links? You sure do; all the above links will get you a welcome bonus, and some online casinos even have exclusive bonuses available to all onlinecasinos.net users. You might also want to read: