There are three categories of progressive jackpots. Firstly, there are the standalone jackpots, which have no links to jackpots in other casinos. Therefore, you can only win the jackpot on a single slot machine. Secondly, the local jackpots link numerous machines together and have a higher payout than the standalone category. Thirdly, the network jackpots, which connect various machines in a state, have higher odds and consequently higher payouts.