New Players Only. Wagering occurs from real balance first. 50X wagering the bonus. Contribution may vary per game. Available on selected games only. The wagering requirement is calculated on bonus bets only. Bonus valid 30 Days from receipt. Max conversion: 3 times the bonus amount. Withdrawal requests void all active/pending bonuses. Excluded Skrill and Neteller deposits. Full Terms Apply
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Best Online Slots UK
You can end your search for the best UK slots sites as all of the top slot games can be found right here at JeffBet! At our site, you can play slots from all of the world’s most reputable software providers and potentially take home a huge cash prize.
As the best online slot site, we offer an exciting welcome bonus to new players. Sign up today and make your first deposit to get 20 free spins on everyone’s favourite slot game, Rainbow Riches. Plus, there are no wagering requirements attached!
What Are Online Slots?
You can find online slot games at online casino sites. It is a virtual slot machine where players can spin the reels for a random outcome. This outcome can potentially lead to cash prizes being awarded.
Like slot games found at land-based casinos, many different variations are available to play. This includes classic slots, video slots and progressive slots. You will also find other types of table and card casino games available online and live casino games.
Which Are the Best Online Slots Games?
At JeffBet, we offer all of the very best UK online slots. Here are some of the top online slots UK available to play at our online casino today:
| Top Rated Online Slots | Why They Are the Best Online Slot Games |
| Starburst | Starburst is one of the most popular 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 Quest | Gonzo’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 II | Thunderstruck II is a Norse mythology themed online slot game from Microgaming with five reels and 243 ways to win. This game is packed with bonus features including the wild storm feature that 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 Favourites | Fluffy Favourites is an Eyecon slots game that transports players 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 Romance | Immortal Romance is one of Microgaming’s most spun 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 Moolah | Mega 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 online casino slots right here at JeffBet. We have a slots bonus waiting for you now. Sign up today and make your first deposit to get our 20 free spins on Rainbow Riches welcome bonus.
How to Play the Best Online Slots at JeffBet
Spinning the reels of the best UK online slots and casino games is easy at an online slots site such as JeffBet. You can easily find your favourite online slot machines in our library. Here is how to join JeffBet and get started playing today:
- Create a JeffBet account
- Make your first deposit to grab the best slots bonus of 20 free spins on Rainbow Riches
- Head on over to our casino library where you will find all of the best online slots
- Click on the ‘slots’ tab or type in the slot you are looking for in the search box
- Click on your favourite game to get started spinning
While most online casinos will have a small range of software providers available, at JeffBet, all of the biggest and best providers are available here. This includes top names such as NextGen, Microgaming, NetEnt, Elk Studios, Eyeon and Play ‘n GO. Our slot site rewards you with 20 free spins on Rainbow Riches when you make your first deposit.
Unlike many other online slot sites with high wagering requirements, we do not have any. So, you get bonus winnings credited straight to your account available for withdrawal.
Which Online Slots Have the Best Payouts?
Slot games are fun to spin and what makes them even better is that you can potentially take home large real money prizes on a winning slot machine. If you want to aim for the largest wins possible, then 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 Game | Top Payout |
| San Quentin xWays | 150,000x |
| Rome The Golden Age | 100,000x |
| Serial | 74,800x |
| Fire in the Hole xBomb | 60,000x |
| Mega Moolah | Millions |
If you want to play for the biggest jackpots, then you should opt to play progressive jackpot slots. To be eligible for these large wins that can reach into the millions, you will usually need to place a max bet on progressive jackpot games. The max bonus bet will give you the highest chance of taking home the biggest bonus winnings.
Which Are the Best Online Slots Software Providers?
All of the best slots sites such as JeffBet will offer a wide range of online casino games from various software developers. The online slots providers found at our casino provide innovative and exciting games with the potential to take home large cash prizes. Some of the top software providers that you will find providing slots in the UK and at JeffBet include:
| Software Provider | Games |
| Play ‘n GO | Play ‘n GO is one of the most innovative software developers found in the online gambling industry today. They offer top games such as Book of Dead, Reactoonz, Fire Joker, Legacy of Egypt and Moon Princess. |
| Microgaming | Microgaming has been providing amazing slot machines for decades and has many iconic games as part of its library. This includes games such as 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. |
| NetEnt | NetEnt has a huge range of go-to slot titles that are 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. |
| Eyecon | Eyecon 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. Top games you can play from this developer include Fluffy Favourites, Shaman’s Dream, Enchanted Prince and Sugar Train. |
| Blueprint Gaming | If 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?
One of the most exciting aspects of playing slots online is that you can choose from a huge array of awesome themes. All of the top UK online slot sites will offer hundreds, if not thousands of games to choose from. While many of the slots at online casinos will have similar themes and some that are a little overdone, there are always new and innovative themes to be found at the best online casino sites. Some of the top slot themes are:
| Theme | Slot Games |
| Irish | Rainbow Riches, Slots O’ Gold, Leprechauns Lucky Charms, Clover Rollover 2, Irish Luck |
| Vampire | Blood Suckers, Immortal Romance, Wild Blood II, Blood Queen |
| Space | Starburst, Fluffy in Space, Space Wars |
| South American | Gonzo’s Quest, Luchadora, Extra Chilli |
| TV/Film | Game of Thrones, Jurassic Park, Jurassic World, Jumanji, Narcos, Ted |
| Egypt | Legacy of Egypt, Rich Wilde and the Book of Dead, Cleopatra |
| Animal | Mega Moolah, Return of Kong, Piggy Riches Megaways, Buffalo Lightning |
| Greek Mythology | Divine Fortune, Rise of Olympus, Zeus Lightning Power Reels, Athena Ascending |
| Viking/Norse Mythology | Thunderstruck II, Viking Runecraft, Champions of Valhalla, Odin’s Riches |
How Can I Play the Best Online Slots for Free?
At the best UK slot sites, you will have a range of free online slots to play. This is a great option when your cash funds are running low. Free slots are available in demo mode. This allows you to test out paying online slots and see if they are right for you before spending your hard-earned cash.
To play slots online for free, simply go to the online slots sites library of games. Usually, if you hover over a particular game you can test it out for free in demo mode. Another option to play free online slots is to grab a casino bonus such as the 20 free spins for Rainbow Riches available here at JeffBet.
Best Online Slots FAQs
Yes, you can access all of your favourite slot games on the go via your mobile or tablet device.
No, when you play online slots at a trustworthy online casino such as JeffBet, you know the games are 100% fair and random. There are many reputable licensing authorities in the online gambling industry, however, for UK players, it is important to only play at sites regulated by the UK Gambling Commission.
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.
Playing online slots at JeffBet is easy. Grab our deposit bonus of 20 free spins on Rainbow Riches when you make your first deposit today.