There is a long list of online casino software companies on the market today, but here at we have chosen to review only the largest and the best makers of online casino games. The leading online gaming software developers are Microgaming, Playtech, NetEnt and Realtime Gaming.

Below you’ll find all top-rated casino software companies on our site. You can also see detailed reviews and find online casinos powered by the world’s best eGaming software providers.


There is no doubt, Microgaming is the world’s largest and the top online casino gaming software provider. Microgaming currently offers over 600 casino games and guarantees at least 2 new titles every month.

Net Entertainment

Net Entertainment, or simply NetEnt, is an Award winning software in the online casino industry. Online casinos that feature NetEnt games have become a top choice for gamblers, especially in 2013, 2014 and 2015!


Playtech has become one of the most renowned online gambling providers used by the biggest online casino brands in the world. Playtech casinos feature the complete suit of games from Marvel slots to progressive Baccarat.

Realtime Gaming

Established in 1998, Realtime Gaming, or simply RTG, online casino software has seen tremendous growth and expansion over the past fifteen years as RTG casinos are known for offering the fastest and most responsive games.


Novomatic is the Europe’s largest and most innovative group of companies in the global casino industry. Online gamblers are now able to enjoy exclusive Gaminator & Novoline slots as well as Skill games like Belote and Ski.


IGT is the world’s largest slot machine manufacturer and land-based casino provider. IGT software is most popular for its wide range of incredibly recognisable IGT Slots; games like Cleopatra, Wolf Run and many more.


WMS is one of the world’s oldest and largest companies in the casino and gaming industry. This software is well known for its incredibly popular Vegas Slots including Zeus, The Wizard of Oz, Bruce Lee and many more.


Aristocrat remains an industry leader when it comes to casino entertainment and Vegas slot machines. Aristocrat online casinos offer some of the most exciting Vegas Slots of all time, including 50 Lions, Miss Kitty and more.


Relative newcomers to the online slot development world, Thunderkick, have taken 2014 by storm. Their slots can be described as cutesy, quirky and pure fun. The founding members of Thunderkick are all hailing from NetEnt!

Play’n GO

Established in 2004, Play’n GO have created a large range of almost 70 high-quality games tailored to suit just about any market. All games by Play’n GO are instant play games and are available in 30 different languages.


Euro Games Technology, also known as EGT, is the largest land-based casino supplier in Eastern Europe and beyond. EGT has a wide spread of player favourite games such as 5 Dazzling Hot, 40 Super Hot, Rise of Ra and more.

NextGen Gaming

NextGen Gaming constantly strive with a single core question “”What makes a great game?”, and with this laser sharp focus at the core of their development it is no surprise they are excellent at producing great online casino games.

Betsoft Gaming

If you’re looking for innovation, excellence and top quality gaming then Betsoft is the perfect choice. Some of the most cutting edge and popular 3D online casino games have been created by Betsoft Gaming.


Cryptologic is one of the oldest software providers in the online gambling industry. Cryptologic was sold to Amaya Gaming in 2012 which is one of the largest service and products suppliers for top online casinos.


Exclusive casinos offer selections of unique games and/or features for players that are exclusively tailored for the casino. Here at Casino Tops Online, we bring together all the latest Exclusive Games and Unique Casinos!


There are two types of software use in gambling sites: online casinos tied up with a single software developer for games across one or more platforms and online casinos powered by a variety of different software developers under a range of different platforms.

We recommend you also check out the exclusive online casinos page where you’ll find not only casinos powered by a variety of different software providers, but also with unique players’ features. 

Note that the credibility of software companies reflects the overall quality of online casinos that work with these software providers. It is worth paying attention to the software providers of online casinos in order to feel safe playing for real money.