As many in the world know, there are leading companies in different niches, and gaming slots are no exception. Leadership in software for slots is awarded to those companies that have significant revenues, as in most areas.

The more a company is widespread, the more it earns. It means that the company’s slot machines are becoming more exciting and more generous. No need to worry about looking for games from leading software providers around the web as they are all compiled on Free Slots Hub has 2000+ collection of free slot machine games online with no download, no deposit, and for fun only. Most games offer players free modes, the ability to play with no registration, receive free spins, and win an attractive jackpot. Very often, games in the TOP or new ones have an instant play function, which implies the ability to play with no download. The free slots, from video slots to fruit machines, help to understand the system and prepare for a game for real money in the best slot machines. But which provider to choose to get the best experience from the game? All iGaming market leaders to be discussed in the following text to help you make the right choice.

Market Review: The Top Casino Software Providers

In the World statistics on gambling, you can see that about 26% of the population regularly play gambling. According to the research company H2 Gambling Capital, from 2009 to 2018, the global income of online gambling increased from €17 billion to €45 billion. By 2025 the online iGaming market is estimated at $102.97 billion.

Gambling is more developed in Macau and Australia, followed by the United States, Britain, and Canada. To some extent, Macau is a leading gambling shelter, and this is not a secret even for people who do not play gambling. For a long time, half of Macau’s revenue makes up from gambling alone. Still, the situation worsened in 2019 due to several different factors, not without the participation of a trade war between China and America.

Since 2019, in the gaming industry of the second world leader Australia, is also not very good. Some banks have banned gambling with credit cards, and the government is trying to insist on tightening control over the gambling business and has already implemented some functions. Advertising is controlled; casinos should report more about their activities. It is all in a country where, according to statistics, 80% of the population are players.

Although New Zealand is not among the top leaders in online casinos, it is also one of the countries where gambling is allowed. Most gaming sites will be licensed and regulated for thousands of miles.

The situation with online games in the USA for 2019 was controversial. At the beginning of the year, the Ministry of Justice could significantly affect the conditions for the provision of games on the Internet by publishing an opinion on the 2011 law, which stated that the law would only apply to sports betting. This opinion was challenged in court with a victory toward the New Hampshire State Lottery. Besides, during the trial, the situation did not affect the online gambling industry in any way, and its indicators soared.

The combination of innovation and regulation of gambling on the Internet helps Canada to be one of the leading regions for gaming in the world, unlike America. The Canadian betting industry brings in more than $ 15.5 billion a year, and the country’s jurisdiction has an important place in the world of online gambling.

Not very pleasant changes occurred in the UK, the maximum rate of 2 pounds, raising a question of the prohibition of gambling on the Internet with credit cards. Mandatory requirements for the identification of visitors to online casinos. Many operators ceased to exist or received profound losses. But, surprisingly, these changes did not interfere with Bet365’s revenue of £3 billion per year.

The overall picture of Europe for 2019 in the world of online casinos was not comforting. Italy issued only part of the licenses, Denmark set new limits on deposits, the Netherlands issued a new law on the control of online games and imposed fines on several providers. Still, Switzerland began launching new domestic networked casino sites, crowding out international operators.

In South Africa, as in Africa as such, the news about the gaming industry over the past year was not very joyful. Many operators incurred significant losses from various fines imposed by the state and refusal to renew the license.

Despite the general situation in the world of online gambling, many leading casinos still have high positions. These casinos cooperate only with leading software providers, which allows you to get the worthiest games.

There are enough suppliers in the casino software market, but we will discuss only the leading ones, such as Microgaming, Aristocrat, NetEnt, Playtech, and others. But first, let’s see what exactly makes a leading supplier – a leading one. Each developer has its uniqueness and advantages, but the most important thing for the market is for the game to be exciting. Here are a few more criteria by which the game stands out among the rest, and as a result, its provider:

  • Availability. The convenience of the gameplay and the ability to play on any device are important specifics in our time.
  • The visibility, musical accompaniment. Excellent graphics that are pleasing to the eye, and sometimes even mesmerizing and exciting music are considered the second important components.
  • Payouts. There are different variations of winnings and payouts, which helps to diversify the game process and cover the various preferences of the players. For example, some slots offer an impressive jackpot, other regular small wins.
  • Authenticity. Most people like to see originality, difference, and games are no exception.


Time-tested Australian largest software developer creates the best online slots that many players like. Aristocrat is based on the gaming market in Australia but is making progress in the United States. The developer creates online games based on existing successful ground-based slots, which helps to make the game accessible in the networked version. This approach gives confidence in the test of the game on the market because the online version is an exact copy.

The company’s revenue is growing, and over the past year, it has grown by a record value of 22.7%. Most of the growth was due to mergers, acquisitions, and, most important, the launch of new equipment. For example, providing a new vertical MarsX cabinet and launching new games for it. They were launched for existing Helix (+) cabinets.

The annual profit was $ 973.5 million before tax, while Aristocrat’s income-related expenses rose to $ 1.97 billion. In the future, continued growth and even more significant development in the United States are expected. The advantage of Aristocrat among other developers is that it creates online versions of already popular and proven games without any risk.

Top slots from Aristocrat:

  • Queen of the Nile I/II;
  • Big Red;
  • 5 Dragons;
  • Wild Panda.


Microgaming has over 25 years of experience in the gaming industry, winning the trust and appreciation of many casinos. Also, the company is one of the founders of the phenomenon of online games and is considered a pioneer. Their games are reliable, have incredible graphics, and are very popular among players.

More than 800 games released during the existence of the company. In almost all Microgaming products, you can find a convenient interface, a large number of bonuses and a high percentage of return. The variety of slots is impressive, and many players note the success of the progressive jackpot. The total amount of payments only with the onset of 2019 was 154 954 249 euros.

The company plans to release several new slot machines and add more than 100 publications to the content aggregation platform together with third-party developers in 2020. Microgaming is interested in combining online casinos with virtual reality and is already creating such games, although the company is already successful in casinos with a live dealer.

Top slots from Microgaming include:

  • Mega Moolah;
  • The Dark Knight;
  • Jurassic Park;
  • Thunderstruck I/II.


An Austrian developer with an impressive history and reputation has been manufacturing ground-based gaming machines throughout Europe since 1980. Currently, more than 200,000 slot machines are accrued in more than 50 countries, and the company’s annual turnover is more than 4 billion euros. Also, Novomatic is releasing online versions of its successful desktop slots.

The company boasts a multilingual interface with classic graphics, a significant percentage of the win. Creating new games, the developer does not forget about updates for existing ones. However, Novomatic can be called not particularly powerful innovative features and graphics.

The developer plans to maintain focus on further growth: «The primary goal is to safeguard and expand our position in our core markets, » says Mr. Neumann due to Novomatic latest press release.

Below you can see the top slots from Novomatic:

  • Lady’s Lucky Charm Deluxe;
  • Book of Ra;
  • Dolphin’s Pearl;
  • Sparta;
  • Gorilla.


NetEnt is a well-known Swedish online casino game development company since 1996. Thanks to various innovations and high-quality games, the company has gained an excellent reputation and received many awards. On the account, there are already more than 200 fantastic games and the LiveCasino section, which further expands their assortment. It is important to note that NetEnt makes great efforts to license its slots only in reliable online casinos.

The developer is attracted by games with an excellent modern design, user-friendly interface, attractive progressive jackpot, but most importantly, interesting features, including 3D. The LiveCasino section is set to receive new additions through collaboration with players. In the difficult period of online games in Europe, the company still received an increase in annual revenue of 1% for 2019. The increase was mainly due to the Red Tiger.

Top slots from NetEnt are the following:

  • Starburst;
  • Jumanji;
  • Gonzo’s Quest;
  • Twin Spin;
  • Guns’ n’Roses.


International Game Technology is one of the most respected and leading gaming companies in the world, mostly the United States. The company specializes in creating games for ground machines, for online casinos, but also operates in the lottery area, wired sports betting. IGT is developing new online slots and adapting online versions of ground-based gaming machines; for the latter, significant efforts are being made to get a real resemblance.

In 2019, the company received revenue of 4.79 billion dollars, which is 1% less compared to 2018 despite a significant increase in all domestic areas. IGT plans to improve NASPL lottery technology, innovate, and release new games.

Top slots from IGT include:

  • Cleopatra;
  • Da Vinci Diamonds;
  • Golden Goddess;
  • Black Widow;
  • Star Trek.


The Israeli gaming company Playtech, established in 1999, is almost the main competitor to Microgaming. At the same time, thanks to 3D games, it also competes with new generations of developers. Playtech revenues increased by 22% and amounted to 1.5 billion euros without taxes for the whole of 2019, which explains the rapid growth of the company’s shares. It is noteworthy that the developer works in many areas of online gambling and has significant success in each, unlike competing companies.

Playtech has been producing various online games, having more than 700 in the arsenal, although most of the resources are directed to online poker. A top-rated series of games on the Marvel Jackpot comics, there are also slots on famous films. Most games attract colorful graphics, jackpots, and appealing bonuses.

In 2020, the developer set himself the goal of further developing his live casino using more resources and investments. Live Slots allows multiple players to play the same game at the same time and gives the feeling of a game like in a live studio with a host leading the game.

Among top slots from Playtech you will find the following:

  • Hulk;
  • Iron Man 2/3;
  • King Kong;
  • Beach Life.