Every slot site has a hefty collection of these games for free since it’s the most popular and accessible type. Players can access the best slot games with progressive multipliers, jackpots, FS, and more features. On this page, our Slotsjudge team prepared an online casino rating with a great slot choice.
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Top rated
1
Spinline Review
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Welcome offer: max. 100% up to €3,600 + 1,100 FS
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18+ | New players only | Terms Apply | Please play responsibly | gamblingtherapy.org |
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Top rated
2
Melbet Review
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Welcome bonus: max. 200% up to €1,750 + 290 FS
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18+ | New players only | Terms Apply | Please play responsibly | gamblingtherapy.org |
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Top rated
3
Caswino Review
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Welcome Package: max. 175% up to €4,800 + 255 FS
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18+ | New players only | Terms Apply | Please play responsibly | gamblingtherapy.org |
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4
Rolldorado Review
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Welcome bonus: max. 100% up to €450 + 250FS
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18+ | New players only | Terms Apply | Please play responsibly | gamblingtherapy.org |
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5
Bitkingz Review
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Welcome bonus: max. 150% up to €5,000 + 500FS
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18+ | New players only | Terms Apply | Please play responsibly | gamblingtherapy.org |
Online slots are casino virtual gaming machines with certain payout mechanics based on RNG. These can be winning symbols on 20 paylines, Megaways, clusters, pay-anywhere, and more. When you form a winning combination, the online slot game pays according to the symbols’ value. Additionally, you can enter certain bonus rounds to reveal a higher winning potential.
Beginners enjoy free slots for their simplicity, fast pace, and gameplay which doesn’t require strategies or specific knowledge. This game type is not only popular but also legal. Slot sites offering these games have a license from the UK Gambling Commission or other regulators.
When you combine the knowledge of the best slots and online gambling sites where to play them, it translates into a safe and thrilling online casino experience. Our team is here to help with this, providing a fair casino rating of the sites we’ve tested. These sites offer thousands of slot machines for all tastes, categories and filters to sort them, and thrilling bonuses for existing and new customers to spend in top games. We’ve analysed these casinos for you, so you can compare their parameters and start playing.
| Casino Name | Available Number of Slots |
|---|---|
| Hellspin | 3,000+ |
| Asino | 6,000+ |
| 7bit | 9,000+ |
| Legiano | 11,500+ |
| Nine Casino | 6,000+ |
| Plangames | 12,000+ |
| Spinline | 15,000+ |
By testing each online slot site in person, our experts consider all the crucial details which influence players’ gameplay. In the blocks below, we explain why these factors are important and how we check them.
We won’t recommend an online casino without licensing. The presence of UKGC, MGA, and licenses from other regulators guarantees a safe experience. An online slot site must meet the regulator’s standards to obtain the license, which translates into secure gameplay. Furthermore, we check other qualities which influence online gaming safety, including AML and KYC. Our experts also check the presence of RNG certificates like eCOGRA proving that slots pay according to their determined RTP and guarantee fair outcomes.
The selection of slots available on the site is just as important. First, we check the number of games and the list of providers. While some operators can offer 3,000+ games, others boast a collection of 10,000+ titles. Then, our team pays attention to navigation. We check the presence of filters by slot types, such as new or jackpot. When there are more advanced filters by volatility or RTP, it’s a plus. It’s also good when the online casino offers a collection by themes or extra tags for titles participating in slot tournaments.
A good online slot site should feature a variety of deposit and withdrawal methods. We analyse their diversity, considering types like e-wallets, bank cards, prepaid vouchers, and cryptos. Additionally, our experts check whether these options have user-friendly limits and don’t charge fees. We also read T&Cs to make sure that the site doesn’t set a sky-high deposit turnover of over 3x, has reasonable verification requirements, provides flexible withdrawal limits, and quickly processes transactions.
Our experts analyse the promotion program to make sure that the online slot site has good bonuses. Be it a welcome bonus for a new player or a range of reload offers, we check whether these promotions are compatible with popular slots. Additionally, we consider the turnover, deposit limits, the maximum cashout, and the betting limit while wagering. The types of available bonuses are also important. We pay attention to Free Spins compatible with top slots, no deposit offers, and other types.
By testing both the slot site and its software on mobile, we reveal whether they are responsive enough. We test each online casino on iOS and Android, providing an objective ranking for mobile players. The factors we consider during this research include the upload time on a smartphone or a tablet, the presence of a casino app, interface, and navigation adjusted to small screens. Considering HTML5 applied by top providers, the diversity of mobile-friendly slots is huge.
Knowing the market trends and our readers’ preferences allows our experts to reveal the top 5 slots to play online. We prepared this ranking, considering their features, RTP, winning potential, and graphics, so you can be sure that the gameplay will be engaging.
| Slot Name | Theme | Reels | Paylines | RTP | Where to Play |
|---|---|---|---|---|---|
| Gonzo’s Quest | Historical | 5 | 20 | 96.0% | Hellspin |
| Dead or Alive 2 | Wild West | 5 | 9 | 96.8% | Spinline |
| Starburst | Gems, Space | 5 | 10 | 96.1% | Playfina |
| The Dog House Megaways | Pets | 6 | 117,649 | 96.5% | 7bit |
| Jammin' Jars | Fruits | 8 | Cluster Pays | 96.8% | Lucky Hunter |
The more slot types are in the casino’s lobby, the more engaging the gameplay. Large slot sites offer online titles of different types. These can be classic titles, new slots, 3D games, and more. We rate a slot collection considering the diversity of mechanics. This allowed our team to reveal the most popular slot types.
If you’ve ever seen slots with sevens, burning fruits, and other traditional elements, then you know what classic slots look like. Though they used to look like this since they were old casino games, new online slots can also feature these vibes. In most cases, these slots have 3 to 5 reels and up to 20 paylines. We’ve tested the most popular classic slots to highlight their features.
When it comes to video slots, they are much more vibrant and diversified. When such slots feature fruits, their graphics are more advanced. The same is true for other themes. The sound effects of video slots are also outstanding; players can feel the atmosphere of fun, battles, and other action.
Popular slot sites feature at least several games with Megaways mechanics patented by BTG. The main parameter of Megaways slots is the presence of up to 117,649 ways to win, or even more. This doesn’t mean that you play with this number all the time since it’s the maximum potential revealed after a consecutive range of cascades.
Appealing 3D games are usually in the lobbies of new slot sites since their graphics and themes are catchy. In such slots, animals turn into realistic characters. When talking about 3D slots, players are immersed in the atmosphere of the game. Our research allowed the experts to reveal these popular 3D titles:
High-quality providers focus on mobile players, creating cross-platform games. A mobile slot site will allow you to access these games with a few taps. Thus, your iOS or Android device will let you enjoy a virtual journey to any slot. Here are the top slots we tested on mobile.
This volatility level provides for infrequent yet large wins, compared to low-volatility slots which are the opposite. Games with high volatility suit high rollers rather than new players who want to test a slot site. The winning potential of high-volatility online slots is above average. Your bankroll should be big enough to test such games.
Thanks to the diversity of themes on slot sites, any player can find the best option for themselves. Pretty often, the sites have collections by themes or extra filters for certain topics. You can try your hand at fruit, Egyptian, Irish, and many other themes. They will feature not only the background matching the theme but also corresponding symbols, sound effects, and thematic features.
Vibes of the Ancient Egypt culture are never too old for slot sites. Mechanics and the graphics quality may vary, but all these slots feature temples full of treasures, Egyptian gods, mummies, and archaeologists hunting for gold and books revealing ancient secrets. Legacy of Egypt by Play’n GO introduces players to mighty animals-gods like Annubis. The background of the slot features pyramids, which adds to the atmosphere. In Sun of Egypt 2 Hold and Win by 3Oaks, you will deal with the pharaoh and his gold. The 9 Happy Pharaohs slot by Playson is different. It’s a traditional slot which combines symbols of the Pharaohs with fruits and sevens.
If you are fond of cherries, watermelons, and other fruits, then these slots are for you. In some cases, it’s a classic slot with a simple design where fruits aren’t different from symbols on old slots in casino halls. For example, Fresh Fruits released by Endorphina in 2014. However, some slots dedicated to fruits can have more modern graphics. Betsoft introduced Fruit Zen, which features 3D symbols and an appealing seashore background. Thunderkick also released an engaging fruit slot in 2014. It’s Fruit Warp where 3D fruits are floating to form a warp of 4+ symbols. It has not only common but also exotic fruits, such as durian and dragon fruit.
Your slot site is certain to feature games dedicated to different animals. These games are best for players fond of pets or animals of the forest. Some of them invite players to the farm, such as Fabulous Farm Slot by Mascot Gaming. The grid is based in the countryside inhabited by rabbits, cows, goats, chickens, and other farm animals. Rainforest Gold by NetEnt has a different theme since its animals are wild. The gameplay takes place in the jungle, so you will meet tigers, hippos, gorillas, and other wild creatures. In some cases, animals will have specific roles. For instance, the Rogue Rats of Nitropolis online slot by ELK Studios features cool rats who are racers on bikes.
Adventures with pirates are striking for both regular and new players since the graphics of such games are amazing. These online slots bring players to different locations. Pirate Gold by Pragmatic Play has its layout in the sea, so you can see ships behind the reels. Endorphina created the Ice Pirates slot which is different since its characters are in the cold land. Even card symbols on the reels are frozen. When it comes to Pirates’ Bounty Megaways by Blueprint Gaming, the slot invites online players to the ship. You will form combinations of pirate-themed coins, Jolly Rodger signs, and other elements matching the overall theme.
Here’s one of the best slot online themes for those fond of green leprechauns and pots of gold. Your slot site may have thematic collections to sort games of this kind. Some Irish slots are classic, such as Irish Eyes by NextGen Gaming. Its reels feature simple graphics yet popular Irish elements like a pot of gold, a clover, and a leprechaun. Players who want to experience modern graphics can try out Leprechaun's Magic Megaways by Red Tiger. It invites existing and new players to the magical forest. The symbols are appealing, featuring the leprechaun, his pipe, and other 3D elements. We should also mention Joker Leprechauns by Kalamba Games which is best for the fans of Irish and fruit themes.
When you want to play slots based on popular characters, then the TV or movie theme is a perfect choice. Rick and Morty Wubba Lubba Dub Dub by Blueprint Gaming is a slot of this kind. You will meet not only the doctor and his friend but also Mr. Sanchez who turned himself into Pickle Rick. The Goonies by Blueprint will suit you when you appreciate old movies. The slot allows players to start an expedition, looking for treasures of the sunken ship. Another movie-based slot by Blueprint is Ted. This cool bear will be in front of the reels during the entire session. NetEnt also has a patent for creating slots based on popular TV shows, such as Hell’s Kitchen.
What about a virtual trip from your slot site to Olympus inhabited by gods of Greek mythology? Or maybe you would like to meet other mythology creatures? With slots dedicated to such themes, you’ll gain the best experience of this kind. The Greek mythology is perfectly displayed in Gates of Olympus 1000 by Pragmatic Play. Zeus is displayed on the right to add bonuses to the grid and on Scatter symbols. Divine Fortune by NetEnt is focused on mythological creatures, including Medusa. Another slot of this theme is Mythological Mayhem by Armadillo Studios. It also displays the guards of Olympus, so the symbols feature helmets, arrows, and other weapons.
Such slots are the best option for players who want to tickle the nerves. All slot sites have at least some games about ghosts, monsters, and other evil creatures. For example, Ghost of Dead by Play’n GO is a blend of Egyptian elements like scarabs and the horror pharaohs. Serial by Nolimit City has a bit of a different horror plot since it displays a maniac rather than mythical creatures. If your favourite evil creatures are vampires, then slots like Blood Suckers by NetEnt will meet your preferences. Its symbols include garlic, a book of spells, and the vampires themselves. Other creatures you may meet in such online slots include skeletons, zombies, mummies, and more.
Unlike online titles with fixed winning potential, progressive jackpot slots have a prize pool which increases after each real money bet. In most cases, it has a seeding amount; the prize pool starts from this number and keeps on growing until the jackpot is randomly hit by any player. On February 26, 2024, a lucky player won €6,689,308 on the Mega Moolah slot. Popular jackpot networks include Mega Moolah, Major Million, WowPot, and others. Slot providers offering jackpots include Games Global, Yggdrasil, NetEnt, Belatra, Betsoft, and more. We should warn you that such slot games have a lower RTP since a certain percentage of each real money bet is contributed to the progressive pool.
| Casino | Progressive Slots the Casino Has | Start playing |
|---|---|---|
| Hellspin | Bounty Hunters, Lucky Clover, Lost Treasure | PLAY |
| Playfina | 3 Hot Chillies, Hold The Gold, Thunder Wolf Link | PLAY |
| Spinline | 25 Coins, Egypt Sun Deluxe, 777 Coins | PLAY |
| Lucky Hunter | 40 Super Hot, Coin UP: Hot Fire, Tiger Gems | PLAY |
| Asino | Art of Gold, Jack Potter, At The Copa | PLAY |
You can start your slots adventure by exploring our review and following a few tips. We prepared this guide, considering our experience and the difficulties newbies may face when playing slots for the first time. Thus, you can avoid common mistakes and start playing online with a better understanding of payout mechanics and other rules.
During the base game, you should consider paytable values and payout mechanics. This way, you will understand how the slot pays. Here’s an example for 20 paylines with symbols paying for 3+ ones on a line. You need to land 3+ symbols of the same value on an active line, which should form a combination from the leftmost reel. If the slot has other payout mechanics, such as pay-anywhere or clusters, you can reveal them in the menu.
The slot’s menu also displays information about bonus rounds. You can learn whether the feature requires certain bonus symbols or can be triggered randomly. For example, Free Spins may require 3+ Scatters, a filled meter, several consecutive wins, or other conditions, depending on the slot. In some cases, you don’t need to do anything to enter the bonus round, and sometimes, you can buy the bonus for a certain value (e.g., 100x).
Other bonus features you can experience include the Gamble round when you are prompted to guess a card suit to double the winning amount, extra multipliers, sticky Wilds, and more. Some slots have rounds with fixed jackpots, and others are connected to progressive networks like WowPot. This means that a random spin can hit a progressive prize pool.
The best slot site will let you play top slots with an extra bonus. This allows existing and new customers to play a certain slot for bonus funds rather than real money and withdraw winnings after wagering. The types of such promotions vary, and our experience shows that these are the most common ones:
Players should remember that slot games are random, so no strategy or tip can beat the house edge in the long run. Nevertheless, our experience shows that the knowledge of the gameplay mechanics and some other tips can make the gameplay smooth and secure. We considered this to prepare a list of tips for playing real money slots online:
When the online slot site is supplied by leading providers, the gallery is rich in games for all tastes. Thus, we took into account our readers’ preferences and the market trends to reveal the best providers of slots. We also add their top slots and a short explanation of why these games and providers are worth trying.
The Yggdrasil provider has been impressing slot fans since 2013. Its strong sides include 150+ slots, appealing 3D graphics, and unusual slot configurations, including the 1-2-3-4-5-2 layout of the Valley Of The Gods 2 slot. It also has DoubleMax series and several progressive jackpot slots.
| Slot | RTP | Volatility | Topic |
|---|---|---|---|
| Vikings Go Berzerk | 96.10% | Medium | Vikings |
| Raptor Doublemax | 96.01% | High | Dinosaurs |
| Jackpot Raiders | 96.30% | Low | Adventures |
Operating since 1997, Play’n GO is one of the pioneers in slot development. Its multiple licenses include MGA, UKGC, Gibraltar, and more. Additionally, it holds RNG testing certificates, including QUINEL and BMM Testlabs. Over 400+ slots have multiple mechanics and features, including clusters and expanding Wilds.
| Slot | RTP | Volatility | Topic |
|---|---|---|---|
| Book of Dead | 96.21% | High | Archeology |
| Reactoonz | 96.51% | High | Aliens |
| Moon Princess 100 | 96.20% | High | Anime |
Known as Microgaming in the past, Games Global is one of the oldest slot developers established in 1994. It’s popular for its progressive jackpot slots connected to Mega Moolah and WowPot networks. The library has both traditional slots and 3D titles with modern features.
| Slot | RTP | Volatility | Topic |
|---|---|---|---|
| Jungle Jim El Dorado | 96.31% | Medium | Jungle |
| Break da Bank Again | 95.43% | High | Money |
| Immortal Romance | 96.86% | Medium | Medium |
Another leader of the iGaming market is the NetEnt Swedish brand. It was established in 1996 and has been acquired by Evolution. It has several licenses, including UKGC, and over 430+ slots in the library. Divine Fortune is one of its progressive jackpot slots. Its popular features are cascades and progressive multipliers.
| Slot | RTP | Volatility | Topic |
|---|---|---|---|
| Gonzo's Quest | 95.97% | Medium-high | Aztecs |
| Starburst | 96.09% | Low | Space |
| Dead or Alive 2 | 96.82% | High | Wild West |
This slot provider has been around since 2010. Its 75+ slots have popular sequels, such as Razor Shark, and multiple bonus features. Its licensing list includes UK Gambling Commission and AGCO. Most games have vibrant themes with different characters, features like increasing bonus symbols, and winning potential of over 10,000x.
| Slot | RTP | Volatility | Topic |
|---|---|---|---|
| Fat Rabbit | 96.45% | High | Farm |
| Razor Shark | 95.05% | High | Underwater |
| Shamrock Saints | 96.30% | Medium-high | Ireland |
Players can come across slot sites that offer tournaments on certain occasions or on a regular basis. These are events with a certain prize pool, selected slot games participating in the tournament, and conditions to qualify. For example, you may need to play featured slots with a bet of at least €0.30 and compete with other players. Those who placed the largest amount of bets win. Other forms may require the largest number of bets within a certain time period (e.g., an hour) or conditions like reaching a bonus round first.
Usually, a tournament features at least 10 winners, so the prize pool is distributed accordingly. Some events are arranged by a particular provider, while others can be launched by the slot site. They can be dedicated to holidays or other occasions, featuring slots with such a theme. For instance, Drops & Wins is a regular event held by Pragmatic Play. It includes a wide range of slots by the brand and has not only daily but also weekly prizes.
Online slots are simple to understand, but it’s worth learning basic terminology to understand how they work and what to expect from the gameplay. We’ll explain the most common terminology with examples to help you better understand slots.
| Terminology | Explanation |
|---|---|
| Cluster | Clusters are one of the ways of how slots pay. Mainly, 5+ symbols adjacent to each other horizontally or vertically form clusters. The more symbols in such a combination, the larger the payout. |
| Free Spins | Free Spins are one of the most common bonus features on slots. These are bonus rounds played usually launched by Scatters and played at a bet which used to be active in the main game. |
| Jackpot | It’s the largest prize of the slot available within a bonus round. Depending on the slot type, it can be a fixed jackpot (e.g., 1,000x) or a progressive pool increasing after each real money bet. |
| Megaways | Patented by BTG, Megaways are payout mechanics which form up to 117,649 ways to win. Each spin has a random number of lines which increases for consecutive clusters. |
| Minimum and maximum bets | Each online slot has betting limits, which usually range from €0.10 to €150. However, some slots may have much lower limits of €0.01 and €200+ limits for high rollers who prefer large bets. |
| Paylines | These are the ways symbols should land to form a winning combination. Depending on the slot type, the number of paylines is regulated by players (e.g., 1 to 20) or set by default. |
| Reel | It’s a vertical element of a slot machine which rotates once you start a new round. Classic slots usually have 3 to 5 reels with 3 to 4 symbols each. You can come across bonus features like Infinity Reels. |
| RNG | Random Number Generator, also known as RNG, is a technology applied by software developers to provide random and fair outcomes in slot games. It can be proved by independent labs like GLI and eCOGRA. |
| RTP | The Return to Player score determines the percentage of a real money bet paid to players and the house edge. A 96% RTP means that €96 out of a €100 bet is returned to players, and €4 is left to the casino. |
| Scatters | These are symbols which pay anywhere on the grid rather than on a payline. Most often, they serve as bonus symbols triggering Free Spins. For example, 10, 15, or 20 FS for 3 to 5 Scatters. |
| Volatility | This parameter determines the frequency and amount of winnings. Low volatility brings frequent yet small rewards, while high variance is for large yet infrequent wins. Some slots have adjustable volatility. |
Slots are secure and fair when you play them on a licensed casino site. Providers which work on slot game development hold several iGaming licenses. They are regulated by the UK Gambling Commission and have certificates from MGA, Gibraltar, and other regulators. Additionally, providers obtain certificates from iGaming labs like iTechLabs proving that the RNG is working properly. The slot site must also have licensing to guarantee safe gameplay. All these aspects prove that slots have random and non-influenced outcomes of all rounds. By choosing a secure online casino with licensed software, players don’t have to worry about rigged games or problems with withdrawals of winnings.
Reputable slot providers develop games using HTML5. This makes a huge number of slots mobile-friendly. You can open the casino’s site through your iOS or Android browser. The slot count is usually the same you can access on a desktop. By tapping on the screen, you can adjust the bet size, open the menu, and activate all the other slot’s features, including autoplay settings. When a casino slot site has an app, you can install it to play online the same games on your phone through an application.
