Non-progressive jackpot slots have a pre-set jackpot amount. This sum is composed of the provider’s money and typically does not change with time.
Progressive slots, on the other hand, put a small portion of each bet into the jackpot. The pot grows over time and can reach millions of dollars. The largest online casino win in history was worth the equivalent of $19,000,000 USD. It was won by a British player in 2015.