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Guide to Slots Software Creators

Online slots are created by specialist software houses, which then license them out to casinos.

This detailed guide covers all of the slot software creators, giving you an overview of their games and what makes them different from the rest. These are in approximate size order, with the huge international software houses at the top and specialist outfits lower down.

There are some amazing slot games around, and many of the smaller producers are creating the biggest innovations. Make sure you check out as many as you can! I have marked those software houses that license slots to US casinos with a flag.

Slots Software Makers

PlayTech Logo#1 – PlayTech

Started in 1999, PlayTech are a true giant of the gambling software world. They power many of the biggest brands, and cover casino, poker and sports betting too. Their slots range is vast. The flagship titles are the ‘Marvel’ range, which tie in with the movies and comic books. Games include the Incredible Hulk, Spiderman and the Avengers. These have a linked jackpot, which is shared between all PlayTech casinos. Other noteworthy titles include Monty Python’s Spamalot which has a jackpot regularly over the $2 million mark.

PlayTech slots are available via download or using responsive browser-based technology. Some casinos also have dedicated apps for iPhone and Android devices – though these tend to have a limited selection of games. There are more than 300 slots to choose from.

Read more on PlayTech Slots here. You can check out the range of games at the top rated BGO casino.

MicroGaming Logo#2 – MicroGaming

This software house made the first internet casino (back in 1994) and has remained one of the biggest players in the industry for more than 20 years. They have the single biggest list of slot titles, with more than 450 (and counting) games. While many of these will be showing their age already, there are still at least 200 which are modern enough to be impressive. The best known game is the progressive jackpot ‘Mega Moolah’, this regularly pays out multi-million prizes. ThunderStruck 2 is a hugely popular non-progressive.

MicroGaming’s ‘Viper’ software is multi-device compatible (browser based), and this software powers many of the biggest brand names around – I like the 32Red Casino, where you can get £32 in bonuses for every £20 you deposit.

Read more on MicroGaming Slots Games here.

#3 – Net Entertainment

NetEnt LogoThis Swedish slot software maker has a long history pre-dating the internet. Their games are amazing, with an attention to detail and game-play which stands out from the other producers. NetEnt games work exclusively in your browser, which means they are gaining a lot of traction at the moment as a new generation of casinos which do not require downloads hit the big time. This also allows NetEnt titles to be added to casinos which use (for example) PlayTech as their main platform.

A famous progressive from Net Entertainment holds the current record for the biggest online jackpot win (almost EUR20 million). Mega Riches is not the most modern game, though that big prize pool keeps people coming back for more. There are some innovative games including Jack and the Beanstalk, EggOMatic and Big Bad Wolf which are really moving the slots genre forward. Look out for games with the ‘Cascading Wins’ feature too.

You can read more about NetEnt slots here (including some more recommendations for titles). If you’d like to check them out, then the award-winning Mr Green Casino is the place to head.

#4 – IGT

IGT LogoInternational Games Technology are slots powerhouse. They are innovators, and have created many of the breakthroughs which we take for granted in slot games these days – pioneering the 5 reel video slots and progressive jackpots. These titles are now coming online after the purchase of rival Wagerworks. IGT has skipped the legacy download technology, and jumped straight to the in-browser responsive tech which works with both static and mobile devices.

Many of the best slots online come from IGT, and when you see their live games pipeline, it will be clear that even bigger things are coming from this slots software giant. Famous games include Monopoly, The Dark Knight Rises and the Battlestar Galactica range.

Responsive technology means you are more likely to find these games as extras on top of another platform than as a stand-along IGT casino. You’ll find these games at, and can read about this company in my detailed page covering IGT slots.

RTG Logo#5 – Real Time Gaming

US FriendlyReal Time Gaming are the biggest slots software provider offering games to US friendly casinos. Licensed in the Netherlands Antilles (Caribbean), RTG take the stance that it is up to the individual casino which country they offer games too. This company was started in the US back in 2006 and is best known for their ‘Real Series’ games. The big feature of these are ‘random progressive jackpots’ which are triggered independently of what appears on the reels. These are often pooled between RTG casinos, and can reach 7 figures (there are 4 levels). The slots are colorful and have entertaining themes, though they are not as advanced as the games from some of the bigger international companies. Notable games include Mid-Life Crisis and Shopping Spree.

You can read more about RTG here, or head over to the biggest US friendly casino and try out the games at

BetSoft Logo#6 – BetSoft

US FriendlyThis software creator produce amazing games. The 3D rendering on slots such as 2 Million BC and Mr. Vegas is absolutely amazing. Things happen in front of and on the reels, and the bonus / break-out games are like Pixar movies. There is a serious side, including progressive jackpots and the potential for some huge wins.

BetSoft also create a dedicated mobile phone compatible range known as ‘ToGo’. These are adapted for the smaller screens, and keep the wonderful graphics and game-play. ‘Must See’ is an overused term in general – however for BetSoft you really do have to see these games to understand how different they are from mainstream slots.

You can try them out over at – my full BetSoft Slots overview explains more of what to expect.

Rival Gaming Logo#7 – Rival Gaming

US FriendlyRival Gaming license their titles to US friendly casinos. This company is best known for their ‘iSlots’ range – which includes progressive storyline bonus features. Innovative examples include the hybrid of soap opera and slot in ‘As Reels Turn’, where you unlock new scenes (bonus rounds) as you play. ‘The Back 9’ lets you play holes of golf as you make your way back to the club house.

These are entertaining games, and for me are a lot better than the more popular Real Time Gaming titles. In addition to the iSlots range, you’ll find Video Slots and colorful 3-reel slots too. Progressive jackpots are not a big feature of this software house, who power a lot of smaller casino outfits.

Read more about the Rival Gaming Slots range in this article.

Cryptologic Logo#8 Cryptologic

One of the first casino software makers online (back in 1996), Cryptologic were huge up until the 2006 UIGEA. It was not until 2012, when gambling giant Amaya purchased this brand that things really began to turn around. WagerLogic, which ran their casinos, was sold in 2013 and the focus is now back on creating top-rated slots software.

This was been a success, and I have to admit the progress in Cryptologic slots recently has surprised me in a positive way. The new Superman Slot and Gulliver’s Travels both include new features and top rated design. You’ll find a new ‘Flip Out’ feature, where wins flip to reveal new symbols. There is also a ‘Mega Lines’ idea, where you go from 25 lines to 40 and then 243 ways.

Find out more in this detailed review of Cryptologic Slots Software

#9 – Aristocrat

Aristocrat LogoAs far as live slots are concerned, Aristocrat is 2nd worldwide, with only IGT bigger. They dominate their native Australia (where laws prevent them offering their games online) and have made big inroads into Vegas too.

There are a lot of titles online, however the best live games have yet to make the transition. This leaves some solid, though unremarkable, titles to choose from at online casinos. These remind me of RTG, the games are fine – as long as you do not expect too many features or animations / graphics.

It was only recently that Aristocrat partnered with NYZ Interactive to move their portfolio online. I am hopeful that we will see some of their amazing live titles move over in the very near future.

Read this guide for more on Aristocrat Slots.

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