With the constantly growing popularity of online slots, the production of new games is at an all-time high, so here are the 5 best online slot developers.

Top 5 Online Slot Developers

Slots have been the top choice for gamblers at any online casino around the globe for quite some time now, and the high demand encourages slot developers to continually come up with new, exciting slots that will provide players with thrilling gaming experience. The popularity of online slots is constantly growing, and the list of slots is getting larger, so we decided to make things easier for you and create a list of the top 5 online slot developers that made some of the most well-known online slots, such as Book of Dead Slot UK.

Play’n GO

Being the developer of the world’s number one online slot says a lot about the reputation of Play’n GO. What started as a small team in an office in Sweden, today is known as one of the most respected suppliers of online slots in the casino industry.

Play’n GO’s portfolio is something that not many other slot developers can match. The company is home to almost 300 unique online slot games that provide excitement to casino players in more than 30 countries over the world. Play‘n GO was one of the first slot developers to embrace the popularity of mobile gaming and successfully managed to become one of the most admirable slot developers in the online gaming industry. 


PlayTech is considered one of the world’s largest online gambling software suppliers. The company provides gaming solutions created by cutting-edge technology and delivers a reliable gameplay experience on any platform and any device. 

Founded in 1999 in Estonia by different entrepreneurs from the casino and software engineering industry, PlayTech has developed a plethora of exciting online slots that can be found at some of the most highly-reputable licensed casinos all over the world. The company’s portfolio includes over 500 different titles developed by utilizing some of the most state-of-the-art software solutions.


There is no over-exaggeration when saying that a large portion of the games offered by the most prominent online casinos in the world is developed by Micrograming. 

The company was founded in 1994, and today is licensed in the UK, Malta, Gibraltar, and other major online gaming markets. Microgaming is home to some of the most iconic online slots such as Mega Moolah, Thunderstruck, and Immortal Romance, and is powering some of the biggest online casino operators in the world. According to Wikipedia, one of Microgaming’s progressive slot games holds the record for the largest online casino payout to date.


Founded in 1996, NetEnt has been one of the pioneers of the digital entertainment industry. Utilizing advanced software technologies and constantly coming up with fresh ideas, NetEnt is driving the online gaming market forward one digital casino solution at a time. The company has a portfolio of over 200 exciting games and over 200 online casino clients all over the globe. 

According to their website, NetEnt’s systems handled almost 60 billion gaming transactions in 2019 which clearly illustrates the importance of this online slot developer in the global gaming market. NetEnt-developed online slots can be found at any licensed online casino anywhere in the world, and millions of people enjoy them every day. 


With 1.8 billion euros in revenue in 2021 and over 21,000 employees around the world, Novomatic is one of the leaders in the industry. The company offers a wide range of well-known video slot classics with engaging gameplay, eye-catching graphics, and exciting sounds. Novomatic’s portfolio contains some of the most widely-recognized online slots, such as Dazzling Stars, Flames of Glory, Sizzling Hot, and many others. 

The company heavily focuses on research and development, and constantly works on providing new, advanced gaming solutions to numerous online casinos in regulated markets.