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The Best Online Slots Casinos & Games

Online slots account for 68% of casino wagers on the internet, making them by far the most popular game around. With dozens of top sites offering hundreds of exciting titles, it’s hard to choose the right option. Take a spin with us, then, as we explore all aspects of the best online slots casinos.

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The Best Slots Casinos

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Interesting titles


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Online vs Offline

Benefits of playing online

This page will provide a guide to getting started at online slots casinos for any beginners who are interested in making an account at one of the best slot sites, as well as show you how to make a deposit. For more information about related topics, check out these articles.

Best Slots Sites for Players

If you want to play the most interesting and exciting online slots, you should check out these top six best slots casinos. Here, you will find hundreds of games to play with real money, in themes spanning from classic to modern, fairy tales to music, and everything in between.

What’s even better is these games are playable with loads of online slots bonus offers. First things first, though, let’s have a look at the best slots casinos out there right now.

My Top 6 Slots Online Casinos 2021
Casino Bonus Offer Top Slots / RTP Rating Secure Link
Up to £25 + 20 Spins 700+ Mega Moolah 97.23% 5/5 Claim Bonus!
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Up to $50 for Each of First Three Deposits 500+ Mega Moolah 96.36% 4.9/5 Claim Bonus!
100% up to $140 Playable on Exclusive Games 200+ Millionaire Genie 96.60% 4.7/5 Claim Bonus!
100% up to $100 + 10 Free Spins on Starburst 700+ Mega Moolah 94.77% 4.6/5 Claim Bonus!
100% up to $400 + 200 Free Spins 200+ Age of the Gods 96.33% 4.4/5 Claim Bonus!

As you can see in the table, all of the operators have something slightly different to offer in terms of the available games, return to player rates and welcome bonuses, which I’ll explain further down the page.

If you’ve looked at the bonus conditions for a casino and are ready to begin, click the appropriate Claim Bonus button in the table above. Here are the simple steps for setting up an account and getting your hands on a welcome promotion.

Sign Up

Registering for an online casino account is a simple process.

More information: Sign Up

Make a Deposit

Make your first deposit when you’re ready to begin playing.

More information: Payments

Claim a Bonus

Claim the casino’s welcome bonus if you so desire.

More information: Bonus

There are a lot of topics related to online slot games that I decided are worthy of a dedicated article, due to the depth and breadth of the theme. You can take your time to read through these pages by clicking through on the topic of interest below.

It’s difficult to a complete overview of the best real money slots on the online market, as there are so many out there. So, without further ado, here is a complete list of the top 204 most popular and most played online slots.

Browse them in any order you please, or click through for a full individual game review and best slots casinos for each title. You will also find free demo versions of each game in their respective reviews.

Top 266 Most Popular and Most Played Online Slots
Top 266 Most Popular and Most Played Online Slots
Starburst Mega Moolah Gonzo’s Quest Game Of Thrones 243 Cleopatra Terminator 2 Gladiator Mega Fortune Buffalo Blitz Spinata Grande Millionaire Genie Miss White Pixies Of The Forest Jack Hammer 2 Beach Life Monty Python’s Spamalot Arabian Nights Everybody’s Jackpot Thunderstruck 2 Psycho Cats The Dark Knight Reel Rush Jackpot Giant Immortal Romance Hot As Hades Major Millions Dazzle Me Da Vinci Diamonds Rainbow Riches Hall Of Gods Fei Cui Gong Zhu Pharaoh’s Fortune Pink Panther Tomb Raider Dragon’s Myth Lucky Leprechaun Foxin’ Wins Gold Factory Apollo Rising Jack And The Beanstalk Avalon Frankie Dettori’s Magic Seven Lights Siberian Storm Big Bad Wolf 7s To Burn Action Bank Aztec Warrior Princess Cirque Du Soleil Kooza Classic 243 Cosmic Fortune Dragon Sisters Elvis King Lives Epic Monopoly 2 Flame Busters Forbidden Throne Fortune Girl Funky Fruits Genie Jackpots Green Lantern Guns N Roses Hansel And Gretel Hong Kong Tower Jekyll And Hyde Jimi Hendrix Jungle Jim El Dorado Karaoke Party King Cashalot Lost Vegas Lotsaloot Magic Castle Man of Steel Mega Fortune Dreams Mega Jackpots Star Lanterns Monty Python Holy Grail Motorhead Octopays Panda Pow Power Force Heroes River Of Riches Scruffy Duck Secret Romance Shangri La Slots O’ Gold Star Fall Superman The Movie Sweet Party Tarzan Ted Temple Quest Top Cat Warlords White Buffalo White King Wild Gambler Wild Neon Worms Reloaded Big 5 Fortune Cookie Wheel of Fortune Golden Dragon Party Time Pharaoh’s Treasure 8th Wonder Alice Adventure Beowulf Big Wheel Esqueleto Explosivo Firestorm Munchers Panda Mania Pearls Of India Platoon Rage To Riches Robyn Taco Brothers The Wizard Of Oz: Road To Emerald City Turning Totems Viking Runecraft Wild Toro Wu Xing Zeus Lucky Dice 3 Luxury Life Mystery Of Eldorado Sugar Glider Dice Sugar Glider Bonanza Book of Ra Crime Scene Dead or Alive 2 Dead or Alive Demolition Squad Extra Chilli Golden Goddess Judge Dredd Mermaids Millions 9k Yeti Aladdin and the Sorcerer Big Bounty Bill Carry on Camping Blood Suckers Butterfly Staxx Goldilocks Joker Pro Monopoly Big Event Neon Staxx Rocky Thunderstruck Twin Spin Wild Wild West Wolf Run Book of Dead Divine Fortune Book of Gold Classic Book of Gold: Double Chance Book of Gold: Symbol Choice Burning Wins: Classic 5 Lines Rome: Caesar’s Glory Crystal Land Fruit Xtreme Fruits & Jokers: 100 Lines Imperial Fruits: 100 Lines Legend of Cleopatra Rise of Egypt Sevens & Fruits Online Solar Queen Vikings Fortune: Hold and Win Vikings Go Berzerk Da Vinci’s Mystery Dragon’s Luck Megaways Dynamite Riches Dwarfs Gone Wild Eagle Riches Jewel Scarabs Legendary Excalibur Lucky Oktoberfest Winter Wonders Dragon’s Fire Megaways Mega Rise Mystery Reels Megaways Mystery Reels Power Reels Phoenix Fire Power Reels Pirates’ Plenty Battle for Gold Reel King Mega Wild Elements Cat Queen Neptune’s Kingdom Racing for Pinks High Society Bomber Girls Irish Luck Creature from the Black Lagoon Finn and the Swirly Spin The Wish Master Phantom’s Curse Castle Builder Dragon’s Fire Dragon’s Luck Power Reels Dragon’s Luck Jack in a Pot Mystery Reels Pirates’ Plenty Rainbow Jackpots Treasure Mine Centurion Danger! High Voltage Eye of Horus Fishin’ Frenzy Fluffy Favourites Fruit Gold Rush Gold Jammin’ Jars Reactoonz Reel King Shaman’s Dream Spartacus Star Spinner The Goonies Vikings Who Wants To Be A Millionaire? Winstar Wish Upon A Jackpot A Night Out Age of the Gods Asgardian Stones Avalon II Break Da Bank Football Star Fruit Case Grand Monarch Happy Bugs Muchos Grande Amazon Wild Boom Brothers Cashville Diamond Queen Dracula Halloweenies Mad Hatters Mr. Cashback Reel Rush 2 Super Nudge 6000 The Mummy Lucky Wizard Pirate Gold Stampede Wild Antics Wolf Legend Megaways Lost Relics Balloonies Farm Count Duckula Fluffy Favourites Giants Gold Deco Diamonds El Torero Emperor of the Sea Gold King Lost Island Hotline Kronos Lucky Little Devil Pharaoh Spinal Tap Sticky Bandits Blazing Riches

The Highest Real Money Slots Payout Rates

The return to player (RTP) of an online slot game is one of the most important things to understand when trying to select from the thousands of options out there. This figure, described as a percentage, indicates how much of the wagered money will be paid out to the player base over time.

The important thing to remember is that this number is theoretical. As such, it is not directly related to the chances of your winning at each spin. The closer to 100%, however, the fairer the game is to its players overall.

Slot Machines with the Highest Payout rates
# Online Slot Payout Paylines Developer To the Casino
1 Big Bad Wolf 97.35% 25, fixed Microgaming
2 Jack Hammer 2 97.1% 99, fixed NetEnt
3 The Classic 243 97.00% 243, fixed Microgaming
4 The Dark Knight Rises 97.00% 243, fixed Microgaming
5 Reel Rush 97.01% 3125, fixed NetEnt
6 Wild Gambler 97.00% 20, fixed Playtech
7 Guns N Roses 96.98% 20, fixed NetEnt

This table provides a great look at the best online slots games and suggests a leading casino where you can play it right now for real money. You can also see which provider created each game so that you can get a feel of which company might suit your tastes.

You’ll see that no jackpot games are included on the list, which is not surprising as jackpots usually have among the lowest RTPs, to balance the fact that they sometimes pay out enormous sums of money. I’ll explain how RTP rates are tested later on the page.

Games With High Maximum Wagers

Of course, one of the main reasons gamblers love to play slots for real money is the potential for winning fat stacks of cash. The different games will have individual ways of working out how much they pay out, but the general rule is that the higher the wager, the higher a winning payout.

The lowest bets you can place is 1p, 1c or the equivalent in your currency per line, while some of the higher limits are much higher, reaching a max bet of £/$500 or more. The table below highlights some of the best slot games with high maximum bets, and the sites where you can find them.

Online Slot Machines with the Highest Betting Limits
# Online Slot Max Bet RTP Developer To the Casino
1 Buffalo Blitz £500 94.00% Playtech
2 Reel Slots £500 95.00% Barcrest
3 Emoticoins £25 + 20 Spins 96.01% Microgaming
4 Forbidden Throne £200 96.01% Microgaming
5 Halloween £200 96.01% Microgaming
6 Butterfly Staxx £200 96.80% NetEnt

Unsurprisingly, one of the many benefits to playing slots online is that the limits tend to be wider than in land-based casinos. It is important to set your own budget of how much you are willing to bet for each spin and check carefully before every turn to make sure you have selected the right amount.

The Best Slots Loved at Online Casinos

When choosing from the thousands of online slots online, do you pick the most entertaining, or the one with the biggest prizes? Well, there are actually plenty of games where both factors go hand in hand. You can also choose games by style or theme.

With that in mind, here are the best slots that sites will have in their portfolios, which are not only fun to play, but also have some impressive and innovative features that keep things interesting and fresh for players.

Mega Moolah – The Millionaire Maker

This famous game from the world-renowned software developer, Microgaming, has paid out millions of pounds throughout its history. In fact, it became a Guinness World Record holder in 2015 when a player won €17,879,645.12, then broke its own record in 2018 with a €18,915,872.81 prize paid out.

The African safari theme features bright and colorful cartoon-style animal symbols, reminiscent of The Lion King. There are four progressive jackpots available, which can be won in a spin-the-wheel bonus round.

The largest of the four prizes, the Mega progressive, is always guaranteed to be a minimum of 1 million. Of course, the life-changing progressive jackpot is the biggest draw of the game, but there are plenty of other rewarding features. These include double payouts with wild wins plus free spins, where all wins are tripled.

This millionaire-making slot machine can be played at most casinos that host Microgaming software. My recommendation is Betway, where Mega Moolah can be found alongside more than 770 other great slots.

Mega Fortune – The Glitzy Slot with a Huge Progressive Jackpot

The theme of this spectacular NetEnt title screams wealth and glamour. Mega Fortune is dripping with bling, yachts, stretch limos, jewellery and champagne – and the theme perfectly matches the legacy of the slot.

It has held the world record for the largest online slot payout twice. The biggest prizes can be won during the bonus round, where there are three jackpots and various cash prizes up for grabs.

When you line up three bonus symbols, you enter the jackpot game where you can spin the three-stage wheel of fortune. Each spin gets you one step closer to the inner wheels and the bigger prizes. Make it all the way to the centre and you’ll walk away with the impressive Mega Jackpot.

This progressive jackpot builds and builds until it is won, usually worth in excess of 1 million. You can play this captivating game at Mr Green.

Reel Rush – Modern Classic

This is one of the more innovative titles you’ll find online. When you launch it, you’ll see that some on the spaces at the corners of the reels are inactive. Every time you get a win, a re-spin is triggered, and two of the inactive spaces are opened up, increasing the number of ways to win.

Each consecutive win triggers another re-spin, with even more ways to win. When you get another win after five consecutive re-spins, eight free spins are awarded and all of the hidden spaces on the reels become active. This opens up a massive 3,125 ways to win. Now, as you can imagine, this is where you will see the biggest payouts.

In fact, you can pocket up to 480,000x your bet. This innovative and unconventional gameplay builds up the excitement and anticipation with every single spin. It features superb graphics and mixes the style of classic console games with modern arcade style games.

There’s also a funky soundtrack, again adding to the fun factor. You can try out this unusual slot, both for free and for real money at 888casino.

Starburst – Consistent Choice

This video slot from NetEnt became an instant hit with players. It is visually stunning, with bright, vibrant colours and sparkling jewels. The outstanding graphics and the exciting sound effects create an arcade atmosphere that is engaging and captivating.

It is fast-paced, with fun and innovative features. Take for example the Starburst Wilds. These replace the usual wild symbols and expand to cover the entire reel. Plus, these expanding wilds stay in place for up to three re-spins, providing the possibility of astronomical wins.

Another unusual feature is the chance to win both ways. This breaks the mold of traditional video slots and again provides the chance to stack up plenty of payouts. Thanks to the huge popularity of this game, many of the best online casinos have included it in their game collections.

One of my favourite places to play Starburst is 888casino, where you will find it alongside hundreds of other top games.

Age of the Gods Jackpot Slots

This is not just one game, but a collection of exciting slots with two things in common: Greek mythology and a massive mystery progressive jackpot. There are nearly ten available, each based on different characters Ancient Greece. Highlights include King of Olympus, Furious Four, Goddess of Wisdom and Fate Sisters.

There are four jackpots to be won in each, which can be triggered randomly at any time. This means so you don’t even need a winning line in order to enter ant to be guaranteed one of the four jackpot prizes.

Age of the Gods Jackpots in Overview
  • Power Jackpot – Around £400 every 30 minutes
  • Extra Power Jackpot – About £4,000 every 2 hours
  • Super Power Jackpot – Up to £35,000 daily
  • Ultimate Power Jackpot – Over £800,000

As you can see, the Power Jackpot is the smallest. The biggest payout is the Ultimate Power Jackpot, which is often worth millions. Along with the draw of these huge jackpot prizes, the games are packed full of interesting features and boast stunning graphics and sound, making for a very enjoyable playing experience.

These enticing slots can be found at all Playtech operators, and there’s now also a spin-off roulette game that features the same progressive jackpot pool. My top recommendation for giving these reels a spin is Ladbrokes.

Gonzo’s Quest – With the Innovative Avalanche Feature

NetEnt is famed for its innovative approach to development, and one which captures this style perfectly is Gonzo’s Quest.

In it, the traditional spinning reels you find in most video slots are cast aside in favor of the Avalanche feature. This sees the Mayan symbols fall into place in the game. When a winning combination is lined up, the symbols explode and disappear, allowing others to drop into their place.

This unusual and creative setup creates the opportunity to get multiple line wins from just one “spin”. Also, with every subsequent win, the payout multiplier increases.

These exciting features are combined with cutting-edge graphics and 3D animations, that make gameplay enthralling and captivating. Gonzo’s quest is one of the most popular online slots of all time and has been a huge fan favorite since it first became available. You will find it at almost any NetEnt casino.

Gonzo's Quest slot game, with the innovative Avalanche feature

Game of Thrones – Based on the Much-Loved TV Show

This hugely popular TV series has been turned into an impressive online slot by leading developer Microgaming. There are two versions available, one with 15 paylines, the other with over 243 ways to win. You can play both versions at Betway or at Casumo.

The Game of Thrones slot is very true to the TV series, with symbols like the iron throne included, plus video clips and the iconic theme tune playing throughout. Yet it’s not simply the popular theme that has made it a success.

It is also packed full of rewarding and exciting features like the bonus round. Here, you take your pick from the four houses of Westeros, each with a different combination of free spins, stacked symbols and win multipliers.

Apart from this, there is a gamble trail feature, where you journey through four map locations with the chance to double your winnings at each step.

Game of Thrones Slot Machine by Microgaming

Fun Real Money Slots with Interesting Themes

These games are just some of the most popular online slots among online players, but it is by no means not an exhaustive list. All different titles have their own unique features that make them stand out in one way or another, so I’ve highlighted a few real money slots with fun and interesting design elements.

Immortal Romance – a Vampire Romance

Vampires have long been a topic of interest across all different kinds of media, branching from the scenes of books and movies into an online slot with leading developer Microgaming’s much-loved Immortal Romance game. The sultry characters spin on the five-reel, three-row grid that has 243 different paylines.

There’s also a stack of interesting features. For example, the game’s title card acts as a Wild that doubles any wins it creates, and three or more lion-faces scatters trigger a bonus round. During the so-called ‘Chamber of Spins’, free spins are awarded and wins are multiplied depending on which level of the bonus you are on. The more times you trigger the bonus in during the Chamber of Spins, the higher the benefits.

This is one of the most fun real money slots on the market, keeping things interesting and sexy all at the same time. You can try a free demo of it here.

The Immortal Romance slot from Microgaming
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Cleopatra – A Timeless Classic in Both Land-Based and Online Slot Casinos

IGT has created some of the most popular and iconic machines found in land-based casinos and also successfully adapted and developed for online play. By far the most famous and outstanding title in this collection is Cleopatra. This Egyptian-themed video slot has stood the test of time.

Despite the countless new titles that are released online every month with cutting-edge graphics and innovative features, this game has lost none of its appeal with players. It remains one of the best online slots, sought after by players on the internet thanks to the authentic theme and the expansive range of special features.

These include double payouts for wild wins, plus free spins with super-rich reels where winnings are multiplied by three. The game is so much in demand, that two sequels are also available, including a MegaJackpots version with a huge progressive jackpot. What’s not to like? You can play it at Grosvenor online casino.

An in-game still of the Cleopatra slot game from IGT

Gladiator – The Award-Winning Film Becomes a Video Slot

When this iconic Ridley Scott film was released in 2000, it was met with critical acclaim and won a whole host of awards, including an Academy Award for Best Film. The popularity of the film saw it developed by Playtech into an online video slot. The slot was released more than seven years ago but remains a firm favourite with players.

This is thanks to the superb graphics, intermingled with animations from the film. Additionally, there are plenty of features that make it entertaining and exciting to play. These include not one, but two different bonus rounds. In the Coliseum Bonus round, you take your pick from different squares, to reveal how many free spins you will get and with which multiplier, plus which symbols will become your extra wilds and scatters.

There is also a jackpot version of the game available, where the Gladiator Bonus round provides the chance to get your hands on a big progressive jackpot payout. This game is available at most Playtech casinos, but I would recommend playing it at Mansion Casino.

In-game screenshot of the Gladiator slot from Playtech

Advantages of Online Slot Sites Compared to Land-Based Casinos and Arcades

There is no doubt that playing online offers numerous advantages compared to playing in a bricks-and-mortar slots casino or an amusement arcade. Some of these benefits are obvious, while you probably haven’t considered some of them. The following section outlines the advantages of playing slots online.

Find A Favourite for Free

Though they always say, “don’t judge a book by its cover”, that’s really all you can do when playing in a land-based casino, which will require money paid first. The majority of online slots, however, can be trialed for free, so you can familiarise yourself with the features of a game before spending any real money. This is especially helpful considering the staggering amount of different titles that are available out there.

Non-Stop Slot Fun With Mobile Casino Apps

Not only are online games available for you to play 24/7, but they’re also ready to enjoy from basically anywhere thanks to mobile casino technology. Many operators have their own dedicated app that you can download to your phone or tablet.

However, increasingly popular is the development of optimised websites that are built using HTML5, which means you can simply open your favourite web browser on your phone and play instantly, without any need to download an app.

Best Slots Casino for Mobile Devices
Best slots casino for mobile devices

A smartphone and tablet device showing a selection of slot games

A QR code that leads to the LeoVegas casino AppStore Play Store
Big logo of Leovegas casino
287 Slot Games

Mobile slots casinos have wide selections of titles, with often hundreds of cutting-edge games with superb graphics and high payout rates. You’ll find an impressive selection of jackpots, including movie- and television-themed franchise slots or others with huge jackpot pools.

Whilst not all apps have a sky-high number of options, the best tend to offer unique and innovative real money slots from numerous software providers. There are often not as many options on apps or mobile-optimised sites.

This is because not all games are coded for small screens. The newer developers tend to be more mobile-focused. Either way, there are, of course, still huge arrays of games to play, and keep you entertained no matter where you are.

Real Money Slots Bonus Offers

Welcome offers are one of the most interesting ways that an online casino can try to stand out from the clamor that is the online casino industry. The details of an operator’s welcome bonus can take shape in a lot of different forms.

You will find deals out there with free spins on popular games or extra cash in your account. Some of the best slot site bonuses are highlighted in the table.

Things to consider before accepting a bonus
  • Wagering Conditions: How many times must you wager the amount before it will be credited to your account?
  • Claim Deadline: How much time do you have to meet the wagering requirements? This can vary from 24 hours to 90+ days.
  • Wagering Contributions: How much do the bets on different gameplay styles count towards the playthrough requirement?
  • Restrictions: Are there any types of games or wagers that are excluded from playthrough requirements?
  • Betting Limits: Does the operator set any minimum or maximum limits for bets that contribute to the wagering requirements?
Slots Casinos with the Best Bonus Offers
Up to £50* Full T&Cs apply. New customers only. Opt-in required. 100% Match Bonus up to £50 on 1st deposit of £10+. 50x bonus wagering applies as do weighting requirements. Debit Card & PayPal deposits only. This offer is valid for 7 days from your new account being registered.  Irregular gameplay may invalidate your bonus.
Up to £600* Full T&Cs apply. Minimum deposit: £20. 20 spins in Book of Dead on reg. 100% bonus up to £100 and 100 bonus spins. First 50 bonus spins credited on deposit, Second 50 bonus spins credited the following day. Valid on first deposit only. Wagering on reload bonus: 60x. Wagering on bonus spins: 30x. Wagering must be completed within 30 days. Max bonus bet £5. Bonus is valid for a total of 21 days. Game weighting and standard bonus terms apply.

The most crucial thing to investigate when looking into any promotion is its terms and conditions, the main points of which are highlighted above. As a slot player, you’ll be pleased to know that many of the best bonuses are aimed at slot players. However, it’s always important to read the small print.

Most casino promotions will count wagers on real money slot machines on a one-to-one basis, and giving away free spins is becoming more and more commonplace. Always remember that an online slots bonus is only an offer and one that you can decline if you do not want to deal with the hassle of wagering conditions.

If any of the above promotions sound tempting, click through to claim your chosen promo. You can also find out about the best welcome casino bonuses around the world here.

How to Pay for Your Real Money Slots

Although you can certainly try a lot of different online slots for free, much of the reason we’re drawn to the magic of these games is the potential for a payday. But you have to be in it to win it – meaning you have to put money in the machine for the chance for any to come back out.

To do so, you will need to visit the cashier of your chosen operator and choose from one of its many different deposit methods. It is almost unheard of to find a casino that won’t let you add fund via a credit card, for example, and there will always be at least one type of eWallet like Skrill or Neteller available, too. Also common is the pre-paid, gift card style payment systems such as paysafecard.

Best Slots Casino with PayPal Deposit with the eWallet and start spinning
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Full T&Cs apply. New players only • No Deposit Offer: Claim in 48 hrs • 14 day expiry • FP wins are credited as bonus and capped at €10, exc. JP win • 50x wagering • Deposit Bonus Offer: €20 min deposit • Valid for selected games • Bonus wins capped at €500 • 30x wagering – req. vary by game • Bonus expires within 90 days • Withdrawal terms, No Deposit Offer terms & Deposit Bonus Offer terms apply.

Another popular alternative for making deposits and withdrawals at online slots sites is through the payment service, PayPal. The main appeal of the system is that once you have created an account, you can quickly, easily and securely make payments to countless websites.

With eWallets like PayPal, you just need to login to the service through the operator, and instantly transfer funds to the casino – this makes PayPal slots extremely popular among players. A rarer option, but still an option nonetheless, is making transactions using bitcoin and other types of cryptocurrency.

How to Tell if Slots are Fairly Programmed

As explained earlier, all games have a return to player (RTP) percentage that dictates how it will pay out winnings over time. It is important to know that a site is fair. But how can we make sure that these numbers are more than just a figure plucked out of thin air?

Well, as part of the licensing requirements from most regulatory bodies, all titles must ensure their RTP figures are tested and approved by independent bodies. This must happen on a regular basis, too.

Many online slots sites will promote this fact by placing the logo for its testing company in the footer of its website, which is why the eCOGRA, GLI and iTechLabs logos may look familiar to you.

How to Confirm if a Slots Casino has Fair Games
  • The eCOGRA, NMi, iTechLabs, bnntestlabs, GLI and TST logos.1/3 Authority LogosYou will often be able to find the logo of an independently operating testing authority at the bottom of a casino’s website in the footer. Some of the most common companies are shown in this image. Look out for their logos!
  • The footer of the 888casino website showing the testing authority eCOGRA logo.2/3 ClickIf the authority’s logo is visible in the casino’s footer, it will usually be clickable. This will take you to either the most recent report from the authority, or the authority’s website. Not all companies publish their reports for the public to see.
  • The Accreditation certificate that testing agency eCOGRA awarded to 888casino3/3 View Report You can now view the accreditation awarded to the operator in question by the nominated testing agency. This means the games are all certified to be safe and fair. You are free to play!

This is probably one of the biggest advantages of playing slots online. The theoretical payout percentage is usually between 90% and 95%. As for the return to player percentage in brick and mortar casinos, it falls far short in comparison.

The reason for this is that online casinos have significantly smaller running costs. In turn, online slot sites are able to pass these savings on to their customers by way of greater payouts. Therefore, if you choose to play online, you are far more likely to see greater payouts than when playing elsewhere.

More Jackpot Games with Bigger Prizes

Online, you’ll find a wide variety of games with progressive jackpots. Each player who chooses to play a jackpot game contributes a portion of the wagers towards a pooled prize fund. Owing to the massive numbers of people that play online slots, these progressive jackpots can quickly build to staggering amounts.

Much Larger Game Selection

Due to the space restrictions, there is a limited number of slot machines available in a land-based casino. When gambling online, this restriction is removed entirely as there are no space limitations, meaning online sites can provide hundreds of titles. Additionally, online versions allow easy access to game rules and payout tables.

All Games Are Available at All Times

Land-based casinos and amusement arcades do no open 24/7. Plus, there may be restrictions to opening times on some public holidays as well. This issue is eliminated when playing online. Online casino games can be played anytime, day or night, each and every day of the year.

Plus, unlimited numbers of players can play the same product at the same time online, so there is no need to fight over the top online slots.

Other Game Styles You’ll Find Alongside Slots

Just like millions of other gamblers, you’re looking predominantly to play slots online. However, the best online slots casinos will also feature other popular styles of games, such as card games blackjack and poker as well as roulette.

Disadvantages of Playing Slots Online

Although I am clearly a convert to the online gambling scene, it would not be a balanced article for you without me also sharing any downsides to playing slots online, as opposed to in a land-based casino. One of the most common complaints centers on the lack of atmosphere when playing at home.

For many, heading to the casino is a social affair, where one gets to spend time with friends, play some games, and have a few drinks or a steak dinner. In this case, the night out is just that, more about having a night out. It’s dressing up in your best fancy outfit and enjoying the ambiance and company at a gambling house.

Due to the accessibility of playing slots online, some people find that gambling online can have an addictive nature. This is a real problem and has prompted the inception of many a responsible gambling firm such as Gamble Aware and GamStop. Many operators have also created their own responsible gambling processes.

Slots Glossary – Common Terminology

Slots Glossary
    • Bonus Feature SlotsA special kind of slot that offers a bonus round in which it’s possible to win free spins, jackpots, and other special wins.
    • Bonus Multiplier SlotsOn this kind of slot machine you will be awarded a bonus for playing the maximum number of coins per spin. For example: If you bet 1 coin per spin, a combination pays out 4 coins, had you played 2 coins per spin that combination would pay 8 coins, but had you played 3 coins per spin you would have won 20 coins. As you can see there is a bonus of 8 coins awarded for playing the max. coins per spin. (20-12=8).
    • Coin Size Some slot machines will let you choose the size of the coins you play with. For example: A machine takes 3 coins per spin but you can choose the coin size to be either $0.25, $1 or $5.
    • Diamond Slots The Diamond Slot is a very popular Las Vegas slot machine on which some of the reel symbols are diamonds.
    • Fruit Machine A classic slot machine where the symbols are different kinds of fruit – like cherries, melons, peaches and bananas.
    • Loose SlotsA slot machine that is ready to pay out a big win. Not actually a truthful term, just a superstition.
    • Multiplier SlotThese kind of slots are recognized as a machines that DO NOT offer the player a bonus for playing the max. number of coins per spin. For example: If you bet 1 coin per spin a combination pays out 4 coins, Had you played 2 coins per spin that combination would pay 8 coins. Had you played 3 coins per spin you would have won 12 coins. As you can see there is no bonus awarded for playing the max. number of coins per spin. These kind of slots are not bad at all, and you should actually look for this kind of slot if you don’t like to bet more then one coin per spin. Also see the slot term: Bonus Multiplier Slots.
    • One Armed BanditAnother word for a slot machine. The name refers to the fact that slot machines used to have a handle that the player had to pull to get the reels spinning.
    • Pay CycleA popular rumour is that a slot machine goes through ‘cycles’ – where it will sometimes pay out winnings to players, and other times play to take in profit to the casino. Personally, I think this is just a rumour – as today’s random number generators simply don’t work like that. Perhaps such cycles did appear in the past – but not with today’s slot machines.
    • Pay Table A table of symbols that shows the winning combinations of symbols for that particular slot machine. Normally the pay table is located on the front of the slot machine.
    • Payline This used to be the middle line on the slotmachine display – but that is not always the case today. Nowadays, some slots have up to 9 paylines – the more coins you play per spin the more paylines are normally activated. Symbols have to line up on the paylines for the player to win prizes according to the pay table.
    • Payout PercentageThis is the amount of $$$$ a slotmachine pays out in winnings; on average, for every $100 that has been wagered on the machine. For example: A slot machine has been set to pay out 95% in winnings in the long run. So every time $100 has been wagered, the machine will pay out $95 to the players. Remember that this is in average seen over the entire life time of the machine, it doesn’t mean if you put $100 in such a machine and wager $100 you will end up having $95 left. Over the short-term you could win a big jackpot, but you could just as soon have a bad run and lose most of it.
    • Progressive Jackpot A slot machine with a jackpot that grows until a lucky gambler wins the big prize. The jackpot is then reset and starts growing again until the next very lucky player comes by and wins.
    • ReelsThe vertical display wheels that shows the symbols.
    • RTP Return to player rate. The statistically-likely monetary return percentage of a game over an extended period of play. See also: Payout Percentage.
    • Sim SlotsShort for simulating slot machine or video slot.
    • Take CycleThe opposite of a ‘Pay cycle’. A popular rumour is that a slot machine goes through ‘cycles’ – where it will sometimes pay out winnings to players, and other times play to take in profit to the casino. Personally, I think this is just a rumour – as today’s random number generators simply don’t work like that. Perhaps such cycles did appear in the past – but not with today’s slot machines.
    • Tight SlotsA slot machine that is NOT about to pay out a big win.
    • Video SlotsSimilar to a slot machine but the mechanical reels have been replaced by a video screen.
    • Wheel of Fortune SlotsThe ‘Wheel of Fortune Slot Machine’ is a very popular slot machine in Las Vegas Casinos, offering a huge Jackpot.
    • Wild SymbolA symbol that can substitute for other symbols – it’s very similar to a wild card in a card game – you can use it to complete a winning combination.

Conclusion: Start Playing Slots Online

As you’ll no doubt have gleaned from this article, there is a lot of fun and cash money out there waiting in the form of online casinos. There are a lot of different operators you can select from, all of which have a bonus for you to snatch up, huge game libraries and a veritable avalanche of real money slots.

I have carefully considered all of the leading options to offer the list of best online slots casinos, which makes it very simple for you to get right into the thick of it and have some fun! If you want to find out about other aspects of sites, why not start with our guide to the best casino sites?

There are thousands of different online slots for international players ready and waiting. Take one for a spin!

Simon Rosewww.online-casinos.com

If you’ve had a look at the top six sites but aren’t convinced, I recommend you have a look at my top 10 for more inspiration. But in any case, as long as you can identify a safe and fair operator, you will be in good hands. The most important thing to remember is have fun while playing, since that is what slots are really about after all.

Frequently Asked Questions about Slot Games

Did I gloss over a topic too quickly? Is there something more you need to know about the online slot sites? Feel free to send me a quick email to contact@online-casinos.com and I’ll respond as soon as possible in the following frequently asked questions section.

Can you win real money in online slot casinos?

Yes, of course, there is real money to be won from slots in online casinos. It is a matter of luck, as the games are all programmed with a random number generator that decides which spins win or lose, but the possibility is always there – as long as you are also wagering with real money funds.

How do you register to play slots at online casinos?

It is very easy to start playing slots at your chosen slots site. All you need to sign up is a few details: your name, date of birth, proof of address and identification and an email address. Most casinos streamline their registration processes so that they can be completed in less than five minutes, which is great if you are very impatient like me. Once you have completed the process, you can start to play immediately but you will have to choose a payment method and make a deposit (don't forget to claim a bonus offer) before you can start playing slots for real money.

What is the best online casino to play slots?

Great question. There are lots of different online casinos where you can play slots, each different from one another, so it is very difficult to pick out the best online slot casino. My list of top operators will, however, give you a selection of the best gambling experiences available for this type of game.

Are online slots legal?

Absolutely. As long as you are playing at a fully-licensed online casino, there are zero issues to think about in terms of legality of slots. You must also follow the casino's own laws, though: You must be over 18 to legally play at one of our trusted online casinos.

How to win online slots?

As we said above, there is no way to guarantee a win in slots. The games are automated and there is no perfect strategy to ensure that you make profits. We do, however, have a page of slots tips and tricks to help you play smartly.

How do online slots work?

Online slots use random number generation in order to completely randomise the spin and results. The companies behind them are some of the most creative tech companies out there. Check out the best online slots to find the right game for you.