WMS

Williams Manufacturing Company (WMS) began as a pinball manufacturer in 1943 and became one of the most influential slot machine companies in history. WMS pioneered several slot innovations including Colossal Reels, Transmissive Reels, and the iconic Reel 'em In bonus system. Their Zeus and Raging Rhino titles remain among the most popular slot games globally. Acquired by Scientific Games in 2013, WMS games continue to be developed and distributed under the Light & Wonder umbrella.