Updated Updated: 2024


wms logo

Quick facts

  • Country of origin – USA
  • Owners – SG Corporation
  • Year founded – 1943
  • Type of games – Slots
  • Games (amount) – 138
  • Game releases per year – More than 5
  • Most popular games – Willy Wonka, The Spartacus: Gladiator of Rome, KISS
  • Top casinos to play games at – Bet365, Mr Green, Leo Vegas
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Williams Interactive, now known as WMS Gaming, has been in the gaming business since the early 1940s. Starting out in pinball and arcade games, WMS became the go-to company for land-based gaming products in America.

The company has a wealth of experience in the online and offline gaming industry, with recent years seeing them take on the online gambling sector with great success. A takeover from the Scientific Games Corporation has given its development budget a major boost, and the deal still allows them to hold full control over their game designs and ideas.

WMS Gaming is a slots specialist with the right business deals in place to make a name for themselves in the online game development environment, plus the backing of Scientific Games will help them find plenty of new followers!

  • Over 60 years in the gaming business

  • Specialists in ‘classic’ and ‘old-school’ games

  • Branded games available

  • WMS only develop slot games

  • A smaller collection of games than other developers

Game Portfolio

WMS games are well known across the online gambling industry and this is mostly thanks to the exclusive branding rights that they managed to sign. Monopoly, Star Trek, The Wizard of Oz, and the world-famous Willy Wonka and the Chocolate Factory are just some of the big-name games that have been released from the WMS design team.

The total number of slot games under the WMS umbrella exceeds 100 and these range from movie-inspired themes to classic arcade-based games. Their slots collection is vast but that’s where it stops, the WMS design team did attempt some table-based games like roulette but unfortunately, these were not as successful.

The majority of WMS games that you’ll find online will be slot-based, this is what their design team excel at so it makes sense to stick to what they know, for now anyway. You’ll find plenty of themes and progressive jackpots to enjoy amongst the WMS back catalogue, and we expect a lot more exciting games to be released over the next few years.

Unique Features

The history of WMS gaming goes right back to the mid 20th century and this brings a huge source of knowledge and experience, so much so that WMS are renowned for their skills in creating the best ‘classic game’ themes. The likes of Reel ’em In and Jackpot Party are now iconic games at many online casinos across the internet. If it’s classic arcade games that you want then look out for the WMS game logo!


1943 Formed as Williams Manufacturing Company by Harry E. Williams and started out in the pinball market by creating the first ‘tilt’ pinball mechanism.
1970s Branched out into developing coin-operated arcade games like Defender, Robotron: 2084, and Paddle Ball.
1987 Rebranded to WMS Industries Inc and continued to develop their own arcade games and acquire other big companies in the industry like Midway and Bally.
1990s Closed down the pinball development and concentrated on the slots and gambling side of the business.
2010 WMS starts to expand and focus on the development of online slots with many of their games starting to appear in many of the popular online casinos.
2013 Merged with Scientific Games (SG Gaming) as a wholly-owned subsidiary and continues to develop engaging and unique slot themes. 

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