Mobile Online Slots

Written by Dean McHugh
Dean McHugh
Dean McHugh is a full-time writer with more than 20 years of experience in the iGaming industry. Specialising in casino reviews, slot analyses, and sportsbook evaluations, he delivers clear, engaging, and insightful content for both industry professionals and casual players. Over the past four years, he has contributed extensively to leading iGaming comparison websites.
, | Updated: Fri 29 August 2025

When casino operators first went online, players were provided with the opportunity to enjoy their favourite casino games from the comfort of their homes via their desktop computers. However, the rapid advances in technology over the last two decades led to the emergence of mobile casinos that enable gambling enthusiasts to load and play the games on their smartphones and tablets. This further increases players’ convenience, as they are now able to access casino portfolios from any location, at any time.

Slots appear to be the type of game that both casino operators and players tend to favour. Because of this, the gaming collections of many mobile casinos consist mainly of a wide range of slot titles. Key software developers, the likes of NetEnt, Microgaming and Playtech, cater to popular demand and have adapted many of their well-known slot titles for mobile play so that slot fans can enjoy them as they go. Read on to learn more about how to play mobile slots and which are the most popular titles to try on the go.

Playing Slots via Mobile Devices

You would be surprised to know that mobile slots have similar features and are played roughly the same way as their desktop counterparts. If you have already opened an account at a given online casino, you will not be required to register again in order to access the mobile catalogue – you can simply log in using your existing credentials.

Players can adjust their coin values and the number of coins to bet per active payline with a few taps of their mobile device’s touchscreen. When you land a winning combination on the reels, you will be immediately credited with the amount you have won, not to mention you can manage your casino account and cash out your funds via your portable devices with ease.

Due to the higher resolution of mobile devices’ displays, the graphics and animations appear crisper and more vibrant. Since the slots have been customised for mobile play, they fit the smaller screens of smartphones perfectly. What is more, mobile slots are often available in both fun and real-money modes, which allows players first to test the titles they are interested in for free.

However, if you want to enjoy your favourite slots via your smartphone or tablet, you need to make sure the online casino you have registered at is compatible with mobile devices. Many renowned online casino operators provide players with the opportunity to download and install their native mobile applications free of charge. More often than not, downloadable applications for devices running on iOS and Android are offered.

The apps for iOS devices can be downloaded free directly from the App Store. However, Android users will not be able to find mobile casino applications on Google Play due to Google’s strict policies, which prohibit real-money gambling apps from being offered in the store. Nevertheless, players who intend to bet on slots via their Android devices will be able to download the apps directly from the website of their casino of choice. Some online casinos require registered players to scan a QR code in order to request the Android application. Others send the download links for the said app via email or even as a text message. On rare occasions, players can request a download link by contacting the casino’s support team via the live chat facility.

If you lack memory space and do not wish to install any apps on your portable device, you can always load the slots portfolio directly in the browser of your smartphone or tablet. The websites of all reputable casino operators in the industry are fully mobile-responsive and many have adopted HTML5 technology. The latter enables players to load the games in Instant Play mode via a wide range of devices, including those that are based on the Windows Phone OS.

Owning an older mobile device should not be a reason for concern. You will still be able to enjoy your favourite slots on the move as long as you have up-to-date Java software installed on the device. Needless to say, a stable wireless or 3G/4G connection is essential if you wish to enjoy a smooth and hassle-free gaming experience.

The gaming collections of mobile casinos continue to expand as more and more titles are added on a regular basis. If you are new to playing slots and mobile gaming in general, we suggest you take a look at the five mobile slots we have reviewed below, as they are among the most popular titles to be adapted for mobile play.

Jurassic Park

ProviderMicrogaming
TypeVideo slot
ThemeMovie
Bet Range£0.30 – £15
Number of ReelsFive
Number of Paylines243 ways to win
Wild SymbolT-Rex skeleton
Scatter SymbolMosquito
Bonus Features T-Rex Alert feature
Tyrannosaurus Rex Free Spins feature
Velociraptor Free Spins feature
Brachiosaurus Free Spins feature
Triceratops Free Spins feature
Dilophosaurus Free Spins feature
RTP96.67%
VolatilityMedium
Maximum Payout6,333x

This Steven Spielberg blockbuster easily earns the title of one of the most popular films of all time, so it is hardly surprising industry frontrunner Microgaming opted to launch a slot based on the story. The title is played on five reels and provides players with numerous winning opportunities as it is available in the 243-ways-to-win format.

Players can relive the adventure on their smartphones or tablets, as the Jurassic Park slot can be played on mobile devices running on iOS and Android. The game is in itself ground-breaking, as it is the first slot to use the Parallax Scrolling effect. Players will immediately notice the five reels positioned over the slowly scrolling jungle backdrop.

The graphics and animations in the game are a feast for the eyes, and the slot is loaded with great features that further increase its entertainment value. One of the most appealing is the Alert Mode, triggered at random whenever players land a T-Rex symbol on the reels. The T-Rex unleashes 35 wilds to appear on the next six spins.

There are five different rounds of free spins to unlock and each is based on one of the dinosaurs featured in the game – the T-Rex, the Velociraptor, the Brachiosaurus, the Dilophosaurus and the Triceratops. At first, the bonus spins are triggered at random, but once players manage to unlock the free spins 25 times, they will be able to select one of the five features themselves.

Two of the most important symbols to look out for are the Jurassic Park logo, which functions as a stacked wild, and the mosquito trapped in amber, which, as a scatter, can trigger the rounds of free spins. Coin values vary between £0.01 and £0.05, with a maximum bet amount of £15.00 per spin.

Microgaming’s Jurassic Park Mobile

Beach Life

ProviderPlaytech
TypeJackpot slot
ThemeHoliday
Bet Range£0.10 – £10
Number of ReelsFive
Number of Paylines20 adjustable win lines
Wild SymbolSun
Scatter SymbolTreasure chest and sand castles
Bonus Features Wild substitution
Sunken Treasure Bonus game
Progressive jackpot prizes
RTP93.25%
VolatilityMedium
Maximum Payout100,000x the line bet

Beach Life is among the most popular slots in the portfolio of software developer Playtech and, the good news is, it too has been adapted for mobile play on devices based on Windows, iOS and Android. The game boasts a fun summer theme, a colossal progressive jackpot and a nice range of engaging features. Playtech has successfully captured the festive beach atmosphere with symbols like ice creams, popsicles, surfers and sand castles. The game features five reels and offers a total of 20 paylines.

The sun assumes the role of a wild and is indeed the most lucrative symbol in the game. If you land five suns on the 20th payline, you will be awarded the massive progressive jackpot. Should the sun appear five times on any of the other paylines, you will receive a prize of 100,000 coins.

The sand-castle symbol is a scatter and, as such, multiplies the payouts by the total amount bet. Those who are lucky enough to line up three to five bonus symbols on an active payline will unlock a bonus mini-game of the “pick me” variety. The game takes players to a separate screen containing twelve treasure chests with hidden prizes. Players must select three of the chests to collect the guaranteed prizes inside.

Playtech’s Beach Life Mobile

Piggy Riches

ProviderNetEnt
TypeVideo slot
ThemeWealth
Bet Range£0.15 – £15
Number of ReelsFive
Number of Paylines15 fixed paylines
Wild SymbolGentleman pig
Scatter SymbolLady pig
Bonus FeaturesRounds of free spins, win multipliers, wild substitution
RTP96.38%
VolatilityMedium
Maximum Payout36,000x

Courtesy of respected software developer NetEnt, Piggy Riches is a five-reel slot that features 15 paylines. Due to its popularity among slot fans, the title has been adapted for the NetEnt Touch platform to be played on the go via smartphones and tablets. The quality of the graphics and animations is superb, which is something one would expect from an industry leader like NetEnt.

Some of the symbols the game employs include a piggy bank, a purse, a key and bags full of gold coins. Needless to say, the piggies represent the most important symbols. Please note that payouts are awarded only when winning combinations are aligned from left to right on the reels. The male pig plays the role of a wild symbol and multiplies line wins by up to 3x, while the female pig is a scatter that unlocks up to 28 free spins. The maximum multiplier on free-spin winnings is 6x, but more importantly, players are awarded one extra spin each time they land a scatter symbol during the bonus round.

The maximum prize players can potentially collect in the game amounts to 360,000 coins. The maximum amount players are allowed to bet in Piggy Riches is set at £75.00, while chip values range between £0.01 and £0.50.

NetEnt’s Piggy Riches Mobile

Avalon II

ProviderMicrogaming
TypeVideo slot
ThemeKing Arthur
Bet Range£0.20 – £180
Number of ReelsFive
Number of Paylines243 ways to win
Wild SymbolGame logo
Scatter SymbolChest
Bonus Features Grail bonus feature
Forest Falls Bonus
Isle of Avalon bonus game
Hall of Shadows bonus game
Dusky Moors Bonus Game
Morgan’s Keep bonus game
Misty Vale bonus game
Lake of Legend bonus game
Whispering Woods bonus game
RTP95.92%
VolatilityMedium
Maximum Payout16,200x the stake

If you are fascinated by the old folklore stories about King Arthur and the Knights of the Round Table, Microgaming’s Avalon II slot is just the thing for you. What is more, you will be able to enjoy this five-reel slot with its 243 ways to win from any place, at any time, as the game has been customised for mobile devices based on Android and iOS.

The game is a sequel to Microgaming’s Avalon slot and, as such, offers improved 3D graphics and animations, not to mention it is literally packed with great bonus features. There are eight bonus games in Avalon II, to be more precise. Once you trigger the Grail Bonus feature a specific number of times by landing three or more Grail symbols on the reels, you will be able to unlock the other seven bonus games one after another.

The Lake of Legend feature is a dice-roll mini-game, while the Misty Vale feature allows players to pick their wild and receive up to 15 free spins with 1x or 2x multipliers. The Whispering Woods bonus feature requires players to pick one out of five options and potentially benefit from a 160x multiplier. The Forest Falls Bonus, on the other hand, rewards slot fans with 20 free spins.

The remaining bonus features are as follows: Dusky Moors, Morgan’s Keep, Hall of Shadows and Isle of Avalon. Each has its own peculiarities and hides unique rewards when unlocked, which suffices to explain why Avalon II enjoys such tremendous popularity among slot fans.

Microgaming’s Avalon II Mobile

Book of Vikings

ProviderPragmatic Play
TypeVideo slot
ThemeNorse mythology
Bet Range£0.10 – £100
Number of ReelsFive
Number of Paylines10
Wild SymbolBook
Scatter SymbolBook
Bonus FeaturesRounds of free spins
Expanding symbols
RTP96.50%
VolatilityVery high
Maximum Payout5,000x

Courtesy of Pragmatic Play, Book of Vikings is a video slot clearly themed around Norse mythology. It has five reels, three rows and ten win lines that are turned on at all times, and for reel spinners to plunge into the action, they need to stake anywhere between £0.10 and £100.

Although Book of Vikings is not overflowing with special features, this video slot has enough extras to keep reel spinners busy for quite a while, as it is equipped with a free-spins feature. It is triggered when at least three book scatter icons land on the reels simultaneously.

When players unlock the free-spins feature, they will be awarded ten bonus rounds during which a special expanding symbol is used. This symbol can bring players juicier payouts, as it expands vertically to cover all three positions on the reels, thus increasing the chances of forming winning combinations.

The book bonus symbol will not only give players entry into the free-spins feature but will also bring payouts of up to 200x the total bet whenever it lands on all five reels.

Book of Vikings
Pragmatic Play’s Book of Vikings Mobile

Book of Dead

ProviderPlay’n GO
TypeVideo slot
ThemeAncient Egypt
Bet Range£0.10 – £100
Number of ReelsFive
Number of Paylines10 adjustable
Wild SymbolTomb
Scatter SymbolTomb
Bonus FeaturesFree spins, expanding symbols
RTP96.20%
VolatilityHigh
Maximum Payout250,000 coins

Book of Dead is among the flagship games of Play’n GO, so much so that the provider rolled out several sequels to it. Inspired by Ancient Egypt, this video slot has five reels, three rows and ten adjustable win lines.

This slot invites players to join Rich Wilde, an expert and fearless adventurer, on a journey to Ancient Egypt, where he will attempt to unlock the pharaoh’s tomb and find the Book of Dead. The reel engine is set in an ancient burial chamber, and a rhythmic soundtrack helps build up anticipation during each spin of the reels. The intrepid explorer Rich Wilde plays a crucial role in this slot as he is the most valuable regular icon.

The ancient tomb acts as both wild and scatter symbol, and if three such symbols pop up simultaneously, they will unveil the Book of Dead and award ten free spins. After players unlock the free-spins feature, they will have the chance to secure even more wins, as one of the symbols will be chosen to become an expanding one. The ancient tomb can help players collect more generous payouts, as it can substitute for all other symbols from the paytable.

Book of Dead
Play’n GO’s Book of Dead Mobile

Age of the Gods

ProviderPlaytech
TypeVideo slot with four progressive jackpots
ThemeGreek mythology
Bet Range£0.20 – £100
Number of ReelsFive
Number of Paylines20 fixed paylines
Scatter SymbolGame logo
Wild SymbolWILD
Bonus Features

Pantheon of Power
Athena Free Game
Zeus Free Game
Poseidon Free Games
Hercules Free Games
Age of the Gods Jackpot Game

RTP95.02%
VolatilityMedium-high
Maximum Payout10,000x

Powered by Playtech, Age of the Gods is the first title from the highly popular slot series of the same name. This video slot offers superior graphics and animations and has a traditional set-up. The spinning action takes place over a 5×3 reel engine set somewhere high in the clouds, as Mount Olympus serves as a backdrop. Winning combinations can be formed across the 20 win lines, which are non-adjustable.

The slot is themed around Greek mythology and is packed with the power of the gods, as Hercules, Athena, Poseidon, Zeus and Hades all play a central role in the game.

The Age of the Gods bonus game is sure to keep players engaged, as once reel spinners gain entry into it, they stand the chance to trigger one of four gods’ free-games features. By matching three Athena, Zeus, Poseidon or Hercules symbols, players will enter the respective free-games feature. While trying to collect at least three identical gods’ symbols, reel spinners should hope not to uncover Hades, as the Age of the Gods bonus game will then end and they will be returned to the base screen.

Each free-games feature comes with its unique goodies and, depending on the gods’ images uncovered, players will benefit from win multipliers, sticky wilds, random wilds and stacked wilds.

Without a doubt, Age of the Gods’ biggest claim to fame is the jackpot game that is unlocked at random. There are four progressive jackpot prizes to be won, and to bag one of these constantly growing awards, players need to uncover three identical symbols.

Playing this Greek mythology-inspired slot is possible on all devices, which might be one more reason why reel spinners are eager to give it a try.

Age of the Gods
Playtech’s Age of the Gods Mobile

Dead or Alive II

ProviderNetEnt
TypeVideo slot
ThemeWild West
Bet Range£0.09 – £9
Number of Reels5
Number of Paylines9
Wild SymbolEach of the five outlaws
Scatter SymbolBull skull with two pistols
Bonus FeaturesSticky wilds, wild substitution, High Noon Saloon, Old Saloon and Train Heist free games
RTP96.80%
VolatilityVery high
Maximum Payout100,000x the bet amount

Optimised for play on Android and iOS, Dead or Alive II was one of the most highly anticipated video slots by NetEnt. With five reels, three rows and nine fixed win lines, this Wild West-inspired slot is a sequel to many players’ favourite, Dead or Alive, which was rolled out in 2009.

Visually, the slot is sure to impress, as the quality of the graphics and animations is unsurpassed. The background audio is perfectly in keeping with the Wild West theme and adds to the suspense of the gameplay.

Once they find themselves in the Wild West town, reel spinners will assume the role of sheriff and must try their best to catch the outlaws. While enjoying Dead or Alive II, players should keep an eye out for the wild and scatter symbols, as they can award some truly juicy payouts.

Landing three bull-skull-and-pistols scatter icons is what reel spinners should hope for; this grants entry into one of the free-spins features: High Noon Saloon Free Spins, Old Saloon Free Spins or Train Heist Free Spins. After they activate the Train Heist Free Spins feature, players will get a win multiplier of up to 16x, which increases by one each time a wild symbol appears on the reels; an extra free spin is also awarded.

When two wild symbols pop up during the High Noon Saloon Free Spins feature, they transform into double-multiplier wild symbols. Getting three wild icons means that players will benefit from triple-multiplier wilds. To secure five more free rounds, players need sticky wilds on each of the five reels.

All wins in the Old Saloon feature are multiplied by two, and landing one or two sticky wilds will bring players five additional free rounds.

Dead or Alive II
NetEnt’s Dead or Alive II Mobile

Thunderstruck II Mega Moolah

ProviderMicrogaming
TypeVideo slot
ThemeNorse mythology
Bet Range£0.30 – £24
Number of ReelsFive
Number of Paylines243 ways to win
Wild SymbolGame logo
Scatter SymbolHammer
Bonus FeaturesWild Storm Feature
Wild substitution win multiplier
Valkyrie Free Spins Feature
Loki Free Spins Feature
Odin Free Spins Feature
Thor Free Spins Feature
RTP93.38%
VolatilityMedium
Maximum Payout8,000x

Thunderstruck II is another video slot designed by Microgaming that receives jackpot treatment and is part of the provider’s Mega Moolah jackpot network. This Norse-mythology saga truly stands out from the crowd with its action-packed gameplay, bolstered by a number of bonus features.

Thunderstruck II Mega Moolah plays out on five reels, three rows and awards payouts in 243 ways. This slot comes with two special symbols, and the wild icon might be the key to some handsome prizes, as whenever it completes a winning combination, the payouts are doubled. The Wild Storm feature can also deliver hefty rewards, as it strikes randomly and can turn all five reels wild.

Thunderstruck II Mega Moolah offers plenty of free rounds, as it comes with four free-spins features: Valkyrie, Odin, Thor and Loki. Depending on the feature players enter, they will receive a different number of bonus rounds, win multipliers, wild-magic symbols that award extra wilds or rolling reels.

The slot also features a four-tiered jackpot, and as they spin the reels, players have the chance to collect a Mini, Minor, Major or Mega jackpot prize. To stand a chance of landing one of these massive awards, players should keep an eye out for the special progressive-trigger coins that can land on the second, third and fourth reels.

Thunderstruck II Mega Moolah
Microgaming’s Thunderstruck II Mega Moolah Mobile

Money Train 2

ProviderRelax Gaming
TypeVideo slot
ThemeWild West
Bet Range£0.10 – £20
Number of ReelsFive
Number of Paylines40
Wild SymbolSkull
Scatter SymbolBonus symbols and golden bonus symbol
Bonus FeaturesRespins feature
Money Cart bonus feature
Bonus buy feature
RTP96.40%
VolatilityVery high
Maximum Payout50,000x

Money Train 2 by Relax Gaming is a video slot with gorgeous graphics and smooth animations. It is a 40-payline, five-reel slot that takes reel spinners on an extraordinary adventure to the Wild West. Since Money Train became one of Relax Gaming’s most popular releases, it is not surprising that the provider rolled out a sequel that is just as crowd-pleasing.

Reel spinners can have a shot at landing a massive payday thanks to the bonus features Money Train 2 offers. The Money Cart Bonus feature is centre-stage in this slot and starts when players land at least three bonus symbols.

The triggering symbols will then reveal a win-multiplier value, and players will receive three re-spins. If all positions on the reels are filled, an extra reel is added. After the feature starts, players might land additional bonus symbols, with the gold bonus symbol awarding prizes of up to 200x. There are also special character symbols that can boost players’ winnings further.

The Respin feature is another intriguing extra in Money Train 2 and is unlocked when two standard bonus symbols appear together. Each of these special symbols awards a multiplier and a re-spin.

Money Train 2
Relax Gaming’s Money Train 2 Mobile