Many online casino regularly host various slots tournaments. Players compete against each other, and the player with the most number of points walks away with the grand prize.
Players pay an entry fee to join the tournament, which is split into two amounts. The first amount, the larger of the two goes towards the Prize Pool (buy-in), and the second smaller amount towards the tournament rake.
The tournament runs for a predetermined amount of time, and during this time players have to spin their tournament credits awarded by the entry fee. Credits decrease for each spin, but any winnings are given as points.
When the time is over, the player with the most points wins the jackpot prize.
Players can normally check the leader board during the tournament, to see what their position is in regards to other players.