Online Slots Software Developers

Ever wondered who creates the slots for online casinos? Most online casinos rely on slot software developers to provide engaging and innovative online slot games. 

These casino software providers develop slot games for both online and land-based casinos. With their team of engineers, software developers, and graphic designers, to mention a few, these providers spend countless hours creating casino games to make your gaming experience a breeze.

Many developers have made slot machines and online slots for decades, while some are just starting to make their mark. However, the number of companies that make only online casino games has recently increased dramatically. 

What is an Online Slots Developer?

An online slots developer is typically an independent company who creates, produces and supplies online slot games for an online casino. 

They then establish deals with online casino brands that will host the games on their brand websites. The developer will then usually take a certain percentage of the cut. 

Numerous online casino software providers are emerging every day, and the number is constantly growing, but here at Slots UK, we are only interested in the best of the best. 

Slot Software Developers on Slots UK

There are many types of software providers for slot machines and online slots. One thing they have in common is that they are fair and are licensed by the United Kingdom Gambling Commission (UKGC).

The list below contains all the slots software developers you can find on SlotsUK:

Blueprint Gaming Eyecon Gaming Genii
Leander Microgaming NetEnt
NextGen Gaming Playson Playtech
Pragmatic Play Red Tiger Gaming Tom Horn Gaming
Yggdrasil Gaming

Best Slots UK Online Casino Software Providers

At Slots UK, we only operate with the best online casino slot providers based on the kind of slot games they create, bonus features, and jackpots. 

Blueprint Gaming

Blueprint Gaming is one of the leading UK online casino software developers and has spread its roots across the globe. Most Blueprint Gaming's video slots become hits and appeal to most online gamblers. 

Blueprint Gaming was founded in 2001, and though they initially started off providing software for land-based slot machines, they have since focused on developing software for online casino operators.

Their diverse portfolio consists of classic fruit slots, slots with progressive jackpots, slingo slots, megaways slots and lots more.

Eyecon Gaming

Eyecon Gaming was founded in 1997 and has been making waves since. This provider is best known for its 3D graphics and in-game bonuses. Their slots are found in both land-based and online casinos. 

They also have these nifty game tournaments known as the Megastar Tournaments. All of their online slots can be added to the Megastar Tournaments, and the frequency of which players can play it is adjustable.  

Lastly, Eyecon Gaming optimised all of its slots to be playable on all mobile devices to enjoy your favourite slot games anywhere. 


Founded in 1994, Microgaming is one of the oldest online casino software developers for slot games. It's most famous for its Mega Moolah progressive jackpots, where slot gamers could potentially win massive cash prizes, and its branded slots such as Game of Thrones.

Microgaming has over 1,500 slots in its catalogue and releases at least one slot game monthly. That helps them maintain their status as the best slot game software provider in the casino world.


There's probably not a single online and land-based casino that does not have NetEnt slots. As a result, this giant slots developer has rightly earned its name as one of the best in the game.

It is highly popular, creates visually pleasing and advanced slots, and the themes used in their slot games are modern and immersive. 


NextGen is short for Next Generation, and this developer has lived up to its name. Since 1999, they have been pushing the bounds of gaming software development by creating slots with bonus features and symbols that have never been seen before. 

Since 2011, they have been part of the NYX Interactive and Scientific Games, which now operates as SG Digital, and is still creating fantastic online slots.


Yggdrasil has been around less than a decade, and it has made its mark amongst veterans and influential software providers. Their animations and high definition graphics are why Yggdrasil is excelling. 

Yggdrasil's creativity when it comes to game features and graphics is unmatched. Their most popular slots include the Viking trilogy, which consists of Vikings Go Wild, Vikings Go Berserk, and Vikings Go To Hell. 

Pragmatic Play

Pragmatic Play is one of the industry's leading software gaming providers. Like Yggdrasil, they're pretty new to the iGaming industry compared to the other developers.

However, they have made a long list of successful and popular online slots that are considered giants of the iGaming industry.

Their extensive collection of engaging and HTML5 optimised slots include the Book of Vikings, 5 Lions Dance, and Buffalo King Megaways

Slots Software Developers FAQs

Which software providers are the most popular in the UK?

Microgaming, Eyecon, NetEnt, and Yggdrasil are some of the most popular software providers in the UK. But, to fully enjoy online gaming, we recommend you try all our listed providers.

Are all online casino software providers fair and safe?

Yes, all of the providers SlotsUK uses are safe and fair, as they're licensed and regulated by relevant regulatory bodies.

Which software developers make progressive jackpot slots?

Most software developers offer progressive jackpots, but the most popular is Microgaming with their Mega Moolah jackpots

Do these developers create free games?

Yes, these developers do create free online slots. However, this is not available for UK based gamers due to certain game restrictions. Luckily, all of our software developers at SlotsUK create slot games with free spin features!

*All values (Bet Levels, Maximum Win, etc.) mentioned in relation to the slot games are subject to change at any time.