Slot machine game and system with improved jackpot feature

摘要

Certain embodiments provide a method and system for awarding a progressive prize. The system includes a bank of gaming machines accepting different bets per play as selected by a player. A random number is selected from a predetermined fixed range of numbers that does not change during play of a gaming machine. The player is allotted one or more numbers for each credit bet. The allotted numbers represent a subset of the predetermined fixed range of numbers. A feature game is triggered for the progressive prize based on a numerical comparison between the selected random number and the number(s) allotted to the player. Certain embodiments provide a trigger condition for a feature outcome based on an event having a probability related to credits bet per game at a gaming machine. A probability of success in the feature game may be higher than a probability of success in the base game.

主权项

1. A gaming machine providing a progressive jackpot feature via a second game triggered during play of a first game, in which a wager is made of an amount of credits on the outcome of the first game, comprising: a game controller configured to provide to a player a first game for play, to receive any one of a plurality of different predetermined wager amounts of credits, to cause the occurrence of a trigger condition during the play of the first game, to initiate play of the second game when the trigger condition occurs, to determine a second game outcome by selecting one second game outcome from a number of possible second game outcomes, wherein at least one of the possible second game outcomes results in an award of a progressive jackpot prize, and wherein said controller is configured to cause said occurrence of the trigger condition based on a predefined turnover value and the amount of credits wagered on the first game, and said predefined turnover value is an expected turnover of the gaming machine between a first occurrence of the trigger condition during play of the first game and a subsequent consecutive second occurrence of the trigger condition during play of a subsequent first game.