What is Online Casino Software?

“Casino software” describes the various platforms and technologies on which online casino games are played. This can include:

  • How the games look and feel
  • The technology hosting the games (cloud-based, downloaded software, mobile app)
  • Game fairness, RTP and payouts
  • Stylistic elements (bonuses, graphic, gameplay)
  • Types of games (slots, table games, live dealer games etc)

A single online casino can incorporate software from dozens of different game developers, leading to a multitude of gaming experiences within a single platform. For example, Microgaming and NetEnt are both famous and successful game developers—but the playing experience is vastly different for each.

Online casino software is arguably the most crucial differentiator between top-class and bottom-rung casinos.

The Best UK Casinos Not On Gamstop


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One of our favourite casinos not on GamStop released in 2022! Read our full Damslots review and you’ll see why!

mystake casino review

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MyStake Casino is one of the most engaging, high-quality and moreish non-GamStop casinos we’ve reviewed this year. Every important box is ticked with authority, creating an online gaming experience like no other in 2022!


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Slots Dreamer casino is offering one of the best non-GamStop casino experiences of 2022. This casino is beyond your wildest dreams, and it’s only just getting started!

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Truly unique among its competitors, Agent No Wager Casino is a non-Gamstop casino like no other. As the name suggests, the casino’s unique selling point is that it offers just 1x wagering requirements on all of its bonuses, meaning you can withdraw them as real cash even faster. On top of that, the site offers a great selection of games and a dedicated UK customer support team.

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Kaboom Slots is one of those casinos that just ticks every box. Despite being less than a year old, it already has a comprehensive offer that’s attractive to virtually all players. From bonuses to customer support, there are no reasons not to play with Kaboom Slots Casino.

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24 Monaco focuses entirely on the player experience. The casino is designed to meet the player’s gaming needs (thousands of games from respected providers) and their financial needs (enormous and ongoing bonuses) with a world-class platform backing it all up. 24 Monaco represents the future of online casinos not on GamStop.

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Paradise 8 is a longstanding casino that was first established in 2005. They were a pioneer in adopting Bitcoin for online casino and remain one of the most popular Bitcoin casinos today. In terms of strengths, players rate Paradise 8’s bonuses and promotions extremely highly—it’s a good casino and one we recommend.

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Da Vinci’s Gold Casino is well-known as a Bitcoin casino. It offers players a wide range of bonuses (which are by far the biggest attraction) as well as a concise selection of games and payment options. DaVinci’s is a good online casino and we recommend any players who own Bitcoins to check them out.

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Win Diggers is one of the veteran online casinos not on GamStop. With an action-packed roster of games and a roasting hot welcome bonuses, it’s no surprise that they’ve been a crowd favourite for 4 straight years.

UK Software Casinos Without GamStop

When looking for new online casinos not on GamStop, it’s paramount that they have high-quality casino software—if not, players will be unable to enjoy their favourite games.

Since every developer builds their games in a unique way, there are therefore consistent and notable differences between developers. So, let’s take a look at some of the best game providers at non-GamStop online casinos.



One of the oldest casino game providers in the world, Microgaming casino sites are highly coveted by players. Microgaming is known for producing games which are exceptionally volatile and highly-paying. Its progressive jackpot game Mega Moolah is the highest-paying online casino game in history, unleashing a jackpot of over €19 million in 2021.

However, Microgaming casino sites don’t stock games by other providers. Players may also have to download desktop software or mobile apps to play Microgaming games, but thankfully most Microgaming casino sites now support in-browser play.

The only downside is that Microgaming casino games are usually quite basic in terms of visuals, interactiveness and bonus rounds.


NetEnt games are probably the most popular in the industry. Famous for blockbuster graphics, NetEnt slots are often closer to video games than classic slots. NetEnt online casinos allow rapid in-browser play on any device. Even better, most of their games can be played for free in demo mode—something that other casinos not on GamStop might not offer.

While best-known for slots, NetEnt casino games also include progressive jackpots, RNG table games and an incredibly immersive live dealer suite. The Swedish giant’s games are innovative, beautiful and, we’re happy to report, regularly available at non-GamStop casinos!


While they sometimes fly under the radar, Novomatic slots are some of the biggest in the entire industry! For example, Book of Ra is played at most of the world’s online casinos, reeling in thousands of players every single day. The game loads quickly and offers a max return of 5,000x stake and has a 30% hit frequency.

Other slots at Novomatic online casinos are Sizzling Hot Deluxe, Dolphin’s Pearl, and Lucky Lady’s Charm. While none of these slots offer Pixar-level graphics or storylines, they provide something even more valuable: big wins. You’ll find Novomatic slots at most casinos not on GamStop.


Real Time Gaming

Real Time Gaming was founded in 1998 in Atlanta, and has become one of the biggest American online gaming brands—despite moving its operations to Costa Rica. RTG online casinos are best known for their fun array of online slots. Games like Cleopatra’s Gold, Casino War, Aztec Millions and Mayan Queen may not have the same brilliance as NetEnt slots, but they pay generously and attract millions of players around the world.

Most games are available for instant play, though some RTG casinos still use downloadable desktop software.



Betsoft casinos are a perennial hit among online casino players, yet despite that popularity, the developer only has about 200 games to its name—Microgaming released half that number in 2021 alone!

You’ll recognise Betsoft online casino games by their old-fashioned graphics and animations. Unlike some modern providers, Betsoft doesn’t try to be innovative—it just produces solid, enjoyable games for its loyal player base. Check out “The Slotfather” series or Greedy Goblins to see Betsoft’s best work!

Evolution Gaming

Evolution Gaming

Evolution Gaming casinos have been the runaway kings of live dealer games for over a decade. There is no one in the industry that can match the diversity of games (blackjack, roulette, baccarat, sic bo, poker variations, bingo, and much more) or the quality of execution.

Evolution Gaming online casino software is incredibly polished. It’s easy to navigate and the design is perfectly modern. Most importantly, the company employs over 3,000 professional dealers—by far the most charming, experienced and entertaining in the business. Players can even enjoy 15+ languages at more than 700 tables worldwide.

All games available in-browser for instant play.

Rival Gaming

Rival Gaming

Founded in 2005, Rival Gaming now boasts over 250 games that can be played on any device. Their famous i-Slots are available in many Rival Gaming casinos—these trademarked games feature an interactive storyline that sets them apart from regular slots.

Rival Gaming online casinos find a nice balance between building sufficiently complex and attractive games, without over-engineering and overwhelming players.

Pragmatic Play

Pragmatic Play

Pragmatic Play is one of the more adventurous online casino game providers. Their goal is not simply to create fun games—it’s to dazzle and delight players with groundbreaking graphics, innovative game modes and high-volatility payouts.

While Pragmatic Play casinos are best-known for Wolf Gold and the John Hunter video slots, a small number also supply RNG and live dealer table games! You can tell a true Pragmatic Play casino by the inclusion of live Bonanza Candyland—the live dealer adaptation of their iconic video slot!



While they sometimes fly under the radar, Thunderkick online casinos punch far above their weight. An independent Swedish game developer with bold ideas, Thunderkick has risen to prominence thanks to its superbly entertaining games, built on its absurdly high-quality casino software.

The casino is well-known for creating games that are fair, with generous and extremely consistent payouts—something that veteran online casino players do not take for granted. The developer’s Beat the Beast series is particularly popular, with nearly a dozen variations.

Casinos Not Blocked by GamStop Software

If you’re new to the world of non-GamStop online casinos, we’ve got great news: there are dozens to choose from! These are all safe, high-quality online casinos which are not blocked by GamStop software. We have reviewed all the best, brightest and newest casinos and you can find our favourites right here:

Games not on GamStop

You might be worrying that some of your favourite games will be prohibited by GamStop—we’re happy to report that this is very unlikely!

The game providers we’ve described above are only some of the many, many developers whose games are available on non-GamStop casinos. And while it’s true that, for example, a NetEnt online casino might not stock all NetEnt games, there are no specific games which are restricted by GamStop.


The software at today’s non-GamStop casinos is every bit as polished and high-quality as anywhere else. From Microgaming casino sites to those hosting 30 or 40+ game developers, we are enjoying a golden era in online gaming.

It used to be that every casino required downloadable software that was clunky, slow, and prone to disconnection. Now we have non-GamStop casinos with thousands of world-class games, hosted on slick and high-performance platforms that are accessible on any device, on any operating system.

We are entering a real golden age of online casino gaming!