Online casinos succeed or fail partly on the strength of the games they provide. Because of this, they need to offer a great selection of exciting games to encourage their customers to keep playing with them. 

Most casinos don’t make their own games, although Tombola is a rare exception. Most have partnerships with game providers, who create slots and table games, bingo, lotto, and live casino games. 

You can find out more about how online casino software works here. 

In this article, we’ll look at some of the best providers of casino software and a selection of their most popular games. 

Whether you’re a recreational gambler or do profitable casino offers, having some insight into the best casino software providers can enrich your time playing online slots and games. 

Types of Casino Games

Online casinos host a range of different types of games. These originated from versions in land-based casinos, bingo halls or other physical format like lotteries.

Here’s a list of some types of games you’ll find in online casinos:

• Table Games - roulette, blackjack, poker, baccarat
  
• Live Dealer Games - spin the wheel, table games
  
• Slots
• Jackpot Slots
  
• Scratch Cards
  
• Lotto
• Keno
  
• Slingo
  
• Bingo

How Were the Best Software Providers Chosen?

There are hundreds of online casino game providers, with 654 currently listed by Slotcatalog. 

To compile the list of some of the best providers, a combination of personal experience of doing hundreds of casino offers was used, alongside these internet sources:

• SlotRank by Slotcatalog
• ProviderRank by Slotcatalog
• International Gaming Awards (IGR) Award Winners
• eGaming Review (EGR) B2B Award Winners

Most Popular Casino Games Listed by SlotRank

Slotcatalog is a website that lists and reviews online casino games. It provides useful statistics like Return To Player (RTP), variance, maximum win, game features, and slot theme. 

To make their SlotRank list of the most popular slots, Slotcatalog checks over 2000 online casinos worldwide daily. They look at the main ‘lobby’ part of the casino, using incognito mode to avoid any personalised recommendations affecting the results. 

Slots in more prominent positions in the lobby are scored most highly. A weight multiplier is applied with more popular casinos in the country having a higher multiplier. The slots are then listed in score order to give them a popularity ranking. 

The SlotRank will change daily, so the rankings below are just a snapshot of the list at the time of writing (13th February 2025) rather than a definitive list of the greatest slots. However, it gives insight into the current popularity of slots.

You can find more information about SlotRank at this link:

What Is SlotRank?

Most Popular Casinos Listed by ProviderRank

Slotcatalog uses the information gathered by SlotRank to compile a list of the highest-ranking Game Providers. Game providers are granted points according to how many games they have listed on SlotRank and their rankings on the list.

You can read more about ProviderRank here: 

What Is ProviderRank?

Here are the top 25 game providers in the ProviderRank list as of 13th February 2025: 

International Gaming Awards Winners

We all know that industry awards aren’t perfect (there have been plenty of contentious winners and omissions over the years in awards ranging from the Oscars and BAFTAs to the GRAMMYs and Brit Awards, for example).

However, looking at casino gaming awards is a good way to gauge the importance and influence of game studios over time. With this in mind, we’ve listed historic winners of key awards most relevant to game providers. 

First off, here are the awards in five categories from 2008 to 2025 from the International Gaming Awards (IGA).

The chosen categories are:

• iGaming Software Supplier
• Slot Manufacturer / Provider Online or Land Based
• Innovator
• RNG Casino Supplier
• Games Studio of the Year

Some of these categories have been renamed, and those in the second table were introduced later. Companies with an asterisk next to them are involved in online casino software but aren't game providers.

You can read more about the International Gaming Awards at their site here. 

These categories were introduced later:

EGR B2B Awards

EGR (eGaming Review) is a website covering online gambling industry news. It hands out annual awards, including the EGR B2B (Business-to-Business) awards. 

Again, the categories most relevant to game providers were chosen, as follows:

• RNG Casino Supplier / Software Supplier
• Live Casino Supplier
• Slot Provider
• Innovation in RNG Casino Software
• Innovation in Slot Provision

The awards have been split into two tables for ease of reading:

Innovation awards:

The Best Casino Software Providers

In this section, we’ll list many of the game providers listed above. Providers that don’t offer their products in the UK aren't listed. Click on the game provider to expand the section.

4ThePlayer

4ThePlayer was founded in 2018 by a team of experienced members of the gaming industry and has created over 40 slots. An interesting feature is that the names of all its slots begin with a number. Here are a few of them: 

• 7 Gold Fruits
• 5 Wild Buffalo
• 10000 BC 2 DoubleMax (made with Yggdrasil Gaming)
• 4 Fantastic Vikings Go Fishing

5 Wild Buffalo from 4ThePlayer:

Next

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Betsoft

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Blueprint Gaming

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Bragg Gaming Group

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Design Works Gaming (DWG)

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ELK Studios

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Evolution Gaming

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Eyecon

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Fortune Factory Studios

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Gameburger Studios

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Games Global

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Gaming Realms

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Gamomat

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Hacksaw Gaming

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IGT

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Inspired

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Just For The Win Studios

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Light & Wonder

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NetEnt

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Nolimit City

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Play’n GO

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Playson

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Playtech

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Playtech Brand

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Playtech Origins Brand

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Playtech Vikings Brand

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Pragmatic Play

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Quickspin

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Realistic Games

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Red Tiger Gaming

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Reel Kingdom

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Relax Gaming

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Snowborn Games

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Stormcraft Studios

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Swintt

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Triple Edge Studios

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Yggdrasil Gaming

Summary

Whether you’re a recreational gamer or someone who regularly takes part in casino offers, it’s good to have some knowledge of the current state of the online casino gaming market. 

With over 650 game providers at the moment, there’s certainly plenty of choice, and the quality and variety of what’s on offer is constantly increasing. 

Game providers create a wide range of products, from table games like roulette and blackjack, to live dealer games, slots, scratch cards, Slingo, and bingo.

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