Online Casino Software in the US

Discover the best casino software providers and learn what makes them great. On this page, we feature all the most popular game suppliers across US casinos in states like New Jersey, Pennsylvania, and Michigan.

We also cover what’s important besides software and why casinos we recommend are selected based on numerous criteria like trust, payout speed, and customer support.

Top Casino Software Providers

Browse the top online casino software providers in the US. We’ve selected the top 3 providers as a quick-start guide, but you can scroll down for an overview of all popular game suppliers.

Feel free to click the provider’s name to learn more and find the best casinos for each.

Ainsworth Gaming

Though lesser known, Ainsworth Gaming has been active since the 90’s. This casino software provider has produced dozens of quality slot machines for land casinos and online gambling sites. The supplier’s is known for producing high volatility games with lower-than-usual RTP. You may have heard of games like Amazon Gold and Roaming Reels, but in some NJ casinos you can browse 70+ Ainsworth Gaming slots, so you have plenty to discover on your own. Best Ainsworth casinos


Barcrest is a giant in the gambling industry, having been in operation for 50+ years. A UK company, they started off by producing fruit machines for pubs and arcades, then switching to partnerships with casinos. They were one of the first to jump in the online gambling market, and now they’re active in the US as well. Though not all this supplier’s games are on the US market, you can still enjoy classics like Road to Riches, Legend of Bigfoot and Dr. Jekyll Goes Wild. Best Barcrest casinos

Bally Technologies

Bally Technologies, based out of Vegas, is a prominent name in the US gambling sector. This online casino software was founded in 1968 and acquired by Scientific Games in 2014. The supplier is a sister company to the likes of WMS, NextGen and Shuffle Master. Bally is best-known for it’s pop-culture themed slots, like Anchorman: The Legend of Ron Burgundy. In the US online casino market, you can usually find over a dozen Bally slots. We also recommend Monopoly 250k, Celestial King and Sword of Destiny. Best Bally casinos

Evolution Gaming

Evolution Gaming is an exclusively online casino software provider, well known as the best casino software for live dealer games in the world. Naturally, they were the first to enter the US legal market, with live tables of Blackjack, Baccarat, Poker, and some Game Shows. Evolution’s live lobbies are known for their production quality, engaging presenters and unique game features. We recommend tables like Immersive Roulette and Game Shows like Crazy Time. Best Evolution Gaming casinos


Konami Gaming is a Japanese casino software provider that’s also well-known in the video game industry. They produce slot machines for land and online casinos, and they’ve made an early foothold in the US online market. In states like New Jersey, they have 30+ online slots on offer, many of them with an Asian theme. We recommend you try slots like Dynamite Dash, Lotus Land and Wings of the Phoenix. Best Konami casinos


NextGen was founded in 1999, rising in popularity with hits like Medusa I, then Medusa II and 300 Shields. Over the years, this casino software provider has developed hundreds of slots and table games. Many of these games are staples at land casinos, and online as well since NextGen’s online market entry through the NYX Interactive platform. NextGen casinos are common, and the supplier’s games have good payout rates, unique themes and rewarding bonus features. Best NextGen casinos

Lightning Box

Lightning Box, based out of Australia, started making online slots in 2010, and entered the US online gambling market as a casino software provider through the NYX platform. Lightning Box is not a household name, but they produce quality, high-paying slots. Our personal favorites are Serengeti Lions, Druidess Gold and Respin Rhino. We also recommend newer releases like Chilli Gold 2 and Silver Pride. Best Lightning Box casinos

Red Tiger Gaming

Based in the UK with offices around the globe, Red Tiger is one of the best up-and-coming casino software provider around. They’ve only been active since 2014, but they’ve already produced a handful of super popular slot machines so far. Red Tiger Gaming initially entered the US market in partnerships with BetMGM Casino and Borgata Casino, but they also expanded in PA in partnership with Rush Street. They offer mega-popular slot hits like Gonzo’s Quest Megaways, Wings of Ra and Cash Vols. Best Red Tiger casinos


WMS is one of many online casino software under the Scientific Games umbrella. Established in 1943 as Williams Manufacturing, WMS made its first slot game in 1996 – Reel’em In. In 2010, they entered the online gambling market, and 3 years later they were acquired by Scientific Games. Today, they’re well-known for producing some of the most popular slots on the market. WMS is widely available across legal US gambling sites, and they offer games like Monopoly, Raging Rhino, Zappit Blackjack, Let It Ride, and many others. Best WMS Online casinos

Best Slot Machine Software for US Casinos

In every online casino, slots are by far the most played game type. It warrants a special section where we guide you to the best slot game suppliers with quick access to the top games and why the provider’s slots are rated so high.

NetEnt Slot Machines

NetEnt slots are known for innovation, setting the bar in many aspects of slot making. They were also one of the first to put the strongest emphasis on mobile optimization with their “Touch” series of slots.

NetEnt slot machines feature unique, rewarding features and bonus rounds. They create slots based on various exciting themes produced with state-of-the-art graphics and animations. As a NetEnt fan, you can look forward to constant new slot releases and a huge library of classics like Starburst, Blood Suckers, and Gonzo’s Quest.

Slot NameRTPFree SpinsSpecial Features
starburst slot logo
96.01%NoRespin feature
gonzos quest megaways slot logo
Gonzo's Quest Megaways
96.00%YesTumbling Reels
dead or alive slot logo
Dead or Alive
96.82%YesSticky Wilds
Browse the best NetEnt online casinos in the US. NetEnt casinos

IGT Slot Machines

IGT slots are commonplace in land and online US casinos. This online casino software provider has released a handful of mega-hits over the years.

They have high-paying slots with simple but rewarding features like additional multipliers and free spins. They also have quite a few jackpot slots under the “MegaJackpots” branding.

Slot NameRTPFree SpinsSpecial Features
cleopatra slot logo
95.02%Yes6x win multiplier in Free Spins
mega jackpots cleopatra slot logo
Mega Jackpots Cleopatra
92.48%YesProgressive jackpot, Double Wild feature
pharaohs fortune slot logo
Pharaoh's Fortune
96.53%Yes6x win multiplier in Free Spins
Browse the best IGT online casinos in the US. IGT casinos

Big Time Gaming Slot Machines

Big Time Gaming is possibly the best online casino software for slots in recent years. They’ve made a boom with the Megaways innovation, which they’ve also issued as a license to partners like Red Tiger.

Megaways didn’t stop them. BTG is also releasing new, innovative slots based on the Megaclusters and Megaquads features. Bonanza was the Megaways slot that started it all, but now they have dozens of the highest paying slot machines on the market.

Slot NameRTPFree SpinsSpecial Features
bonanza megaways logo
Bonanza Megaways
96.00%YesUnlimited win multiplier, Reactions feature
slot vegas megaquads logo
Slot Vegas Megaquads
96.59%YesMegaquads – 2 slots merged into one
monopoly megaways logo
Monopoly Megaways
96.50%YesReactions feature, Reel Adventure feature
Browse the best BTG online casinos in the US. Big Time Gaming casinos

Best Online Video Poker Software Provider

As the inventors of Video Poker – IGT games don’t require much thought to be declared a winner in this category. Across the US online market, they supply the most popular video poker titles and in the greatest numbers.

Game NameRTPMulti Hand?Software
game king video poker logo
Game King
Video Poker
98.35%Noigt logo
ten play draw poker logo
Ten Play
Draw Poker
98.28%Yesigt logo
triple play draw poker logo
Triple Play
Draw Poker
99.72%Yesigt logo

Best Live Dealer Casino Software

Evolution is the undisputed king for live games, but some variety is always good, and Ezugi Live has good things to offer as well. Have a look at the best game per type and the casino software company behind it.

Game TypeBest VariantSoftware
BlackjackUnlimited Blackjack
BaccaratClassic Baccarat
RouletteLightning Roulette
PokerUltimate Texas Hold’em
Game ShowFirst Person Dream Catcher

Best Table Games Software Providers

The selection of “normal” table games is not impressive across online casino software providers. Therefore, we split this selection between two casino providers. As you can tell, NetEnt is dominating in this department as well, even though the gambling software is mainly focused on slots.

Game TypeBest VariantSoftware
BlackjackMulti Hand Blackjackigt logo
RouletteEuropean Roulettenetent logo
BaccaratBaccarat – Professional Seriesnetent logo
PokerCasino Hold’emnetent logo

US Online Casinos – What’s Important Besides Software?

The gambling software selection is only one piece of the puzzle. We don’t evaluate casinos based on casino games software alone because other important factors play a huge part in ranking and reviewing.

Have a look at our main points when reviewing casinos partnered with the top online casino software providers.

Some talking points: trust/security/licensing, withdrawal speed, access to convenient payment options, customer support quality, mobile optimization, bonuses.

  • Trust and security

    The first and most important thing is having a legal US license for the states a casino wants to operate in. We also look at the brand’s history and any recorded penalties and complaints to ensure you’re playing at a fair, trustworthy online casino.

  • Fair play

    It’s important for us and players to make sure players can control their spending through tools like deposit limits, loss limits, wager limits, and session limits. The option to self-exclude and a “cool-off” period are important as well.

  • Payment options

    The range of payment options determines how easy you can deposit and withdraw. The more variety, the better it is for players. We look at casinos with varied types of payment options, such as in-person, e-wallets, prepaid vouchers, and credit/debit cards.

  • Withdrawal speed

    The withdrawal speed is a priority when looking at payment options. That’s why we hold e-wallets in high regard – payouts to this method are usually completed in a day or two. We only select casinos with reasonable withdrawal timeframes because holding your money hostage is a big no in our books.

  • Customer support

    It’s almost guaranteed you’ll need help from customer support while playing. As such, having a responsive, widely available live chat service with friendly, courteous support agents is crucial in our evaluation.

  • Bonuses and promotions

    Many players want bonuses, and most US online casinos offer excellent welcome package offers. But we prioritize casinos with fair bonus terms as the ultimate factor. We also consider rewards for ongoing players – like VIP programs, comp points, deposit match offers, cashback, and free spins.


A casino software provider creates or distributes games to online casinos. The software providers usually design the games and then license them to online casinos at a fixed cost, or a deal is made for a portion of the casino’s profits from those games.

The best online casino software providers are NetEnt, IGT, and Big Time Gaming. These casino software providers are our top 3 picks, but dozens of quality game studios partner with US online casinos. We list all the common and popular providers, and we have a dedicated page to each. There, you can learn the best casinos for each software and in-depth info on games and payout rates.

All casino games software must apply for a US license and pass mandatory security checks to ensure that their games are fully legitimate. This means legitimate RNG (Random Number Generator) through rigorous testing and frequent audits to ensure proper payouts and no software tampering.

Online casino software is tested by the license issuer by simulating millions of game rounds to ensure that the Random Number Generator is as advertised. They also monitor the games once they make it live in casinos and perform audits to ensure that that overall payout fits within the RNG and its margin of error.

You can find free online casino software at any US operator and enjoy playing games for free, in demo mode. All you need to do is create your free casino account, and you can play. To win real money, you will need to make a cash deposit and play real money games. The exception are live dealer games which can’t be played for fun.

No, you don’t have to download casino software. The top US online casinos work with HTML5 technology, which lets you easily and instantly access all games directly through the casino website. This applies to desktop and mobile as well. The best US casinos also offer native apps you can download on your iPhone, iPad, or Android, but you don’t have to.