Progressive jackpots work by raising the total jackpot amount by a small, predetermined amount each time the game is played, but the jackpot is not won. For example: if you play a progressive slot 10 times in a row and don’t win the jackpot, and the predetermined raise amount is 25 cents, the jackpot total will raise by 25 cents each time you play but don’t win. If you don’t win the jackpot 10 times in a row, the jackpot amount raises by $2.50. This applies to all players currently playing the progressive game, not just you.