8 Top Slot Machine Providers

Slots, 777, Logos, Coins, Jackpot

What are the best slot developers offering the most enjoyable games right now? I answer that question in this post and recommend some games from them, too.

There are now hundreds of slot providers based all over the world. It seems new ones launch every few months. However, a few stand head and shoulders above the rest. They have long track records and offer top games.


  • Established: 1994
  • Type: Online
  • Popular Titles: Mega Moolah, Immortal Romance

Microgaming is one of the best British slot providers. It claims to have created the first true online casino. Regardless of whether or not that’s true, it powers some of the best video slots on the web today.


Microgaming offers everything from classic three-reel slot games to 3D video slots. It is infamous for its progressive jackpot game Mega Moolah which is now a series. This game is often dubbed the ‘Millionaire Maker’ and is well worth checking out.

You can try Microgaming slots at Betway Casino, one of our top-rated online casinos.


  • Established: 1998
  • Type: Online
  • Popular Titles: Bubble Bubble 2, Aztecs Millions

RTG was hot stuff back in the heyday of USA casino gaming online. It was based in Atlanta, Georgia, but it had to move offshore when Uncle Sam passed the Unlawful Internet Gambling Enforcement Act in 2006.

Since then, RTG has continued to produce fun, feature-rich slots, and it continues to serve American players.

As with the others, it offers a variety of games, from classics to progressive slots. Try RTG’s top games at Las Atlantis Casino, one of the most generous gambling sites online.


  • Established: 1996
  • Type: Online
  • Popular Titles: Starburst, Mega Fortune

NetEnt is the pride of Sweden when it comes to slot developers. It’s so big that it’s publicly traded on the Stockholm Stock Exchange.

In 2020, it was bought by live gaming powerhouse Evolution, creating one of the most formidable online gaming companies on earth.

NetEnt has a catalog of hundreds of high-quality slots. These include everything from fruit machines to immersive video slots with lots of bonus features.

There are also lots of NetEnt progressive jackpots to be won in games like Hall of Gods.

NetEnt slot machines are available at Casumo Casino, a safe online gambling platform that offers hundreds of slots and exceptional bonuses.


  • Established: 2005
  • Type: Online
  • Popular Titles: Tycoons, Mamma Mia

Betsoft is renowned for its 3D video slots. Its games arguably have the best graphics of any of the online slot providers on this list. A quick spin of any of them will show you how awesome Betsoft slots are visually and in terms of features.

Betsoft has hundreds of games covering every theme imaginable, and all of its games have epic features like free spins, bonus reels, interactive maps, pick ‘em rounds, and expanding symbols.

It also has several progressive slots that could make you instantly rich. You can try many of them at BetOnline Casino, and US players are welcome!


  • Established: 2005
  • Type: Online
  • Popular Titles: Incan Rich, Tahiti Time

Alongside RTG and Betsoft, Rival is one of the companies that serve US-friendly casino sites. It offers a selection of 160 games and growing, and many of them are epic.

When it comes to graphics and features, Rival is up there with the best online slot developers. It offers classic games, video slots, and progressive jackpot games of all kinds.

You can play Rival slots at Wild Casino, one of the best online casinos on the internet.


  • Established: 1999
  • Type: Online
  • Popular Titles: Age of the Gods, Gladiator
Futher Info:

Playtech is a great example of the high-tech companies coming out of Estonia (also called e-stonia because of its digital transformation). It was founded by Teddy Sagi and is so big today that it’s listed on the London Stock Exchange.

Playtech has every type of game with every type of theme you could possibly imagine.

It also has lots of branded slots such as Top Gun, Gladiator, and DC Comics. Playtech slots are always a treat, and some of them have eye-watering progressive jackpots up for grabs.


  • Established: 1975
  • Type: Online/Land-Based
  • Popular Titles: Isle o’ Plenty, Cleopatra

Interactive Game Technology is one of the casino game companies that had slots in lots of land-based casinos long before the online gaming revolution began. Today, it’s one of the biggest gaming companies in the world, with lots of popular games of all kinds.

While you can play almost any kind of slot at IGT casinos, including old-school games, I’d like to point you in the direction of its MegaJackpots series. These games are all interlinked, with a few progressive jackpots up for grabs. Millions can be won if you play these at the right time.


  • Established: 2013
  • Type: Online
  • Popular Titles: Valhalla, Odin Infinity Reels

Yggdrasil is just coming up on a decade in business, but it has already racked up more awards than I can keep track of. This company takes pride in creating visually stunning games with innovative features.


As I said, Yggdrasil games are renowned for their visual appeal and features. For example, it pioneered the Gigablox feature in which blocks sized up to 6×6 can appear on the reels. The Splitz feature offers up to 200,000 ways to win in games like Temple Stacks.

You can find Yggdrasil offers games at PlayAmo. The casino will give you a large bonus just for joining, and a bunch of other promos are available later on.


Like the sound of these top slot providers? You can try their games at the best online casinos for slots. We’ve vetted all of these sites and are 100% certain they’re safe and fair.

If you sign up at any of the slots casinos on our site, you’ll be eligible for welcome bonuses like deposit matches and free spins. You’ll also enjoy fast, secure payouts via Visa, Bitcoin, and other payment methods.

Petko Stoyanov
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About Petko Stoyanov
My name is Petko Stoyanov, and I've been a gambling writer for more than ten years. I guess that was the natural path for me since I've loved soccer and card games for as long as I can remember! I have a long and fairly successful history with English Premier League betting and online poker, but I follow many other sports. I watch all big European soccer leagues, basketball, football, and tennis regularly, and I keep an eye on snooker, volleyball, and major UFC events.