Top Slot Providers

Have a read about who makes your favourite online slots in our guide to the industry's favourite game studios. How did they start? Where do they get their ideas and what are their most popualr games and why?

Top Online Slots Providers

Today, there are more game developers than ever competing in the iGaming space. Thankfully, for players, this means you have more choice than ever before when it comes to choosing online slot games - and new slot releases are hitting online casinos on a daily basis! In this guide, we’re going to take a look at the world’s top online slots providers. We’re going to talk a bit about the companies, their most popular games - and any innovative features they’re brought to market.

NetEnt

NetEnt is arguably the most well-known and popular software provider in the online gambling world, and this Swedish-based company is behind some of the most successful video slots in history. Founded in 1996, NetEnt has grown from a company of just three employees to a 1,000+ team today, and they have offices all over the world - including in the USA, Sweden, Malta, Poland, and Gibraltar.

Starburst Slot

Starburst Slot

An iconic slot from Netent, launched in 2013 which offers wilds, multipliers and re-spins. Theme is futuristic with gems and diamonds on the reels

Starburst Slot Features:

  • Category: Online Slot Game
  • Provider: NetEnt
  • Theme: Space, Jewels
  • Number of Reels: 5
  • Number of Paylines: 10 (Win Both Ways)
  • Minimum Bet: £0.10
  • Maximum Bet: £100
  • Jackpot Type: Non-progressive
  • RTP (Return to Player): 96.09%
  • Volatility: Low
  • Special Features: Starburst Wilds, Expanding Wilds with Re-Spins

In their 20+ years of operation, NetEnt has produced more than 300 casino games, and they were one of the early live gaming pioneers. In 2020, they were acquired by Evolution Gaming for a whopping 1.8 billion euros.

NetEnt’s Top Games

NetEnt has been responsible for a large number of hugely successful games. Their older games - including Evolution, Wonky Wabbits, Blood Suckers, Jack and the Beanstalk, and Lights - saw huge commercial success, although most have now been retired.

Starburst is arguably the game developer’s most successful release. Despite its basic design, the game is offered at almost all online casinos, and it allows players to win up to 500X their stake from an exciting re-spin feature.

Mega Moolah

Microgamings Iconic Mega “the Millionaire Maker” Moolah takes you on a Progressive Jackpot safari journey to the plains of Africa.Mega Moolah consists of a mini, minor, major and a Mega Jackpot often reaching over £5 Million

Mega Moolah Features:

  • Category: Online Slot Game
  • Provider: Microgaming
  • Theme: African Safari
  • Number of Reels: 5
  • Number of Paylines: 25
  • Minimum Bet: £0.25
  • Maximum Bet: £6.25
  • Jackpot Type: Progressive
  • RTP (Return to Player): Approximately 88.12%
  • Volatility: High
  • Special Features: Free Spins, Progressive Jackpot Bonus

Dead or Alive (the original, and DOA II) are also huge successes for the company. The latter allows you to win up to 111,111X your stake - and this is some of the biggest win potential you’ll ever see from a non-progressive jackpot video slot!

Innovative Features

Throughout the years, NetEnt has developed a number of innovative features. Firstly, they had their “OneTouch” games. These were mobile-friendly versions of their most popular video slots, allowing players to enjoy the action from their mobile devices.

NetEnt has also produced some of the world’s most popular progressive jackpot games, including Mega Fortune and Divine Fortune - and they also operate three live casino games from their custom-built live gaming studio.

Microgaming

Despite a decline in popularity over the last few years, Microgaming remains one of the leading contenders in the online gambling world. They’ve produced some of the most successful video slots in history, and were also well-known for their Viper poker software client.

Microgaming’s Top Games

Over the past two decades, Microgaming has produced hundreds of casino games, including video slots, casino table games, and instant wins. Immortal Romance is one of their most popular slot games. This Twilight-esque-themed game offers win potential of more than 11,000X and contains four exciting bonuses and features, including the renowned Wild Desire, where all five reels can transform into wild reels.

Dragonz, Thunderstruck II, Mega Moolah, Jurassic Park, Avalon II, Retro Reels Extreme Heat, Terminator 2, and 8 Acrobats are other notable releases from the software provider.

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Luckster Casino

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Luckster Casino Terms And Conditions

zT&Cs Apply. 18+. New Players Only. First Deposit: 100% up to £50 + 20 spins on Starburst. Min deposit £10. Second Deposit: 50% up to £75. Min deposit £20. Third Deposit: 50% up to £75. Min deposit £20. 35x wagering applies to spins and bonus funds. Max win is £100. Full T&Cs Apply. – www.begambleaware.org #adl T&Cs apply. Please gamble responsibly. 18+ T&C's | BeGambleAware® #AD.

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#AD New customers only, min deposit £20, wagering 40x, max bet £5 with bonus funds. Max bonus is 100% up to £100. 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. +18, Please Gamble responsible. BeGambleAware.org 18+ T&C's | BeGambleAware® #AD.

Barz Casino

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New players only, First 3 deposits only. Min deposit £10. Max total bonus £500 and 150 spins. 30x wagering (dep + bonus). 30x on spins, 4x conversion, bonus and spins valid on selected slots. T&C’s appl 18+ T&C's | BeGambleAware® #AD.

Mr Play Casino

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Applies only to new depositing players. Min deposit £10. 18+. Wagering requirement apply 35x. Offer valid for 24hr. 100 spins includes 3 deposit. See full terms apply. 18+ T&C's | BeGambleAware® #AD.

Innovative Features

Microgaming’s most innovative feature is their WowPot mechanic. WowPot is a four-tiered online progressive jackpot that has a minimum seed of a whopping 2 million euros - and there’s no limit on how big it can grow. WowPot progressive jackpots can be found in games like Mega Moolah, Wheel of Wishes, Book of Atem, and Ancient Fortunes.

Some of Microgaming’s older games - including classics like Immortal Romance and Thunderstruck II - contain what are known as achievements. As players progress through the game, they “unlock'' different awards - achievements. Unfortunately, these achievements don’t have any monetary value for players, so they’re more symbolic than anything else.

Nolimit City

Nolimit City is another Swedish-based game developer that was founded in 2013. Despite failing to see early success, the provider has, in the past couple of years, risen to become one of the biggest names in the online gambling world - and they now have offices in Malta, India, and Sweden. They are licensed by the UKGC and the MGA, among others - and are known for their highly-volatile video slots.

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Nolimit City’s Top Games

Nolimit City’s games are usually built around very volatile maths models. Deadwood is one of their most popular games - allowing players the chance of winning tens of thousands of times their stake from a thrilling free spins round - and Deadwood II was recently released as a sequel.

Other popular games from Nolimit City include Legion X, xWays Hoarder Split, San Quentin, Book of Shadows, Mental, and Tombstone RIP.

Innovative Features

Nolimit City developed the xWays and xNudge mechanics - both of which are now registered trademark mechanics of the company! xNudging wilds, when appearing in their games, “nudge” their way up or down, with each step increasing a multiplier by +1.

xWays - depending on the game - usually allows players to unlock an additional number of ways, increasing the win potential significantly. Nolimit City’s games are often accompanied by a bonus buy. This allows players to purchase direct entry to the main bonus round for a fixed cost.

Play’n Go

Play’n Go is one of the oldest companies operating in the online gambling world. Established in 1997, this Swedish-based company is licensed by online gambling regulators all around the world, and focuses on developing high-quality, great-looking casino table games, video slots, and multi-player games.

All games developed by Play’n Go are fully mobile-optimised and can be played on all iOS and Android devices.

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Play’n Go’s Top Games

Over the years, Play’n Go has developed a range of very successful games - but none have seen the same levels of success as their critically-acclaimed Book of Dead. This 5-reel, 3-row slot takes place in ancient Egypt, and during the bonus round, players can win up to 5,000X their stake thanks to special expanding symbols.

Reactoonz is another highly-successful video slot from Play’n Go - utilising their recharge mechanic - and matching 15 pink symbols during the base game can award payouts of more than 1,500X!

Other popular games from Play’n Go include Legacy of Dead, Rich Wilde and the Tome of Madness, Rise of Merlin, The Sword and the Grail, Hotel Yeti-Way, Moon Princess, Rise of Olympus, Fire Joker, and 7 Sins.

Innovative Features

Play’n Go developed a cluster mechanic that can be found in many of their most popular video slots like Wild Frames and Reactoonz. Here, wins are formed when you land five or more matching symbols in a cluster - rather than on an active payline - and these games unlock special bonuses and features when you collect enough symbols.

In an attempt to compete with the Megaways mechanic, Play’n Go developed Dynamic Pathways. This adds extra rows (ways) to some of their games during the bonus round. Coils of Cash is one of their top games to utilise this innovative feature, and extra ways are found when landing a symbol underneath a matching symbol; the bottom symbol then “splits” into two, doubling the number of ways for that reel.

Pragmatic Play

Pragmatic Play is one of the newest game developers to enter the online gambling world - established in 2015. Despite their young age, they’ve grown exponentially. Today, they’re one of the most prominent game developers in the iGaming industry, with a large portfolio of mobile and crypto-friendly casino table games, video slots, and live dealer games.

Pragmatic Play is licensed in over 20 jurisdictions, including the UK, Malta, and Gibraltar, and their games are available at thousands of different online casinos. All of their casino games come in 31 different languages, and online casinos can choose whether to use fiat currencies or cryptocurrencies.

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Pragmatic Play’s Top Games

Pragmatic Play is known for ultra-high-variance games like Madame Destiny and Peking Luck - both of which offer players the chance to win more than 100,000X their stake!

However, in terms of their most played games, Big Bass Bonanza is likely one of the top. Featuring a mechanic similar to that of the iconic Fishin’ Frenzy, Big Bass Bonanza has a unique twist; each time the collecting fisherman symbol lands, you progress along a metre. After collecting enough of the fisherman symbols, you’ll be awarded another 10 free spins - although this time, there’s a 2X multiplier attached to all wins!

The Dog House is another really successful video slot from Pragmatic Play. The bonus round awards up to 27 free spins, and during the free spins, sticky wild multipliers can land. This can multiply your wins up to 27X - and all sticky wilds lock in place for the duration of the free spins bonus round.

Other popular slots from Pragmatic Play include Gates of Olympus, The Dog House Megaways, Wolf Gold, Floating Dragon, Wild West Gold Megaways, and Gems Bonanza.

Innovative Features

Pragmatic Play’s games are well-known for their innovative features. The game developer is also known for its branded games - and in 2020, they released their first branded video slot, Peaky Blinders. The game developer also purchased the rights to use BTG’s Megaways mechanic. They’ve since used this mechanic in many of their releases, including The Dog House Megaways and Big Bass Bonanza Megaways.

The game developer started operating its own live dealer casino two years ago. While they’re not as big as the likes of Evolution Gaming, Pragmatic’s live iGaming products can be found at a handful of reputable online casinos - and the number of sites offering their live dealer games continues to increase.

Red Tiger Gaming

Red Tiger Gaming is another young game developer; they launched eight years ago in 2014. While they aren’t as big as some of the other game developers we’ve looked at on this page, Red Tiger Gaming is a leading figurehead in the iGaming industry, and their games can be found at thousands of online casinos.

Today, the provider offers more than 250 casino games - most of which are video slots - and they’ve recently partnered up with other game studios like BTG, allowing them to use different game mechanics and features.

Red Tiger’s Top Games

Rainbow Jackpots was one of the game developer’s first games to see mainstream success - and it utilises their unique “randomly triggered base game feature” mechanic. During the base game, the Irish leprechaun can appear and add wilds to the reel, award a winning spin - as well as triggering either of the two bonuses and features. A number of the software provider’s other games followed the same format, including Dragon’s Luck, and Lucky Halloween.

Other popular games from the provider include Gonzo’s Quest Megaways, Dynamite Riches, Laser Fruits, Gems Gone Wild, Mystery Reels, and Reel King Megaways.

Innovative Features

Red Tiger Gaming were pioneers in the daily drop jackpots technology - and many other game developers, including Playtech now use a similar mechanic in their games. If you play a “Must Drop Daily Jackpot” game from Red Tiger, there will be three progressive jackpots - one of which must be won on the same day. There’s also a larger, standard progressive jackpot which continues to grow until a player hits the combination required to win it 

Best Slot Sites 2024

Now you've ready about the best online slot game providers in the UK, how about trying some of them out? Finding a safe and reliable online casino shouldn't be too hard. However, we do understand that sometimes it can be difficult to know which new slot site to choose. We have hand-picked some features and new slot sites below to help you out. These slot sites are proven casino operators that are fully licensed and have a glowing reputation for providing a safe and entertaining casino experience. You will find plenty of new games and slots from the aforementioned slot providers - and a whole lot more!

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