Whether they're one-armed bandits or modern button machines, slot games are played worldwide – from the fruit machines of Great Britain, to the pokies of Australia and New Zealand, to the slots of the United States of America. In line with advances in video games and networking, slot machines shed their clunky mechanical workings to make way for intricate software and dazzling graphics.
The move to online slot machines afforded the top game developers a whole host of opportunities that were free from the restraints of a physical game. No longer were developers limited to 2D graphics, bells, 3-reels, and 1 payline, instead embracing 3D and HD quality animations, exceptional theme music and seemingly endless reels and paylines.
Players can now enjoy a wealth of cutting edge titles right next all the classics when visiting the top online casinos. It's just up to them to choose their favourite. Below our extensive list of slot game reviews you'll find some frequently asked questions regarding online slot features including slot types, paylines and reels, betting amounts and payouts, bonuses and symbols, and even progressive slots.
Recommended Slot Games
Betsoft Gaming’s 4 Seasons is a 5-reel, 30-payline slot game based around Ancient Chinese mythology, specifically the Zodiac. Touting stellar graphics and captivating imagery, 4 ... Read More This sexy and flirtatious 5-reel slot game offers players all the fun of a big night out, without that one drunk and embarrassing friend. Created ... Read More Alice's Adventures in Wonderland, Lewis Carroll's famed novel, has inspired many adaptations across multiple medias, but few can be as profitable as the Adventures in ... Read More Featuring five reels, 20 paylines, powerful gods, multiple bonus features and a progressive jackpot, Age of the Gods delivers a slick video slot experience with ... Read More If you're a fan of epic adventures with equally epic jackpots, Playtech's Age of the Gods: Fate Sisters is the slot for you. Packed with ... Read More Part of Playtech's popular Age of the Gods series, Age of the Gods: Furious 4 brings four of the collection's best characters together for an ... Read More If mythology and legend are your thing then Playtech’s Age of the Gods: God of Storms online slot is likely to blow you away. This ... Read More The Age of the Gods: Goddess of Wisdom online slot is the latest in the Age of the Gods series developed by Playtech. The five-reel, ... Read More The Age of the Gods: King of Olympus online slot was the first title in Playtech’s progressive jackpot series of games based around the myths ... Read More The Prince of Olympus online slot is another instalment in Playtech’s ever-expanding Age of the Gods series. With five reels and 25 paylines, it follows ... Read More Thunderkick's Arcader slot game utilises all the provider's resources to whisk each player into a world where 80's arcade games meets extraterrestrial monoliths handing out ... Read More NetEnt’s new video slot puts science into the spin with five reels revolving around the theme of magnetic attraction. In a secret underground lab, players ... Read More Microgaming's Bar Bar Black Sheep is truly “bar-illiant” as they so creatively put it in their press release. Thanks to a bevy of features and ... Read More Hitting the internet late November 2016, Batman and Catwoman Cash is yet another fantastic slot within Playtech's impressive the DC Comics series.... Read More Batman and Mr. Freeze Fortune is part of Playtech’s series of online slot games based on the Caped Crusader. With 1,024 ways to win and ... Read More Batman and The Batgirl Bonanza, one of several games linked to the DC Super Heroes jackpot network, sees the caped crusader and boy wonder Robin ... Read More Head back to the kitsch, classic and more comedic realisation of Adam West's Batman with the Batman and The Joker Jewels online slot machine.... Read More Part of Playtech's Batman progressive slots series, the Batman and the Penguin Prize slot and its 4,096 ways to win are to serve justice!... Read More Batman and the Riddler Riches slot game is another Playtech classic, part of the brand's immensely popular DC Comics series.... Read More Enter Playtech’s epic Battle of the Gods slot and see if you’ll find favour with the Olympians or incur their mighty wrath. Inspired by the ... Read More Thanks to the minds behind Microgaming, Battlestar Galactica fans can not only travel to the Twelve Colonies to defend the human race from the Cylons ... Read More It will come as no surprise to learn that Beach Life is a slot machine based around the beach. However, you may be interested to ... Read More Based on the classic fairy tale carrying the same, this five-reel, 20 payline slot from Yggdrasil comes with all the polish and features the developer ... Read More This one's for the lovers of cult horror and vampires. Filled with scary sounds, 3D graphics and two vampish bonuses, Blood Suckers will give you ... Read More It seems that no one ever told the bearded 'Boom Brothers' that it’s not safe to play with explosives. In this exciting slot game, though, ... Read More Once Simon Cowell was done terrorizing perspective American singers, the outspoken talent show host moved back to his native land and expanded his criticism to ... Read More Chivalry’s not dead over at Rabcat Gambling, where the software developer has produced Castle Builder, a slot game affording players the ability to construct mighty ... Read More The success of 2015 release Chibeasties from Yggdrasil software led to demand for more. Chibeasties 2 features several upgrades, including four special feature wild realms, ... Read More Set in a magical forest, Yggdrasil's Chibeasties is an upper range volatility video slot with a powerful free spin feature, five reels and 20 paylines, ... Read More The traveling circus was king of entertainment in its hey-day. Well thanks to Playtech and their Captain Cannon's Circus of Cash slot game, players can ... Read More Talented spinners and cricket-lovers alike take note: Microgaming has developed a fantastic cricket-themed slot and it's at an online casino near you. Based on the ... Read More Playtech has discontinued all Marvel-based online slots including this slot game, meaning it is no longer available to play with any online casinos.... Read More The reality show Deal Or No Deal has become a global phenomenon with variants of the show in what seems like every country. The companion ... Read More The Desert Treasure slot game brings all the fun of uncovering ancient relics and mounds of gold while providing an opportunity to take home an ... Read More Playtech has discontinued all Marvel-based online slots including this slot game, meaning it is no longer available to play with any online casinos.... Read More Everybody's Jackpot is unique in the world of progressive jackpot slots, in that it rewards everyone in the game when the big prize is won. ... Read More Playtech has discontinued all Marvel-based online slots including this slot game, meaning it is no longer available to play with any online casinos.... Read More Based on the timeless Arthurian Legend, this 5-reel, 20-payline slot title from Rabcat captures the dark medieval tone of the times using high-quality graphics and ... Read More The leader in 3D slot technology, Betsoft Gaming, have rolled out another stellar 3D slot title with their 2016 release of Frankenslot's Monster. This goulish ... Read More Racing fans rejoice – Playtech have created a slot game dedicated to celebrating legendary jockey Frankie Dettori and his famous "Magic Seven" achievement. With a ... Read More It's rare that the stakes are higher than in Game of Thrones, an epic game that brings the powerful houses of the Seven Kingdoms, ruthlessly ... Read More Quickspin has done it again, this time with their 2016 release of Genie's Touch. The Swedish software supplier has rolled out all the stops for ... Read More Microgaming broke the mold when they created the Gladiator Slot. Also revealed in a Playtech version, this slot has no less than 50 paylines and ... Read More Fancy a gold rush reminiscent of California back in 1848? Well now you can, but you won't need a pick axe or wheel barrow because ... Read More Dive into Yggdrasil Gaming's underwater slot adventure, Golden Fish Tank. A 5-reel, 20-payline 3D slot game offering up to 10,000 coins on a single spin, ... Read More Hit the back of the net with the fast-paced Golden Goals slot game. Its old-school graphics and fun-filled football theme will keep you entertained as ... Read More Roll up, roll up – the circus has come to town! This unusual video slot from Play'n Go stands out from the crowd thanks to ... Read More If you go down to the woods today, you'll want to skip the scenery and jump straight into this video slot game inspired by the ... Read More Gonzo’s Quest lets players follow in the footsteps of Gonzalo Pizarro, the 16th century Spanish conquistador who set out to discover El Dorado, the mythical ... Read More NetEnt's Guns N' Roses slot is a stellar tribute to the iconic group's highly anticipated 30th anniversary. For the everyday slot player with no musical ... Read More One of the most popular slots online at the moment, Hall of Gods takes its inspiration from classic Norse mythology. Developed by Swedish gaming giant ... Read More Hitman is the fantastic slot from Microgaming that’s all killer and no filler. The online video slot brings the lead character – the mysterious Agent ... Read More The first in a mythical saga of games from industry leaders Microgaming, this slot combines the excitement of video slots with a story of dark ... Read More Playtech has discontinued all Marvel-based online slots including this slot game, meaning it is no longer available to play with any online casinos.... Read More Playtech has discontinued all Marvel-based online slots including this slot game, meaning it is no longer available to play with any online casinos.... Read More With a name like Jackpot Giant, this online slot from Playtech has a lot to live up to – but it does so, thanks to ... Read More NetEnt has added another massive name to their 'NetEnt Rocks' 2016 slot series with the released of the Jimi Hendrix slot game.... Read More This five-reel, ten payline slot from Yggdrasil is for the old school. With plenty of interesting features and bonuses, the Jokerizer slot is just as ... Read More Judge Dredd might exist to prevent the robbers of Mega-City One from getting away with a big haul, but in this sci-fi slot from NextGen ... Read More This 5-reel, 25-payline Microgaming title takes slot-lovers on an adventure they won't forget. Join Jungle Jim as he searches for the lost city of gold!... Read More Be a cool cat with everyone's favourite fluffy friend slot: Kitty Glitter. Dogs may be man's best friends, but these cute kitties are the purr-fect ... Read More It's rare enough to find a video slot with a range of entertaining mini-games, but to find one that also crams in bags of laughs ... Read More Little Red Riding Hood is quaintly harks back to old-school slot games with a unique fairy tale aesthetic. Ignoring the brooding adult misery of Hollywood’s ... Read More Explore the mystical beauty of a lost island with this mysterious slot game from NetEnt. The inviting Lost Island is littered with the ancient relics ... Read More It’s fair to say that Major Millions is one of those slots that, just like warfare, seems to have been around forever. As revered as ... Read More Another hit from the successful DC Comics superhero series. Step into Superman’s boots in the Man of Steel slot game and battle his arch nemesis ... Read More Max Damage has returned to save the world from alien invasion one more time, this time in Microgaming's latest slot; which promises profits that are ... Read More iSoftBet's dedication to continuing on the original slot concept tradition of its predecessors resulted in this modern release of a slot game sure to bring ... Read More Not just a game for lovers of glitz and glamour, Mega Fortune boasts all the playability you’d expect from a top NetEnt video slot. With ... Read More Progressive slots have long grabbed the attention of most slot enthusiasts but some of those progressives have even pushed ahead of the others, establishing themselves ... Read More Few progressive jackpot slots can match the sheer scale of this magical top slot: Millionaire Genie. And this one is even entertaining for casual players ... Read More Millionaires Club III invokes thoughts of taking home a life-changing jackpot, the exact thought the developers over at Cryptologic were hoping to invoke when they ... Read More Guts has welcomed Miss Midas, the latest illustrious guest, to its slick casino. Better still, she's arriving in an excellent new slot with some shiny ... Read More Gags and giveaways abound in this anarchic slot, Monty Python's Spamalot, which cheekily (although rather accurately) bills itself as 'not an ordinary jackpot game'.... Read More The latest installment in the 'NetEnt Rocks' series is the Motörhead slot game. Following the likes of the great Jimi Hendrix and fellow rock band ... Read More Come be the biggest loser and the richest winner all at once with Mr. Cashback online slot game. Powered by Playtech, the cigar smoking Mr. ... Read More Get ready to dive into the great unknown as you seek the ocean's treasures with Nauticus. This nautical-themed slot comes straight from Quickfire, offering players ... Read More The NextGen slot Pandamania is perhaps the most gleefully silly and joyously fun slot released over the last few years, but NextGen can assure you ... Read More Get a taste of the high life with Pimped: a video slot that takes you right into the heart of the gangsta world, complete with ... Read More We all know the tune, but what do you know about the slot game? Pink Panther is one our favourite slot games to hit online ... Read More Pinocchio, the little wooden puppet boy with a penchant for porkies, is brought vividly to life in this excellent new video slot by Quickfire. And ... Read More Based on the movies 'Rise of the Planet of the Apes' and its sequel 'Dawn of the Planet of the Apes', this 5-reel and 20-payline ... Read More There’s a huge pot of gold waiting to be won thanks to Plenty O’Fortune, a 5-reel, 20-payline slot game developed by Playtech which offers a ... Read More Tipped as one of the top slot releases of 2017, the Power Plant video slot from Yggdrasil lets you take control of your very own ... Read More Playtech has discontinued all Marvel-based online slots including this slot game, meaning it is no longer available to play with any online casinos.... Read More The Rainbow Riches slot is one of the most well-known and successful titles in the world of online slot machines. It's been around for a ... Read More There is nothing we love more than a good merging of souls, and nothing does it quite like Reel Play Jacks. Also known as Reel ... Read More This heavyweight slot from Playtech packs a punch when it comes to bonus features, from the chance to claim huge prizes in the ring to ... Read More SafeCracker has the most simple, yet elegantly designed, console you're ever likely to see. The three reels with their single paylines are depicted as a ... Read More With an interface that alters like the seasons, Yggdrasil’s Seasons online slot will have you captivated from start to finish thanks to its five reels ... Read More NetEnt has never shied away from branding, partnering with a wealth of established brands to headline their stellar collection of slot games. Well NetEnt is ... Read More With its galactic graphics and futuristic soundtrack, the Starburst video slot is a simple yet entertaining addition to all NetEnt casinos' collection of games. The ... Read More At first glance, the Superman II online slot looks completely unremarkable, but then so too does Clark Kent in his journalistic guise. A static set ... Read More As you may have already concluded, this slot title from Playtech is based upon the Superman movie franchise, but this time it’s not the shiny ... Read More Playtech has discontinued all Marvel-based online slots including this slot game, meaning it is no longer available to play with any online casinos.... Read More Playtech has discontinued all Marvel-based online slots including this slot game, meaning it is no longer available to play with any online casinos.... Read More This five-reel, three-row game is dark in name and dark in nature, with horror-themed graphics and a spooky soundtrack; also, this slot has nothing to ... Read More Playtech has discontinued all Marvel-based online slots including this slot game, meaning it is no longer available to play with any online casinos.... Read More Taking its style cues from the 1933 movie of the same name, including creepy film score-style background music, The Invisible Man slot continues NetEnt’s epic ... Read More This latest mathematical, mind-bending slot from NextGen, The Lab, is prepped to help a generation of online slot players learn about gambling strategy. In the ... Read More Alexander Dumas’ classic novel about The Three Musketeers, those infamous guards of the French court, has spouted numerous films and TV shows. Playtech have looked ... Read More Thunderstruck II is a sequel to the very popular slot game, Thunderstruck. What strikes immediately is the quality of the graphics, animation, and sound ... Read More Tiki Wonders remains a top drawer progressive jackpot slot. The overall feel of the game is unspectacular, but still pleasant, functional and fun. The Hawaiian ... Read More Lace up your boots and shoot to score with the new Top Trumps World Football Stars 2014 slot. An updated version of the original Football ... Read More The classic Vegas slot is given a masterful makeover in Twin Spin, combining style and simplicity in one of the most fun and easy-to-use games ... Read More If you thought Vikings Go Wild was good, wait till you see them going Berzerk! The sequel to the hugely successful Yggdrasil title is filled ... Read More Vikings Go Wild is the original slot game from Yggdrasil that would go on to spawn a monster line of fan-favourite slot titles. Join a ... Read More Spin your way back to a time when warlords reigned with an iron fist and survival was reserved for the strong. From unique free-spin rounds ... Read More Wicked Circus is the third and newest title in Yggdrasil Gaming’s distinctive Jokerizer series of games and certainly offers a couple of little twists on ... Read More The London Olympics might be a distant memory, but this Games-inspired slot still carries the flame. Wild Games delivers a slot experience that's packed with ... Read More Everyone was taught about the dangers of playing with fireworks, but in the case of this explosive NetEnt video slot, a little boldness can lead ... Read More Surf’s up! Grab your board and hit the beach with the Wild Water slot game. This hip video slot comes straight from NetEnt, complete with ... Read More Be prepared to have your world turned upside down as you travel the yellow brick road with the tin man, the cowardly lion and the ... Read More Playtech has discontinued all Marvel-based online slots including this slot game, meaning it is no longer available to play with any online casinos.... Read More Playtech has discontinued all Marvel-based online slots including this slot game, meaning it is no longer available to play with any online casinos.... Read More Playtech has discontinued all Marvel-based online slots including this slot game, meaning it is no longer available to play with any online casinos.... Read More
What Should You Know About Online Slot Games?
Online slot games are by far the most popular type of online casino games in the world. Regardless of where a player might be betting from, most top online casinos around the world offer significantly more slot game titles when compared to all other game types. Some of the world's most popular online casinos even offer hundreds of slot game titles.
With such high demand (as well as supply from the game providers), online slot games tend to be the focal point of most punters' inquiries into online casino games. In hopes of answering some of those questions, as well as any others players might not of even known they had, here's some of the most frequently asked questions regarding online slot games.
What are the Most Common Types of Online Slots?
Slot games in general have come a long way from the early days fruit machines, with the move from real-life slots to online slots providing ample opportunity to continue that growth. Now players can enjoy a wealth of online slot types: video slots, 3D slots, progressive slots, 243-payline slots, and even slots designed to mirror popular video games.
Online video slots allow for a diverse range of gameplay, from games that imitate classic slots, to more hi-tech video slots. Players can also enjoy titles using 3D graphics as well as progressive slots, where the jackpot is tied to all those playing the same game. Whereas classic slots often utilise recognisable symbols from fruit machines, video slots often create their own symbols and icons based on the brand or theme that they're set to.
Most online slot games follow the popular 25-playline structure with some varying north or south of that a bit but mostly staying close to that range. But thanks to digital slot games, players can also enjoy up to 243 ways to win, a option not afforded prior to the launch of online slot games. The most recent type of slot game hitting the market is those mirroring popular video game formats but these unique formats aren't wide spread just yet.
A number of video slot developers licence characters from existing films, TV shows, and comic books, like the range of slots based on the characters that inhabit the Marvel Cinematic Universe all brought to you by Playtech. Following Marvel's purchase by Disney, Playtech turned to DC Comics to team up on a line of slot titles from their epic collection of characters as well. NetEnt slot games are also extremely popular.
What are Slot Reels?
The virtual "reels" of online slot games are used to represent the software program that randomly generates the symbol combos of each spin. The symbols of online slots are not subjected to the order they appear in like with old reels but instead can appear in any random order the software commutes. Although the word "reel" is used for online slots, it actually represents a vital part of real-life slot machines.
The term "reel" originates from real-life slot machines that used painted symbols on (typically 3) round metal drums to represent the winning combos. Working like a gear, the reels would spin until they naturally came to a stop with a combo of symbols on display. The advent of online slot games eliminated the need for actual reels but the word stuck around.
What are Paylines?
"Paylines", unlike "reels", do not originate from the days of real-life slot machines. Original slot machines used the center row as the winning line so no need to refer to it or multiples of it. "Paylines" was coined to describe the different ways an online slot player can win on a spin. Online slot games offer not only more than one way to win but up to 243 ways to win depending on the number of reels and title you're playing.
How Many Reels and Paylines Do Online Slots Have?
The standard classic slot machines had 3 reels, with one payline across the centre. Online video slots offered game designers the chance to expand on both of these. 5-reel games have become the standard for many online casinos, while a game can offer anywhere between one to 243 paylines, going forwards or backwards, as well as creating various diagonal shapes.
Can You Choose How Many Paylines to Bet?
Players can choose how many lines they wish to play and in which combinations they want, as well as deciding how much money to place on each line. A slot offering 25 paylines does not mean you have to place your bet on all 25, instead you can select how many, say 10, and which of the paylines, say 1-5 and 20-15, you'd prefer to place your bet on.
How Much Can You Bet On an Online Slot Game?
The amount that players can bet on an online video slot differs wildly, depending on what the games developer has set as the minimum and maximum, the casino that's hosting the game, and the currency that's being wagered. It will also depend on how much the player places on the line bet – not forgetting to multiply this by the number of lines activated.
For example, a player may choose a line bet of ten coins, playing 25 paylines, which equals 250 coins per spin. Depending on the number of symbols scored on a specific line, payouts can range from 10x to 2000x the initial bet. If a player is lucky enough to land two wins on the same payline, the vast majority of online video slots will only offer one payout per line, favouring the higher cash prize.
What are the Most Common Slot Game Bonus Features?
In addition to wins using only standard symbols, online video slots feature a wide array of bonus icons and rounds, which improve a player’s chance of success, while also adding some variety to gameplay. The most commonly used slot game bonus features include Scatters, Wilds and Multiplier bonuses.
What are Wild Symbols?
Wild symbols act as chameleons and can be substituted for other icons, which can help turn a losing line into a winning one. It's worth bearing in mind, though, that wild symbols are not usually able to replace a scatter symbol.
What are Scatter Symbols?
Scatter symbols are icons that do not necessarily have to appear on the payline in order to be activated. In most online video slots, the appearance of three, four or five scatter symbols spread out across the reels will generate a bonus payment, or even launch a bonus round or free spins round.
What are Mutlipliers?
Scatter bonus rounds can take various forms, but ultimately lead to a player trying to progress through several rounds in order to increase their score. This is often then multiplied by the initial bet to reward the player with a much higher cash prize.
Are Online Slot Games Safe?
Safety while playing online casino games can be top priority for some punters and with online slots being the most popular option, some worry about the overall safety of the games. Fortunately, online slots developed by the industry-leading game providers and offered at top online casinos are definitely safe to play for the average player so no need for any players to worry.
We Recommend Slot Games at these Casino Sites
Terms and Conditions apply for all bonuses. Must be 18+ to participate.
Every online gambler deserves a safe and fair place to play. Our mission at Gambling.com is to create a safe online environment for players through free, impartial and independent reviews of the UK's best online gambling companies so that you can play with confidence and security. All ratings and reviews are made independently of the operator by our team of gaming experts and with every company being fully UK licensed they can be trusted to offer fair play. We accept compensation from the companies advertised on this page and this may affect the brand positioning. We endeavour to continuously update this list so we can bring you the most current sites and the best available offers but we cannot review every site in the market.