In Blackjack, a progressive jackpot is a side bet where a small portion of each player's wager contributes to a growing prize pool. The jackpot increases as more players place the side bet until it is won, typically by achieving a rare hand like a specific Blackjack combination. The payout for winning the jackpot can be substantial, often reaching thousands or even millions of dollars. After someone wins, the jackpot resets to a base amount and starts growing again. While it adds excitement, the odds of winning are generally low.