The game’s sound effects, tones and melodies peeled from the popular television game show are just one of the reasons IGT’s most popular slot machine has endured for 25 years. (Ellen Schmidt/Las Vegas Review-Journal) hear it all the time across the casino, the siren’s call to come play. The Wheel of Fortune slot machine game is celebrating its 25th anniversary this year. Gamblers try their luck in the Wheel of Fortune slots zone at the Plaza Hotel and Casino on Friday, July 30, 2021, in Las Vegas.