From Pinball Cabinets to Online Slots
WMS traces its roots to the Williams Manufacturing Company, founded in Chicago in 1943 by Harry E. Williams. The company spent decades making pinball machines and arcade games (Defender and Joust, to name a few) before pivoting to slot machines in the early 1990s.
Did You Know?
Their first video slot, Reel ‘em In, launched in 1996 and introduced the multi-line, multi-coin secondary bonus format that became an industry template.
By the 2000s, WMS was one of the dominant slot manufacturers in the US, known for branded titles like Monopoly, Wizard of Oz, and Zeus. Scientific Games acquired them for $1.5 billion in 2013, and then fully merged the WMS brand into the parent company in 2016. Scientific Games rebranded as Light & Wonder in 2022, and WMS now exists only as a catalog label within it.
Licenses and Protection
WMS operates under the Light & Wonder umbrella, which holds UKGC and MGA licenses, among others. Always verify that the casino you’re playing at holds its own valid license before depositing.
A Classic Catalog with Limited Offers
WMS titles are part of the Light & Wonder network, which means they appear across a wide range of casino bonus programs, including Telegram offers, from 10 to more than 70 free spins and reload deals like 100% or 40 Free Spins, among others.
Wagering on offers that include WMS titles varies considerably across casinos, from no-wagering options with cash-out caps at the low end and up to 40-50xB.
When it comes to specific deals for WMS titles only, I did claim a 30 Free Spins offer from our list, but it was the only one at the time of writing. The spins were specifically for a WMS slot, and one that I have also played at my casino of choice: Lil’ Red.
Lil’ Red - Pay More Attention to Your Bankroll Than to the Big Bad Wolf
![wms gaming lil red tableau]()
Lil’ Red is a Little Red Riding Hood-themed slot built on WMS’ Colossal Reels mechanic, a format they pioneered and one of the genuinely original things they brought to online slots. The screen shows two reel sets simultaneously: a standard 5x4 main grid with 20 paylines, and a towering 5x12 Colossal reel alongside 80 more paylines.
The mechanic is on point: when a stacked wild covers all positions on the main reel, it transfers automatically to the corresponding reel on the Colossal grid.
I have played a few sessions in the last few years, and I can tell you that the dual reel layout only sounds gimmicky until you see it work. The free spins take a while to trigger, but when they do, they deliver.
WMS Gaming: Still Playable, Rarely Promoted
WMS is a heritage catalog more than an active studio at this point. The games are widely distributed, well-licensed through Light & Wonder, and their classics hold up because the math was built properly, not because the visuals or features compete with modern releases.
For free spins, though, WMS is not one of the most promoted names. You can still find WMS free spins from time to time, especially on older slot titles that casinos keep in their bonus rotation, but the volume is limited.
Written by Bogdan Romedea
Experience
Bogdan is a Junior Content Writer at SpinMyBonus, covering casino bonuses, free spins offers, and in-depth operator analysis.
He came to writing with more industry background than most. He was an Account Manager in the iGaming industry, where he built the operator connections that later fed into his PR work.
From 2023 to 2025, he worked as a PR Specialist within the online gambling industry, managing direct relationships with more than 50 casino operators. That experience gave him direct insight into how casino brands position themselves, how promotions are communicated, and which details tend to matter most to both affiliates and players.
Before moving into content, he also dealt Blackjack at Evolution. That experience sharpened his understanding of how casino products actually feel to use, not just how they look on a bonus page.
He plays poker, slots, and grand strategy games in his free time, which helped him build a practical understanding of how casino products feel from the user side, not just how they are marketed.
At SpinMyBonus, Bogdan combines that operational and PR experience with a genuine interest in casino games and bonuses. His writing is shaped by both industry knowledge and real player curiosity, helping him create content that feels informed, grounded, and easy to trust.
Education
Bogdan holds a Bachelor’s Degree in Political Science from the University of Bucharest. His studies built strong critical thinking and communication skills, both useful when writing content that players are supposed to trust.
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