US Patent 7972209 Gaming system having progressive tournaments and weighting

A gaming system that provides game play in a tournament in exchange for monetary input per game played is disclosed. The gaming system includes a game server, a plurality of game units connected to the game server via a network, and a progressive tournament controller. The progressive tournament controller manages a tournament prize value that is incremented using criteria other than monetary input. The tournament prize is incremented over time at random intervals rather than being incremented by coin input.