Best UK Online Slot Game Providers
- Full terms apply | +18 | #ad | New customers only - BeGambleawareNew UK Players only. 18+New Players Only. Wager from real balance first. 50X wager the bonus. Contribution varies per game. selected games only. Wager calculated on bonus bets only. Bonus valid 30 days / Free spins valid 7 days from receipt. Max conversion: 3x the bonus amount or from free spins: £20. Withdrawal requests void all active/pending bonuses. Excluded Skrill and Neteller deposits.A minimum deposit of £10 applies.Mr Gamble always insists that players gamble responsiblyShow more
- Full terms apply | +18 | #ad | New customers only - BeGambleawareNew UK Players only. 18+Automatically credited upon deposit. Cancellation can be requested. First Deposit Only. Max. Bonus £50. Maximum amount of Free Spins is 50. Game: Book of Dead, Spin Value: £0.10. WR of 30x Deposit + Bonus amount and 60x Free Spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings and bonus amount or £5 (lowest amount applies). Spins must be used and/or Bonus must be claimed before using deposited funds. Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Bonuses do not prevent withdrawing deposit balance. *Games are subject to availability. Bonus Policy applies.A minimum deposit of £20 applies.Mr Gamble always insists that players gamble responsiblyShow more
- Full terms apply | +18 | #ad | New customers only - BeGambleawareNew UK Players only. 18+A minimum deposit of £20 applies.Mr Gamble always insists that players gamble responsiblyShow more
- Full terms apply | +18 | #ad | New customers only - BeGambleawareNew UK Players only. 18+First Deposit Only. Min. deposit: £10, max. Bonus £75. Game: Book of Dead, Spin Value: £0.10. WR of 30x Deposit + Bonus amount and 60x Free Spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings and bonus amount or £5 (lowest amount applies). Free Spins must be used before deposited funds. Bonuses do not prevent withdrawing deposit balance. First Deposit/ Welcome Bonus can only be claimed once every 72 hours across all Casinos. Bonus Policy applies.A minimum deposit of £10 applies.Mr Gamble always insists that players gamble responsiblyShow more
- Full terms apply | +18 | #ad | New customers only - BeGambleawareNew UK Players only. 18+First-time depositors only (18+ country restrictions apply). Min deposit: £10. Max offer: 200% Bonus up to £20 Games Bonus & 50 Free Spins (on Fruit Blast). Promo code: SLOTS50. Any Games Bonus winnings, if applicable, must be wagered 35x before withdrawal. Any Free Spins winnings, if applicable, will be credited as bonus funds and capped at £5. FS are valid for 7 days and any winnings must be wagered 35x before withdrawal. Games Bonus win cap: £100 + original bonus amount. Wagering contribution varies by game. We reserve the right to deny bonuses based on abusive bonus activity across sites operated by the Company. Deposit balance is available for withdrawal at any time (UK only). General withdrawal restrictions apply. Valid until 31.12.2023. View Full T&CsA minimum deposit of £10 applies.Players must use the bonus promotion code SLOTS50 in order to apply this bonus.Mr Gamble always insists that players gamble responsiblyShow more
- Full terms apply | +18 | #ad | New customers only - BeGambleawareNew UK Players only. 18+A minimum deposit of £20 applies.Mr Gamble always insists that players gamble responsiblyShow more
- Full terms apply | +18 | #ad | New customers only - BeGambleawareNew UK Players only. 18+A minimum deposit of £20 applies.Mr Gamble always insists that players gamble responsiblyShow more
- Full terms apply | +18 | #ad | New customers only - BeGambleawareNew UK Players only. 18+A minimum deposit of £20 applies.Mr Gamble always insists that players gamble responsiblyShow more
- Full terms apply | +18 | #ad | New customers only - BeGambleawareNew UK Players only. 18+A minimum deposit of £10 applies.Mr Gamble always insists that players gamble responsiblyShow more
- Full terms apply | +18 | #ad | New customers only - BeGambleawareNew UK Players only. 18+18+; new depositing players only. Welcome package split over 3 deposits: Min. 1st deposit £10. Min. 2nd and 3rd deposit £20. 35X Wagering requirement applies to match up bonus and spins. Spins credited in specific games. Spins expire after 24 hours. T&Cs apply.A minimum deposit of £10 applies.Mr Gamble always insists that players gamble responsiblyShow more
- Full terms apply | +18 | #ad | New customers only - BeGambleawareNew UK Players only. 18+18+. New Players Only. Min. deposit $20. Max. bonus bet is $5. Bonus spins on selected games only and must be used within 72 hours. Winnings from Bonus spins credited as bonus funds and capped at $20. Bonus funds expire in 30 days, unused bonus funds will be removed. Welcome Offer is 100% match up to $300 plus 50 bonus spins on your 1st deposit. Bonus funds are separate to Cash funds, and are subject to 40x wagering the total bonus & cash. Only bonus funds count towards wagering contribution. Affordability checks apply. Terms apply. BeGambleAware.org.A minimum deposit of £20 applies.Mr Gamble always insists that players gamble responsiblyShow more
- Full terms apply | +18 | #ad | New customers only - BeGambleawareNew UK Players only. 18+A minimum deposit of £20 applies.Players must use the bonus promotion code planetspins in order to apply this bonus.Mr Gamble always insists that players gamble responsiblyShow more
- Full terms apply | +18 | #ad | New customers only - BeGambleawareNew UK Players only. 18+A minimum deposit of £25 applies.Players must use the bonus promotion code casino75 in order to apply this bonus.Mr Gamble always insists that players gamble responsiblyShow more
- Full terms apply | +18 | #ad | New customers only - BeGambleawareNew UK Players only. 18+New Players Only 18+. Minimum Deposit: £10. Maximum Offer: 250% Bonus up to £35 & 20 Spins on Starburst. Bonus & Spins winnings must be wagered 35x before withdrawal. Spins expire after 24hrs. Promo Code: 250. Withdrawal terms apply. Valid until 31/12/2023 www.begambleaware.orgA minimum deposit of £10 applies.Players must use the bonus promotion code 250 in order to apply this bonus.Mr Gamble always insists that players gamble responsiblyShow more
- Full terms apply | +18 | #ad | New customers only - BeGambleawareNew UK Players only. 18+New Players Only 18+ (UK only). Minimum Deposit: £20. Maximum Offer: 150% Bonus up to £150 & 100 Spins on Book of Dead. Bonus & Spins winnings must be wagered 35x before withdrawal. Spins expire after 24 hours. Promo Code: BOOK100. Withdrawal terms apply. Valid until 31/12/2023. www.begambleaware.org.A minimum deposit of £20 applies.Players must use the bonus promotion code BOOK100 in order to apply this bonus.Mr Gamble always insists that players gamble responsiblyShow more
- Full terms apply | +18 | #ad | New customers only - BeGambleawareNew UK Players only. 18+New UK depositing players only. Valid until 31.12.2023. This offer can be claimed once during the promotion period. Offer valid on first deposit only when using Promo Code. Min. deposit: £10 Max Bonus: £10 and 50 Spins on . Any bonus awarded will be credited to your Bonus Balance and is subject to our bonus terms and 35x wagering requirements (bonus from deposit) before being withdrawn. 50 spins are awarded, if applicable, will be on the game(s): Gold Blitz, and will be credited instantly. Winnings from these spins and the deposit must be wagered 35xA minimum deposit of £10 applies.Mr Gamble always insists that players gamble responsiblyShow more
- Full terms apply | +18 | #ad | New customers only - BeGambleawareNew UK Players only. 18+*New players, £10+ deposits, no e-wallets / prepaid cards, 30x Playthrough on Bonus and 50x on Free Spins. T&Cs applyA minimum deposit of £10 applies.Players must use the bonus promotion code NBWELCOME500 in order to apply this bonus.Mr Gamble always insists that players gamble responsiblyShow more
- Full terms apply | +18 | #ad | New customers only - BeGambleawareNew UK Players only. 18+18+. New Players Only. Min Dep £20. Offer: 100% of 1st deposit up to £100 + 100 Spins on Big Bass Bonanza. Spins expire after 23:59 GMT on day they are credited. Spins winnings credited as bonus, separate to Cash funds, & subject to 35x wagering of bonus + deposit amounts. Bonus funds expire after 21 days. Affordability checks apply. Terms Apply. BeGambleAware.org.A minimum deposit of £20 applies.Mr Gamble always insists that players gamble responsiblyShow more
- Full terms apply | +18 | #ad | New customers only - BeGambleawareNew UK Players only. 18+New Players Only. Wager from real balance first. 50X wager the bonus. Contribution varies per game. Selected games only. Wager calculated on bonus bets only. Bonus valid 30 days / Free spins valid 7 days from receipt. Max conversion: 3 times the bonus amount or from free spins: £20. Min Deposit £10. Withdrawal requests void all active/pending bonuses. Excluded Skrill and Neteller deposits.A minimum deposit of £10 applies.Mr Gamble always insists that players gamble responsiblyShow more
- Full terms apply | +18 | #ad | New customers only - BeGambleawareNew UK Players only. 18+A minimum deposit of £20 applies.Mr Gamble always insists that players gamble responsiblyShow more
- Full terms apply | +18 | #ad | New customers only - BeGambleawareNew UK Players only. 18+Full terms apply| +18 | #ad | New customers only - BeGambleawareAD 18+, New customers only, min deposit £10, wagering 60x for refund bonus, max bet £5 with bonus funds. Free Spins bonus has x40 wagering. 23 free spins on registration (max withdrawal is £100). 100% refund bonus up to £111 + 77 spins on 1st deposit. No max cash out on deposit offers. Eligibility is restricted for suspected abuse. Welcome bonus excluded for players depositing with Ecopayz, Skrill or Neteller. Full T&Cs apply. Begambleaware.org, Gamble Responsibly.A minimum deposit of £10 applies.Mr Gamble always insists that players gamble responsiblyShow more
- Full terms apply | +18 | #ad | New customers only - BeGambleawareNew UK Players only. 18+A minimum deposit of £20 applies.Mr Gamble always insists that players gamble responsiblyShow more
- Full terms apply | +18 | #ad | New customers only - BeGambleawareNew UK Players only. 18+A minimum deposit of £10 applies.Mr Gamble always insists that players gamble responsiblyShow more
- Full terms apply | +18 | #ad | New customers only - BeGambleawareNew UK Players only. 18+New players only, min deposit £10, wagering 45x, max bet £5 with bonus funds, 100% up to £100 bonus on 1st deposit. No max cash out on deposit offers. Welcome bonus excluded for players depositing with Skrill or Neteller. Cashback is cash with no restriction. Full T&C’s apply. Cashback will be paid from your deposits. You can claim the cashback 24h after your depositsA minimum deposit of £10 applies.Mr Gamble always insists that players gamble responsiblyShow more
Best UK Casinos By Game Providers
Gaming providers are what makes online casinos possible; the casinos themselves don’t produce any games. The gaming providers create different games with different features and in different styles. While they may look similar on the surface, there are vast differences under the hood. You can read more about these differences on our page dedicated to casino games and video slots because here we’ll focus on the providers of these wonderful games.
If you know which provider you’d like to know more about, just skip ahead and find the provider in the list below. You’ll find all the gaming providers for UK casinos, such as NetEnt, Microgaming, Playtech, Evolution, Play’N GO, and many more.
Why Trust Mr. Gamble?
For the safety of players and to keep operators accountable, the team at Mr. Gamble implements a world-class evaluation process for all online casinos. The team incorporates a strict due diligence process for listing casinos on Mr. Gamble by verifying the operating regions of casinos and the validity of local licenses, among other aspects such as customer service, game selection, banking methods, and bonuses.
Our editorial policy includes fact-checking all casino information while including real-world data to provide the most relevant and helpful guide for readers around the world. At Mr. Gamble, the players’ safety and satisfaction are our top priority — you can rely on us to get the best possible offers from licensed online casinos.
An Overview of Casino Game Providers
There are few names in the online casino industry that are well known for providing some truly high-quality games. When it comes to live casino games for online casinos, Evolution Gaming is truly outstanding. There are about a handful of other game providers of live casino games, too, such as NetEnt and Microgaming, but Evolution is the market leader.
When it comes to video slots it’s more difficult to say who the best provider is. There are about a dozen top slot providers who could claim the spot at any given moment. Our personal favourites at the Mr. Gamble office are the ones listed above.
We love them for different reasons. NetEnt creates quality games for both live casinos and video slots. Microgaming is the undying classic. Yggdrasil is a fairly new company, but they’re innovative in their approach to slots.
Evolution is totally unbeatable with their live casino games, both in regards to quality and innovation. Play’N GO stuffs their games with extra features. Betsofts’ effort to gamify their video slots is amazingly innovative. iSoftBet has a gamification tool that’s excellent for mobile slots. Playtechs’ branded slots are one-of-a-kind… We like them for different reasons.
With that said, the other gaming providers do have their own benefits. There are still new ones being launched on a fairly regular basis with their own niches and charm. So read up on the slot game providers to find your own personal favourites.
Online Casino Providers of Casino Games

There are many different types of online casino games. “Video” is a broad term to cover all non-live casino games. Video Poker and Video Slots are the simplest explanations for this. It’s the difference between mechanized poker games and slots.
In the realm of live casino games, there’s been a revolutionary evolution with Evolution Gaming on the frontline. Blackjack, Roulette, Poker and other classical table games in all sorts of variation are no longer the only options. Board games and TV-shows have been formatted into live casino games. The board game Monopoly is available at live casinos. The TV show Deal or No Deal too.
The casinos games have really evolved from the good old fashioned “one-armed bandits” and dice games.
What are the best online casino games?
The best online casino game depends completely on your own preference. Many players only like live casino games while others stick to video slots. Some enjoy the thrill of chasing a progressive mega jackpot, others enjoy lotteries. There’s something for everyone.
Online Slots
Mega Fortune is one of the greatest jackpot games of all time. Luxurious symbols such as champagne glasses, limousines, and diamond rings, create a fancy and enjoyable online casino experience! It’s also one of the highest paying slots of all time.
Video Slots
Another hugely popular video slot is Mega Moolah. Together with Mega Fortune, it’s the highest jackpot ever won at an online casino.
A slot that hasn’t quite received the attention it probably should is Max Quest: Wrath of Ra. The gamification of this game is something truly new. Many online casino providers are still stuck in the old ways of thinking. 5 wheels and 3 lines with no extra features “spin-n-win” doesn’t quite cut it anymore. Sure, the concept still has its charm, but it doesn’t entertain for hours.
Online Casinos UK and Game Platforms
Online casinos make agreements with slot providers. A single casino is free to make agreements with as many online casino providers as they want. That’s why we’re of the belief that, the more slot providers at a casino the better the casino is.
When making an agreement with a provider, the casino gets access to the gaming providers platform. Via the platform, casinos get a wide selection of the best and most popular games from said provider.
Not all game platforms are compatible with all online casinos. That’s why it’s important for the casino to be built to be flexible and adaptable in order to be able to tie several different platforms to their system, and thus be able to offer more casino games.
Why does the game platform matter so much for UK Players?
There are many game platforms available. For example, Microgaming’s Quickfire makes it easier for the company to release new games. At the same time it helps online casinos to get some great Microgaming games to their offerings.
Other game providers can also use the Quickfire game platform. With a Microgaming license, slots providers have access to the Quickfire platform and can release their own games there. To mention a few game platforms we can tell you that Quickspin, Genesis Gaming, and Rabcat are working this way.
The game platform is very important for an online casino. It’s how they offer a wide range of games to their customers without the need of purchasing licenses for all the different games.
Another popular platform used by many is NYX Gaming. NYX has its own provider as well, which is NextGen Gaming. The NYX Gaming platform mostly consists of its own games, but there are some games included from other slot game providers as well.
Jackpot Game Providers
Jackpot slots and games with Progressive Mega Jackpot are very popular nowadays. A progressive jackpot means that the jackpot sum grows every single bet placed on the slot. This comes in 2 variations - Network Jackpots and single Casino jackpots.
If it’s a single casino mega jackpot, then it’s only the bets made on the jackpot game on that particular casino that contribute to the progressive jackpot growth. If it’s a network jackpot, then all casinos within the game platforms network will contribute to the growth of the progressive jackpot.
An example is Microgaming’s Mega Moolah. It’s one of the most popular progressive mega jackpot slots. Mega Moolah is the Guiness World Record holder of the largest jackpot for online casino games. In 2016 the Mega Moolah jackpot paid out close to €20 million. This is a prime example of a network jackpot. NetEnt has also served some massive jackpot wins throughout the years.
Microgaming and NetEnt are the two biggest online casino providers offering jackpots, but there are some smaller jackpot game providers on the market as well. For example, Betsoft’s Glam Life slot offers jackpots up to several millions of euros, same as Yggdrasil’s Mega Joker.
To read more about these types of games you can simply visit our page dedicated to Progressive Mega Jackpot slots.
Live Casino Game Providers

Playing on live casinos is one of the hottest trends in recent casino history. The recent increase in popularity has brought many gaming providers that are focusing on creating live casino games. An example is Evolution Gaming, they’ve brought several successful live casino games to the market, some totally revolutionary. Evolution is able to offer a versatile live casino game experience with the feeling of being on a real land-based casino.
Other big gaming providers in this field are NetEnt and Microgaming, both have a lot of high-quality live casino games to offer. We must also mention Playtech who’s gained some recognizability with the amount of games and their quality.
A fresh and new live casino gaming provider is Extreme Live Gaming. Their live casino streams straight from London to your screen. This gaming provider is still evolving and seems to be a very promising company.
NetEnt
Many players hold NetEnt as one of the best slot game providers on the market. They’re not wrong, as many of NetEnts’ games are found on the list of the most popular casino games. And for a good reason: The graphics, audio, usability, and great bonus rounds form a mix that makes the casino gaming experience top-notch.
One of the distinguishing traits of NetEnt games is the amount of bonus features, there are usually a bundle of free spins rounds and bonus functions. They also offer several progressive jackpot slots.
No wonder there are so many NetEnt casinos! Read our review of NetEnt to find bonuses and no deposit bonuses for NetEnt games.
Microgaming
Microgaming is one of the market-leading companies. They’ve been serving casino players for a couple of decades, but the impressive thing is how they’ve managed to maintain their status throughout the years. This company has released over 800 casino games during their history, and they keep on releasing new games on a regular basis.
Microgaming jackpots and bonuses have been in favor of the online casino community. It’s not strange that there are so many Microgaming casinos out there. Microgaming games cover every aspect of online casino games. They offer live casino games and they have the highest ever jackpot win slot in their portfolio.
Read our review of Microgaming to find bonuses and no deposit bonuses for Microgaming games.
Playtech
Playtech is one of the oldest slot game providers in the industry. They offer everything from live casino games, to video slots and horse racing. Their longevity and complete offering of gambling products makes them a favourite among online casinos. That’s the reason why there are so many Playtech Casinos available.
Read our review of Playtech to find bonuses and no deposit bonuses for Playtech games.
FAQ
❓What are online slot game providers?
Online casino providers are game providers that supply games and slots for casinos.
❔Which slot game providers pay out most?
All slot providers listed on the Mr Gamble website have games that pay handsomely. Some online casino providers with high RTP slots are NetEnt, Pragmatic Play, Microgaming and iSoftBet.
☝️Where can I find top slot providers?
You can find all top slots providers listed on the Mr Gamble website.