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  • Best Online Slots UK

    Here at JeffBet, our mission is to bring you the best online slots games available in the UK. We currently offer the best UK online slots that meet the highest standards set out by our game testers.

    Below are some of our top-rated games available to play at our online casino today:


    Slot NameWhat makes it one of the best?
    StarburstStarburst is one of the best-rated slot games of all time and was developed by NetEnt. It has an outer space theme with five reels and 10 paylines. You will not find many bonus rounds in this slot game. It is super simple with just a Starburst wilds feature. This feature can create multiple wild reels that are locked in place as the reels respin.
    Gonzo’s QuestGonzo’s Quest is one of NetEnt’s top slot games with five reels and 20 paylines. It has a South American jungle theme as you join Gonzo on a quest for lost cash treasures. In this game, the popular avalanche feature is where symbols in winning combinations are removed from the reels to allow new symbols to drop and potentially create more wins. With each avalanche, there is also an increasing multiplier in play. In the free spins round, you can get up to 10 free spins and the avalanche multiplier could reach 15x.
    Thunderstruck IIThunderstruck II is a Norse mythology-themed online slot game rated highly. The game is developed by Microgaming with five reels and 243 ways to win. This game is packed with bonus features, including the wild storm feature, which can turn up to five reels wild. There is also a great hall of spins feature with four modes to play in and up to 25 free spins available. In each mode, you could get wins multiplied by 5x, rolling reels, extra wilds, and multipliers.
    Fluffy FavouritesFluffy Favourites is an Eyecon slots game that is very popular. The game transports you to a funfair with lots of cute and cuddly soft toy animals on the reels. This is an iconic slot game found at all of the best slot sites. There are two main bonus features in this game. First is the toy box pick feature where you can use the fairground grabber machine to get cuddly toys with prizes attached to each. There is also a free games feature where you can get up to 25 bonus spins and all wins are trebled.
    Immortal RomanceImmortal Romance is one of Microgaming’s most played slot games and has a dark vampire theme. You can spin its five reels with 243 ways to win and enjoy a range of bonus features. This includes a wild desire feature with wild reels in play and a huge free spins round with four different modes to play in. Each mode may award multipliers, rolling reels and extra wilds.
    Mega MoolahMega Moolah is arguably one of the most popular online slots with a progressive jackpot. This Microgaming slot game has an African safari team with a lion wild symbol and a free spins feature where all wins are trebled. The highlight of the game is the jackpot bonus game that can trigger randomly. Here, a mini, minor, major or mega jackpot is up for grabs, with the mega jackpot starting at £2 million.

    You can enjoy all of these highly-rated slots right here at JeffBet.

    How to Play the Best Online Slots at JeffBet?

    You can enjoy the best online slots at JeffBet by following the below steps:

    1. Create a JeffBet account
    2. Make your first deposit to claim our welcome bonus
    3. Head on over to our casino lobby
    4. Click on the ‘slots’ tab or type in the slot you are looking for in the search box
    5. Click on your chosen game to get started

    Which Online Slots Have the Best Payouts?

    If you aim for the largest wins possible, you will want to stick to playing the best payout online slots. Here are some of the best payout slots available to spin today at JeffBet:

    Slot GameTop Payout
    San Quentin xWays150,000x
    Rome The Golden Age100,000x
    Fire in the Hole xBomb60,000x
    Mega MoolahMillions

    If you want to play for the biggest jackpots, you should opt for progressive jackpot slots. You will usually need to place a max bet on progressive jackpot games to be eligible for these large wins, which can reach into the millions.

    Which Are the Best Online Slots Software Providers?

    Some of the best software providers for online slots are:

    Software ProviderGames
    Play ‘n GOPlay ‘n GO is among the most innovative software developers in the online gambling industry today. They offer top games such as Book of Dead, Reactoonz, Fire Joker, Legacy of Egypt and Moon Princess.
    MicrogamingMicrogaming has been providing amazing slot machines for decades and has many iconic games in its library. These include Immortal Romance, Thunderstruck II, Jurassic Park, Game of Thrones, and Break Da Bank. It also has some of the biggest progressive jackpot games anywhere online, like Mega Moolah.
    NetEntNetEnt has a huge range of go-to slot titles known for their high-quality graphics, range of bonus features and cool themes. This includes games like Dead or Alive, Gonzo’s Quest, Blood Suckers, Finn and the Swirly Spin, Piggy Riches and Jumanji.
    EyeconEyecon has a small range of slot games, but many have reached iconic status. Many of the most played slots online are from Eyecon’s development team. The top games you can play from this developer include Fluffy Favourites, Shaman’s Dream, Enchanted Prince and Sugar Train.
    Blueprint GamingIf you want to spin slots with the highest-quality graphics, look no further than the revolutionary design of slots from Blueprint Gaming. Some of their biggest slot titles include Fishin’ Frenzy Megaways, Ted, Top Cat, Diamond Mine, Slots O’ Gold and Wish Upon a Jackpot.

    What Are the Best Online Slot Themes?

    Another method for finding the best online slots is by themes. Here are some of the most popular themes:

    ThemeSlot Games
    IrishRainbow Riches, Slots O’ Gold, Leprechauns Lucky Charms, Clover Rollover 2, Irish Luck
    VampireBlood Suckers, Immortal Romance, Wild Blood II, Blood Queen
    SpaceStarburst, Fluffy in Space, Space Wars
    South AmericanGonzo’s Quest, Luchadora, Extra Chilli
    TV/FilmGame of Thrones, Jurassic Park, Jurassic World, Jumanji, Narcos, Ted
    EgyptLegacy of Egypt, Rich Wilde and the Book of Dead, Cleopatra
    AnimalMega Moolah, Return of Kong, Piggy Riches Megaways, Buffalo Lightning
    Greek MythologyDivine Fortune, Rise of Olympus, Zeus Lightning Power Reels, Athena Ascending
    Viking/Norse MythologyThunderstruck II, Viking Runecraft, Champions of Valhalla, Odin’s Riches


    Yes, you can access the most popular slot games on the go via your mobile or tablet device.
    No, online slots are not rigged when you play online at a trustworthy online casino such as JeffBet.
    Some of the best online slot games you can play at JeffBet include Gonzo’s Quest, Starburst, Twin Spin, Thunderstruck II, Sahara Riches Cash Collect, Reel King, Immortal Romance, Dead or Alive, Fishin’ Frenzy Megaways and Reactoonz 2.