Some jackpots in the past have reached incredible amounts that almost seem too good to be true. An amazing $39,7 million was won by a player on a Megabucks machine in Las Vegasmbm slots in 2003, setting a record for the largest slot machine jackpot ever. This enormous win cemented Megabucks' standing as one of the most profitable slot machines available in addition to garnering international attention. Other enormous payouts from progressive slots come in close second; in 2000, for example, a player won $34.9 million at Megabucks.