In April, a Reno woman won $14 million at Atlantis Casino Resort Spa, the largest jackpot in that city’s history. It was the second-largest Megabucks win in Nevada this year, IGT said. The winning spin hit Wednesday at Excalibur. (IGT Gaming)įor the fourth time this year and third time in the Las Vegas Valley, a Megabucks machine has crowned a new millionaire.Ī slots player won $12,185,766 on Megabucks Spitfire Multipliers Triple Red Hot 7s, according to an IGT Gaming spokesperson. A slots player won $12,185,766 on Megabucks Spitfire Multipliers Triple Red Hot 7s on Wednesday, Oct.