Online Casino Software

An online casino allows a player to play his favorite casino games from home. They also have loads of great bonuses to make the gaming experience even more fun. Graphics and animation, the interface, game selection, promotions, payment methods, and customer support all contribute towards this overall experience. At the core of an online casino is, of course, the software that powers it.

The software that powers an online casino is one of the most important things we consider when deciding to recommend an iGaming venue. The software determines the look and feel, the range of games, the features that the games come with, the random nature of the spin of a wheel or the dealing of a hand, the way the bonuses are tracked, the way the payment methods work, and much more.

In the early days, each casino was powered by one casino software provider alone. Innovations in networking and internet technology now mean it’s possible to have casinos that are powered by multiple software providers. You’ll find all the top casinos these days use a range of different game designers to give a varied selection of games, capable of appeasing all tastes.

The industry is booming and competition between software providers is stiff. More newcomers join the fray each year, bringing with them new ideas and possibilities. The result is a steep upward surge in the overall quality of the iGaming experience. The games are richer than ever before with innovators constantly pushing the boundaries with creative new titles and concepts. The resulting games are loaded with features barely imagined by the earliest designers in the industry

Given that most of the best online casinos these days rely on a basket of games selected from many different designers, the sheer number of casinos offering world class games makes choosing the right one a challenge.

On this page we list some of the top online casino software providers available. We only list those companies that:

  • Have been checked by our review team for fair gaming, security, and reliability
  • Are licensed in respected jurisdictions

Kinds of Online Casino Software Providers

There are loads of software providers today compared to the scant few that existed in the early days of the online casino industry. Microgaming was a pioneer, having set up shop back in 1994, and is still considered an industry leader. There are a number of others of all-but-household-names as well.

Categorizing software providers is not the easiest of tasks because most of them provide a similar range of games. One way of differentiating them is on the basis of the play mode they support. All the early casino software providers offered games in the download mode only. The improvement of Flash technology led to the emergence of the no download instant play mode,

These same providers now offered games in both these modes:

  • Download mode: You have to download the software to your computer to be able to launch the casino.
  • Instant play mode: You can play directly from a web browser in instant play mode. You don’t need to download software. Until recently the selection of games available for instant play was limited. This is not the case today, however.

Given the clear preference among players, many casino software providers are now offering their games in the instant play mode only. This is the case with NetEnt, one of the largest names in the online gambling industry.

Live dealer casinos, a more recent development, have become a very popular way to gamble online. They feature real dealers with whom you can interact through live chat and video. Most of the top software providers offer live dealer casino games these days too.

The steadily rising popularity of the live dealer casino games has led to a new breed of specialist software providers too. Some offer only live dealer games. Good examples of such providers are Evolution Gaming and Extreme Live Gaming.

There are other specialist providers in the overall casino gaming scene too. For instance, Quickspin and Habanero are two providers that only develop slots. Meanwhile, BetSoft Gaming is a provider specializing in cinematic quality 3D slots. They are widely acknowledged as the first company to do so. They do, however, offer more traditional online casino games too.

Another technology advance that has shaken up the casino industry in recent years is the mobile phone. Casino software designers were quick to see the relevance of handheld smart devices to the casino industry and today, almost all create their products in a way that is suitable for use on a mobile phone or tablet.

Casino Software Testing and Certification

The biggest concerns for online casino users, right from the time the first online casino was launched, have always been safety, reliability, and security. That’s not the only challenge though. Software providers need to deliver games that not only look great – adaptations of land-based casino games need to look as good as their real-world counterparts at least – and have great features whilst still being fair and reliable. This is where testing and certification of software comes in.

All software providers that we recommend put their games and software through a comprehensive testing and audit process. This is done to ensure that the games consistently generate random results and are therefore fair. Regular and rigorous auditing of the games ensures that the games consistently deliver on the payout percentages that the casinos advertise. To ensure complete fairness the testing and auditing of casino software is done by independent and neutral third party agencies.

Top casino software audit companies include:

  • iTech Labs
  • Technical Systems Testing (TST)
  • Gaming Labs International
  • NMi

These organizations put the software and games through stringent checks across multiple parameters. We’ve listed some of the elements they test for below:

  • 100% randomization in all game outcomes, be it the hands dealt, balls rolled, dice thrown, or reels spun.
  • Accuracy in return-to-player (RTP) values and payout percentages.
  • Testing of game logs and interruption protocols.

Once the testing is done the testing agency publishes a report for the casino highlighting the protocols followed and the outcomes arrived at. Successful testing allows the casino to display a certificate with the logo of the agency on its homepage, and clicking on the certification link displays the certificate. You can usually cross reference any casinos claims with any auditing or licencing agencies to make sure that they offer fair games and verified software too.

Online Gambling Licensing Jurisdictions

Reputable casino operators and software providers also boast licences from casino-industry-specific licensing jurisdictions. Licensing is required to be in compliance with the gambling legislation of various jurisdictions.

Some of the most common licensing agencies from around the world include:

  • The United Kingdom (United Kingdom Gambling Commission)
  • Malta (Malta Gaming Authority)
  • Gibraltar (Government of Gibraltar and the Gibraltar Gambling Commissioner)
  • Kahnawake (Kahnawake Gaming Commission)
  • Curacao (eGaming Curacao and the Government of Curacao)
  • Alderney (Alderney Gambling Control Commission)
  • Antigua and Barbuda
  • Isle of Man
  • Cyprus
  • Costa Rica

Check whether the casino displays its licensing information and where it is licensed as this gives a guarantee of safety, reliability, and trust. We do this for all our recommendations. However, you can check our own listings yourself by finding out which licencing agency your casino claims to operate under and visit that agencies database of licence holders.

Premier Online Casino Software Firms

With the online casino market continuing to boom with new innovations like mobile play, it’s only natural that the number of software providers serving the lucrative industry grows. There are many top-rated online casino software providers today.

Below, we briefly discuss the most respected software providers building games today:


Microgaming is a pioneer of the online casino software industry. Established in 1994, it has served up great games ever since. It remains one of the undisputed leaders of the casino software provider pack.

The figures taken from the company’s lengthy existence highlight its continuing presence in a rapidly evolving industry:

  • 850+ online casino games
  • 350+ mobile casino games
  • 40+ progressive jackpots
  • 120+ accredited casinos
  • Over €848 in progressive jackpot payouts
  • World record for highest progressive jackpot payout of €17,879,645.12

Microgaming initially provided its games in download mode only. The arrival of Flash technology led it to create games in both download and instant play modes. Like their peers, Microgaming also offers their games on mobile operating systems too, with all games developed in HTML5 for easy browser-based access on a range of devices.

Microgaming offers an impressive range of games. Each features exciting graphics, lush animations, and a heap of great interactive features. Its progressive jackpot network is among the biggest in the world – there are over 40 games in total – and it has paid out a staggering €848 million in prizes to date. Microgaming also holds the world record officially for the highest progressive jackpot payout of €17.85 million.

The games available from Microgaming include slots, blackjack, roulette, craps, baccarat, other card and table games, video poker, scratch cards, speciality games, live dealer games, progressive jackpots, bingo, a sportsbook, and also land-based casino games. Today, it delivers more than 350 of its games on the mobile platform. You can access them from both Android and iOS devices.

Microgaming is licensed and regulated by the United Kingdom Gambling Commission (UKGC).


Playtech is another veteran of the online casino software industry and one of the leaders in the field. Launched in 1999, it was headquartered in Estonia. Today it is the largest iGaming supplier to publicly trade on the London Stock Exchange.

Playtech boasts more than 600 exciting games available for play in both play money or real money mode. The games available include slots; table and card games like roulette, craps, blackjack, baccarat, and others; video poker; scratch cards; bingo; lottery games; a sportsbook; poker; virtual sports; live dealer games; and progressive jackpot slots.

The huge company has been able to significantly increase its game range largely thanks to a skilled in-house development team, along with collaborations with and acquisitions of other iGaming firms. These include:

  • Quickspin
  • Ash Gaming
  • Sunfox Games
  • Psiclone Games
  • Playtech Vikings
  • Playtech Origins
  • Virtue Fusion
  • Geneity Limited
  • Eyecon
  • GECO Gaming

Successful collaborations with some of the biggest studios in Hollywood and also big names from the world of comic books has enabled Playtech to release its own unique range of branded slots. Their range includes Marvel, DC Comics, Warner Bros, and other huge names.


NetEnt is another pioneer in the online casino software sector. It was launched in Sweden in 1996. It has continued to shine over its two decades and more creating games for the rapidly evolving online casino industry. At least one of two of the company’s innovative games are sure to be in ever online casino aficionado’s shortlist of favourites.

NetEnt boasts over 200 exciting games with loads of innovative features. Some of its best offerings are among its range of slots. These offer cutting-edge graphics and creative special features, making them firm favorites among many players.

More than 170 prominent casino operators from across the world use NetEnt software to power their casinos today. The company has offices in Sweden, Malta, Ukraine, Gibraltar, USA, and Poland today.

The games available from NetEnt include slots, blackjack, roulette, other table and card games, video poker, progressive jackpots, live dealer games, speciality games, and others.

NetEnt has subdivisions for both live dealer games, in the form of its NetEnt Live platform, and mobile casino games, developed on the NetEnt TouchTM platform.

NetEnt is certified by eCOGRA and is licensed and regulated by both the United Kingdom Gambling Commission (UKGC) and the Malta Gaming Authority (MGA).

Rival Gaming

Rival Gaming launched operations a little over a decade ago in 2006. It is headquartered in the USA and is known extensively for its high-voltage I-slots.

Rival Gaming offers its software in both download and instant play modes. It is also one the few providers that cater to the US market.

There are over 215 exciting games from Rival for players to choose from. The games include slots, blackjack, roulette, craps, baccarat, other table and card games, video poker, speciality games, and also progressive jackpot slots. The slots available include 3-reel classic slots, 5-reel video slots, and also the fantastic I-Slots.

All games from Rival come with high quality graphics and animations. The games are also high on inbuilt special features. I-Slots, for instance, each has its own unique story. These are highly engaging and interactive iGaming experiences and each game does a great job of drawing players right into the narrative. The story develops as you play more, and this results in a corresponding change in the graphics and animations as well.


Real Time Gaming (RTG) is another online casino software provider that has a well-deserved reputation for quality in the iGaming industry. Another old hand, the company was launched in Atlanta in the USA in 1998, and has an extensive range of games for its players, including the cool Real Series slots.

One of the things that RTG has stood out for is its acceptance of players from the USA even after the passage of the Unlawful Internet Gambling Enforcement Act in that country in 2006. It’s quite amazing really, particularly given that many of major software providers pulled out of that lucrative market because of the harsh legislation.

RTG has a cache of over 300 high powered games that you can access from both Windows PCs and Macs. The games are available in both download and instant play modes, with the download mode offering the full range of games. Games available include slots – classic as well as video slots, blackjack, roulette, craps, baccarat, video poker, speciality games, live dealer games, and progressive jackpots. Some of the jackpots offer million-dollar payouts.