Best WMS Slots: Play Free Demo Or Real Money

WMS Gaming, or simply WMS, is a legendary developer of online casino games with headquarters in Las Vegas. It was founded in 1999 as part of the parent company WMS Industries and currently operates as part of Light & Wonder.

Players can browse nearly 150 WMS slots playable in licensed online casinos. The company ceased operations in its iGaming department in 2022, when the release of its last online slot was. However, it's about to come back with a new project in 2025.

WMS History

Williams Manufacturing Company was established back in 1943, and around 1974, it was rebranded to WMS Industries. At the same time, a new department was created to take over the company's business in developing pinball games based on innovative software and concepts. That was WMS's main field of operations until the 1990s, but it was abandoned after becoming unprofitable.

In 1991, WMS launched Williams Gaming and entered the state video lottery market. It was an endeavor with satisfactory success, which opened new horizons. In 1994, WMS decided to join the market of reel-spinning slot machines, and two years later, in 1996, the company introduced Reel 'em In. The brand was reused a decade later for the online slot Reel 'em In! Catch the Big One 2 and in 2015 for Reel 'em In! Big Bass Bucks.

The premiere was more than successful, and soon, the provider came out with Boom, Filthy Rich, and Jackpot Party, along with other multi-line slot cabinets. In 1999, Williams Gaming was incorporated and rebranded as WMS Gaming and continued with the development, sale, management, leasing, and licensing of gaming machines.

WMS suffered a major crisis in 2001, and the next several years after a glitch was found in its gaming software. Players were able to collect multiple credits without paying, and IGT, along with other studios, filed lawsuits against the provider. Anyway, the problem was fixed, and in 2003, WMS Gaming introduced the CPU-NXT video operating platform.

The Linux-based system quickly brought the brand among leaders and innovators of the industry. After more than a decade of successful projects, WMS Gaming attracted the interest of Scientific Games, a leading US game developer and marketer. In 2016, the corporation acquired all assets of WMS in a deal for $1.5 billion, despite the fact that it left Scientific Games with a debt of over $3 billion.

In March 2022, the gaming and online gambling divisions were separated from the company's lottery business and were rebranded to Light & Wonder. The WMS brand was retained, but no new slots have been released since then. However, a new WMS slot was announced for potential release in February 2025 - Kronos Megaways, so the final chapter of the studio's history may be upon us!

Where to Find WMS Casinos for Playing

Depending on your country of residence, the number of WMS casinos may vary in wide limits. The company was involved in the development of online slots, mainly for the US, LATAM, and Asian markets. In order to assist, our experts check the top casino operators, and below, you can find their top suggestions:

• BC Game Casino - a crypto gambling heaven with more than 10,000 games supplied by world-class developers. Here, you can find unique crypto-asset features, bonuses, tournaments, and loyalty rewards.
• Videoslots - a reputable online casino with an excellent game catalog and bonus policy. You can benefit from useful features like professional support, a diverse selection of payment methods, and premium mobile apps.
• Dazard Casino - a brand of Dama NV, an experienced operator dedicated to providing quality gaming experience. The platform offers a loyalty program, VIP Club, and cryptocurrency integration, along with an abundance of games by top studios.
• Qbet Casino - a quality online casino and sports betting website powered by top-notch providers. Players can choose from a variety of fiat and crypto payment methods and play with generous bonuses.
• PlayOJO - a popular slot and table games platform with a fair welcome package. The operator holds several major licenses, including by the UK Gambling Commission and US regulators.

Why Choose WMS Games?

SlotCatalog is the best place to try WMS demo games and find out whether the provider's content can be of interest to you. You can also pick from the approved casino sites and choose from thousands of titles for instant play. Below, you can find key facts about the brand, which may tip the scales further:

• One of the first online gambling developers
• Excellent reputation despite the slot cabinets' glitch
• A portfolio of nearly 150 WMS slot games
• Partners with top casino sites with major licenses
• Sophisticated software packed with innovative features
• Slots boast advanced mechanics and wide betting ranges
• It's now part of the leading provider Light & Wonder
• Games in several languages and multiple denominations available

10 Best WMS Slots to Try

Slots designed by WMS vary in wide ranges when it comes to mechanics, payout rates, and bonus features. Seasoned analysts can clearly see the different stages in the provider's development through the years. We rank the titles as per their quality and popularity, and below you can find our top 10 WMS games list:

Spartacus Megaways

Spartacus Megaways comes with impressive stats, like an RTP rate of 96.32% and a max win multiplier of 12,500x the bet. Like in most other games produced by WMS, the maximum exposure can't exceed $250,000. This game is not an ordinary Megaways slot and comes with a 6-reel grid with up to 10 symbol positions.

Spartacus Megaways boasts up to an unprecedented 1,000,000 ways to win per spin! The slot offers epic gameplay and awesome audio-visuals despite the fact that the title was released before the dawn of AI design tools. Get ready for high volatility wins and a magnificent Free Spins bonus with expanding wilds.

Raging Rhino Rampage

Raging Rhino Rampage is a medium volatile slot launched in 2020 with an RTP of 96.20%. The rate jumps up to 96.70% via the Buy Pass tool. The game pays up to 12,500x the bet and offers advanced mechanics. The grid consists of 6 reels and 4 rows and can expand up to 6x8 during the bonus.

Thus, Raging Rhino Rampage provides from 4,096 to 262,144 ways to win. The Paytable includes several high-valued animals, wilds, and scatter symbols. WMS has included several features in the pack - Expanding Reels, Extra Rhinos, Free Spins with wild multipliers, and Wheel Feature with jackpot prizes.

Cluedo Cash Mystery

Cluedo Cash Mystery is a 2021 slot game developed especially for the fans of "Cluedo" - a murder mystery board game. It is characterized by medium volatility and has a very good RTP of 96.51%. The 5-reel grid is packed with 20 lines paying both ways and various technical features.

Cluedo Cash Mystery is among the most active WMS free slots, and there is a good reason for that! Besides the both-way paylines, the machine is loaded with a Bonus Game that offers 180 combinations of spins, multipliers, and modifiers. The payout potential of the title is 3,750x the bet, but no more than $250,000.

Invaders Megaways

Invaders Megaways came out of the WMS factory in 2021 and quickly conquered the minds of slot enthusiasts. It utilizes a cartoonish UFO theme and comes with excellent graphics and funny animation effects. The 6-reel grid offers up to 7 rows on each column during the base game and up to 10 in the bonus round.

Invaders Megaways boasts high volatility, a 96.30% payout rate, and a win cap of 25,000x the bet. The Mythical Unicow feature may randomly trigger and award between 168,070 and 1,000,000 ways to win. The rest of the bonus pack includes random wild transformations and free spins with special symbols.

Amazon Queen

Amazon Queen comes with stunning visuals, at least for 2014 when it was released. The game boasts medium to high levels of volatility and an almost impressive RTP of 95.90%. The max win is capped at 4,167x the wager, and the base game grid provides 5 reels, 3 rows, and 20 selectable paylines.

Amazon Queen offers intriguing mechanics because almost all symbols pay as expected from the leftmost reel to the right. However, the most valuable Gorilla pays both ways! Wilds will help you collect more payouts, while scatters have the power to activate Free Spins.

Bier Haus

Bier Haus is a thematic online slot inspired by the traditional Oktoberfest in Germany. It was launched in 2015 and upgraded with sequels in the following years. The grid is relatively wide - 5 reels and 4 rows, and generates up to 40 paylines per spin. It’s a medium to highly volatile slot with 96% of RTP.

Bier Haus quickly gets under the skin with creative symbol designs and animations. It has a solid payout potential, thanks to an intriguing bonus round with a Wild Feature. Free Spins is played with a persistent wild symbol, so every round is a potential jackpot drop.

Montezuma Megaways

Montezuma Megaways is one of my personal favorites among the WMS slots! The artwork here is amazing, and the game comes with Megaways mechanics and up to 117,649 ways to win. Volatility is high, the max payout is 12,500x the stake, and the RTP rate is fair - 95.92% up to 96.17% through Buy Pass.

Montezuma Megaways is loaded with the most advanced Megaways Reels and wins trigger cascades for more potential payouts. The Top Reel may respin on losing rounds, and the Free Spins bonus is enhanced with a progressive multiplier and a guaranteed minimum win.

Neptune's Quest

Neptune's Quest is the last online slot released by WMS, at least for the time being. The game has an RTP rate of 96.39% and boasts medium to high volatility. The grid has a unique configuration of 2-2-6-6-6x2 and 100 ways to win.

The first part of the board consists of a couple of 2x2 grids and a second part of 3-6, which unites them. Neptune's Quest is packed with frequent wild wins and a Free Spins bonus that can be triggered in more than one way. In any case, you'll have an Extended Wild to win big!

Monopoly Electric Wins

Monopoly Electric Wins was introduced in October 2020, and it's certainly among the best WMS slots. The game carries one of the biggest max win potentials in the provider's catalog - 16,666.70x the bet. Moreover, it has an excellent RTP rate of 96.39%, especially given the low to medium levels of volatility.

Monopoly Electric Wins has a wonderfully designed grid with 6 reels, 3 rows, and 729 ways to win. Wilds can offer an x2 multiplier in the base game, but the Board feature is where you'll want to be. You'll play a real Monopoly game with special tiles and various events that can easily lead you to the slot's win cap.

Monopoly Grand Hotel

Monopoly Grand Hotel is another WMS slot based on the legendary board game. This one came out in 2019 and offers 50 paylines on a 5x3 grid. It's characterized by medium volatility and has a payout rate of 95.42%. The max win is modest - 3,000x the bet, but premium entertainment is guaranteed!

Monopoly Grand Hotel is loaded with 4 fixed jackpots - Grand, Major, Minor, and Mini, and a variety of special symbols that activate features. The bonus minigame can be retriggered up to 240 consecutive free spins, and the top payout is £250,000.

WMS Slots With The Highest RTP

Return to Player is one of the most important indicators for every online casino game. It shows how much players can expect in return for their bets in the long run. WMS features different rates, and some of its titles are available in several variants. Here are the highest WMS slots RTP rates as per our research:

Snow Leopard - Highest RTP Slot by WMS

Snow Leopard is a medium volatile slot that comes with the highest payout rate in the studio's catalog - 97.75%. However, that number is only available for high rollers who have activated the Big Bet feature. For wagers below $2 per spin, the base game RTP is 94%, and for bets equal to or higher than $2, it is 96%.

Snow Leopard comes with a 6x4 grid with 40 paylines, which double up to 80 during the Big Bet. This tool brings Double Reels feature and activates 5 consecutive spins at a certain price on 2 identical grids and with various modifiers. Snow Leopard is also packed with Wild Reel and Free Spins.

WMS RTP Rates

The WMS casino games have different RTPs, but in their majority, the rates remain fair and within the range of 95% - 97%. As I already mentioned, the highest one is 97.75% with Snow Leopard, while the lowest is 91.10% in Jumpin Jalapenos. WMS has a single RNG table game - Monopoly Roulette Tycoon, based on European Roulette and offering an RTP of 97.30%.

Special Features of WMS Slots

WMS slots rarely come with poor feature packs, although the very first machines had rather classic gameplay. Features vary from common grid modifiers and free spins to progressive jackpots and innovative tools like Big Bet. In the following paragraphs, I'll introduce 3 of them that carry the most significant potential.

Free Spins

At the time of writing, WMS has 148 online slots in its catalog, and 99 of them are packed with at least one Free Spins bonus. That is both rather expected and quite impressive. Players often feel disappointed if such a bonus is missing any slot but classic fruits. Well, here, that won't be an issue!

Wild Modifiers

WMS loves to include wild modifiers in its online slots, and often more than one is available. The variety includes random wilds, wild reels, sticky wilds, and many others. In the table below, you'll find only 5 of the titles, but keep in mind that in almost any of them, a new wild surprise is creatively wrapped up.

Progressive Jackpots

WMS is not the most popular developer of progressive slots, but some of its titles are linked to the Mega Drop network. They offer Epic, Major, and Minor pots and were retained after the acquisition from Scientific Games. About 20 of the titles offer such prizes, and here are some of them.

Best WMS Games Series

Despite covering a wide range of themes, the WMS slots also form several exciting series. Some of them consist of 3 or 4 titles, while others stretch far beyond that. In any case, it would be interesting for any slot enthusiast to study them, and here are our top picks:

Monopoly Series

This is one of the most valuable assets of WMS in its online and offline repertoires. The series started with Super MONOPOLY Money Cool Nights launched in both video format and slot cabinet for land-based casinos. It was quickly followed by several amazing sequels, and currently the cluster contains 11 titles.

The newest additions to the series are already introduced in this review article - Monopoly Grand Hotel and Monopoly Electric Wins. I can also recommend MONOPOLY Once Around Deluxe, as I'm also a fan of the franchise. WMS has several other slots based on popular board games, like Yahtzee and Cluedo.

Spartacus Series

This series is also quite popular among players, and the best proof of that is the fact that in 2023, Light & Wonder launched a new sequel - Spartacus Wonder 500. The first title was launched by WMS almost a decade ago in 2014 - Spartacus Gladiator of Rome and it was followed by Spartacus Call to Arms in 2017.

The last two games inspired by the notorious slave-gladiator were in 2020 and 2021 - Spartacus Megaways and Spartacus Super Colossal Reels. Each of these slots comes with fantastic audio-visuals, advanced mechanics, and creative features. I'm quite sure that the best is yet to come!

The Wizard of Oz Series

This franchise is one of the older ones in WMS's library, and in 2022, Light & Wonder decided to breathe new life into it. The new Wizard of Oz is packed with more advanced Cluster Pays mechanics than the usual 30-line payout system that can be found in the games released by WMS.

The first title from the original series was released in 2010 - The Wizard of Oz, and the second, Ruby Slippers, in 2012. Wicked Riches was the last one and it was introduced in 2014, surprisingly ending a high-potential franchise.

Branded Slots

Many WMS games are inspired by popular rock bands, TV series, action actors, and board games. I have already mentioned the Monopoly and Spartacus series, but I can also add the Star Trek franchise. Between 2010 and 2017, Explore New Worlds, Trouble With Tribbles, and Red Alert were released. I couldn't pass up the Bruce Lee and KISS: Shout it Out Loud! tributes either!

Play WMS Demo Slots: Try Free Versions

You can play over 100 free WMS slots at SlotCatalog and choose the most suitable titles via the advanced filters in the library. There is no need for registration or anything else, but sparing some of your time. Each WMS demo provides identical terms like real-money versions, including betting range, bonuses, and special features.

Play WMS Slots For Real Money

Most WMS games presented at SlotCatalog can be played for real as well. For that purpose, you need to pick one of the highlighted casino sites, sign up, and have fun. The WMS real money games are not available in all countries, so make sure that your region is within the covered area. The best online casino operators provide brilliant bonuses and fair terms!

Awards and Honors

WMS Gaming was recognized long ago, but the interruption of the company's activity in recent years deprived it of awards accordingly. The first massive honor was at 2008 Casino Journal's "Top 20 Most Innovative Gaming Technology Products Awards". WMS had 4 products in the top 20 - Powerball Power Seat, Reel 'em In! Compete to Win!, Bluebird2, and Ultra Hit Progressive.

Conclusion

WMS will remain among the legendary producers of premium slot games despite it having been absent in recent years. Most certainly, the company's assets were used by Light & Wonder in the development of various slots in 2023 and 2024. Moreover, a new project is on the horizon, so it might be worth keeping a closer eye on the WMS casinos.

Borislav

Content Writer

About Author Become an author