Abstract: The invention provides a gaming machine comprising a display for displaying a game comprising the display of randomly selected game symbols and where predetermined winning combinations of the randomly selected game symbols in the game award prizes to a player. A game controller controls the display of the game symbols on the display and determines whether a trigger event has occurred in the play of the game. The trigger event has a probability with a probability component that is independent of the value received from the player. Upon occurrence of the trigger event, the game controller offers a plurality of bonus prizes for selection by the player. Once the player selects a bonus prize, the game controller causes the selected bonus prize to only be available during play of the game. A method is also provided.

Abstract: A gaming machine comprises a display and an electronic controller for playing a base game. In the base game, there is a plurality of different types of trigger symbols and the electronic controller randomly determines whether to display one or more trigger symbols of one type. A feature game has a plurality of levels, each level being associated with one of the types of trigger symbols. The feature game is triggered by the appearance of one or more trigger symbols and is displayed at the level associated with the type of trigger symbol that triggers the feature game.

Abstract: A gaming machine comprises a display and an electronic controller for playing a first game. The first game includes randomly displaying bonus symbols that may be accumulated or collected to obtain the award of a bonus prize, such as a progressive grand jackpot prize. The threshold number of bonus symbols required to win the bonus prize varies depending on the amount of the wager or bet made to play the game.

Abstract: A gaming machine comprises a display and an electronic controller configured to display a first game and a second game comprising a first plurality of randomly generated numbers and a second plurality of randomly generated numbers, respectively. In the first game, a first combination of two or more of the randomly generated numbers is associated with triggering the second game. In the second game, a second combination of two or more of the randomly generated numbers is associated with a value award payable to a player, preferably a progressive jackpot prize. The second game may comprise a third combination associated with triggering a third game comprising a third plurality of randomly generated numbers where at least one combination is associated with another value award, preferably a progressive jackpot prize of higher value.

Abstract: A gaming machine comprises a display and an electronic controller for playing a first game. A bonus prize value award is calculated from the multiplier selected by the electronic controller and a wager made by a player. The bonus prize value award is associated with a trigger event. When the trigger event occurs in the first game, the bonus prize value award is paid to the player. The multiplier may be randomly selected from a range of multipliers or selected based on a number of special symbols collected by the player. The trigger event may be the appearance of one or more special symbols or a designated configuration of game symbols.

Abstract: A gaming machine comprises a display and an electronic controller configured to display a first game and a second game comprising a first plurality of randomly generated numbers and a second plurality of randomly generated numbers, respectively. In the first game, a first combination of two or more of the randomly generated numbers is associated with triggering the second game. In the second game, a second combination of two or more of the randomly generated numbers is associated with a value award payable to a player, preferably a progressive jackpot prize. The second game may comprise a third combination associated with triggering a third game comprising a third plurality of randomly generated numbers where at least one combination is associated with another value award, preferably a progressive jackpot prize of higher value.

Abstract: The invention provides a gaming machine comprising a display for displaying a game comprising game symbols arranged into an array of game positions. A controller controls the display of randomly selected game symbols on the display in an array of game positions, preferably arranged into reels. One or more bonus positions are also displayed above the reels, the bonus positions each being associated with a reel. The bonus positions each display a bonus symbol associated with a game enhancing element, such as a credit prize, free games or a jackpot. When a trigger is displayed in a game position of a reel, the controller must award the game enhancing element associated with the bonus symbol displayed in the bonus position associated with the reel. A method is also provided.

Abstract: The invention provides a gaming machine comprising a display for displaying a game comprising game symbols arranged into an array of game positions. A controller controls the display of randomly selected game symbols on the display in an array of game positions, preferably arranged into reels. One or more bonus positions are also displayed above the reels, the bonus positions each being associated with a reel. The bonus positions each display a bonus symbol associated with a game enhancing element, such as a credit prize, free games or a jackpot. When a trigger is displayed in a game position of a reel, the controller must award the game enhancing element associated with the bonus symbol displayed in the bonus position associated with the reel. A method is also provided.

Abstract: A gaming system for play of a base game, and arranged to detect a trigger condition during the base game. A feature game is implemented when a feature game frequency criterion is met. The feature game frequency criterion may be based on the number of base games having been implemented since the last implementation of a feature game.

Abstract: The invention provides a gaming machine comprising a display for displaying a game comprising the display of randomly selected game symbols and where predetermined winning combinations of the randomly selected game symbols in the game award prizes to a player. A game controller controls the display of the game symbols on the display and determines whether a trigger event has occurred in the play of the game. The trigger event has a probability with a probability component that is independent of the value received from the player. Upon occurrence of the trigger event, the game controller offers a plurality of bonus prizes for selection by the player. Once the player selects a bonus prize, the game controller causes the selected bonus prize to only be available during play of the game. A method is also provided.

Abstract: The invention provides a gaming machine comprising a display for displaying a game comprising game symbols arranged into an array of predetermined game positions. A plurality of character symbols are offered for selection by the player. The selected character symbols appearing in the game are accumulated by the player and the player is awarded a bonus prize based on the number of said accumulated character symbols. Alternatively, the player selects from a plurality of characters that are associated with a range of multiplier values. A game controller selects a multiplier value from said range of multiplier values associated with the selected character and the player is awarded a bonus prize calculated from the selected multiplier value. Related gaming machines and methods are also provided.

Abstract: A gaming system for play of a base game, and arranged to detect a trigger condition during the base game. A feature game is implemented when a feature game frequency criterion is met. The feature game frequency criterion may be based on the number of base games having been implemented since the last implementation of a feature game.

Abstract: A gaming system for play of a base game, and arranged to detect a trigger condition during the base game. A feature game is implemented when a feature game frequency criterion is met. The feature game frequency criterion may be based on the number of base games having been implemented since the last implementation of a feature game.

Abstract: A gaming system for play of a base game, and arranged to detect a trigger condition during the base game. A feature game is implemented when a feature game frequency criterion is met. The feature game frequency criterion may be based on the number of base games having been implemented since the last implementation of a feature game.

Abstract: There is disclosed a method of gaming comprising receiving a selection of at least one combination of symbol display positions of a set of symbol display positions at which selected symbols will be displayed in a game round, selecting symbols for the game round, and evaluating whether symbols displayed in each selected combination of symbol display positions for the game round correspond to one or more jackpot events associated with respective ones of a plurality of jackpots having different values to thereby determine whether to award one or more of said jackpots in respect of each selected combination.