Abstract: A processor of a gaming machine receives input via an player input device that selects a denomination for a play of a base game and displays symbols of a base game outcome at base game display positions of a display device. The processor randomly assigns to a configurable symbol of the base game outcome a prize that is based on the selected denomination and triggers a play of a feature game based on the play of the base game. For the play of the feature game, the processor retains each configurable symbol of the base game outcome at a corresponding feature game display position of the display device, and for each feature game display position without a configurable symbol, selects and displays a replacement symbol. The processor determines a feature game award based on a sum of prizes for each configurable symbol displayed at its feature game display position.

Abstract: A gaming machine displays, via a display device, a base game outcome in a base game matrix comprising a quantity of base game display positions, and triggers a series of feature game spins in response to determining that the base game outcome comprises at least a threshold quantity of configurable symbols. For a first feature game spin of the series of feature game spins, the gaming machine displays, via the display device, a feature game outcome in a feature game matrix comprising a quantity of feature game display positions. The feature game outcome comprises at least the threshold quantity of configurable symbols from the base game outcome and feature game symbols selected, based on the random number generator, from a feature game symbol set comprising configurable symbols and non-configurable symbols. The quantity of feature game reels is greater than the quantity of base game reels.

Abstract: A game controller selects and displays first symbols at display positions on a display device, and triggers play of a series of feature games when the first symbols correspond to a trigger event. During the series of feature games, the game controller selects and displays second symbols at the display positions, reveals a value for each reveal symbol in the second symbols while retaining other symbols in the second symbols, and determines a feature game outcome based on the value revealed fro each reveal symbol and other symbols in the second symbols.

Abstract: A processor of a gaming machine receives input via an player input device that selects a denomination for a play of a base game and displays symbols of a base game outcome at base game display positions of a display device. The processor randomly assigns to a configurable symbol of the base game outcome a prize that is based on the selected denomination and triggers a play of a feature game based on the play of the base game. For the play of the feature game, the processor retains each configurable symbol of the base game outcome at a corresponding feature game display position of the display device, and for each feature game display position without a configurable symbol, selects and displays a replacement symbol. The processor determines a feature game award based on a sum of prizes for each configurable symbol displayed at its feature game display position.

Abstract: A game controller selects and displays first symbols at display positions on a display device, and triggers play of a series of feature games when the first symbols correspond to a trigger event. During the series of feature games, the game controller selects and displays second symbols at the display positions, reveals a replacement symbol for each reveal symbol in the second symbols while retaining other symbols in the second symbols, and determines a feature game outcome based on the replacement symbol revealed for each reveal symbol and other symbols in the second symbols.

Abstract: A gaming machine includes a game controller that initiates play of a base game in response to a first input received via a player interface. The game controller spins base game virtual reels to select and display a first symbols at display positions on a display device. The game controller, in response determining that a quantity of configurable symbols in the first symbols has a predetermined relationship to a predetermined quantity, triggers display of a feature game. The game controller further sets a quantity of remaining games for the feature game to an initial quantity. For each remaining game of the feature game, the game controller spins one or more feature game virtual reels to select and display symbols for one or more of the display positions with non-configurable symbols while holding configurable symbols at their respective display positions.

Abstract: A gaming machine comprises a symbol selector for selecting a plurality of symbols from a set of symbols for display during play of a base game, the set of symbols including a plurality of non-configurable symbols and a plurality of configurable symbols; a random number generator for generating random prize values; a value assigner for assigning a generated random prize value to each selected configurable symbol; and an outcome evaluator for monitoring play of the base game, wherein a feature game is triggered in response to a trigger event, the trigger event comprising a predefined number of the plurality of configurable symbols being selected by the symbol selector for display.

Abstract: A gaming machine includes a game controller executing instructions stored in a memory. The game controller establishes a credit balance in response to a credit input mechanism receiving a physical item with an associate credit value, and initiates play of a base game in response to a first input received via a player interface. During play of the base game, the game controller spins first reels to select and display first symbols at first display positions displayed on one or more display devices, and determine that a feature game has been won in response to a trigger condition. During play of the feature game, the game controller spins second reels to select and display a second symbols at second display positions displayed on the one or more display devices, and re-spins a subset of the second reels to select replacement symbols for at least a subset of display positions of the second display positions with non-configurable symbols while retaining configurable symbols at their respective display positions.

Abstract: A gaming machine includes a credit input mechanism, a credit payout mechanism, a display device, a player interface, and a game controller executing instructions stored in a memory. The game controller establishes a credit balance in response to the credit input mechanism receiving a physical item with an associated credit value and initiates play of a game in response to a first input received via the player interface. The game controller spins virtual reels to select and display a first symbols at display positions on the display device. The first symbols are selected from non-configurable symbols and configurable symbols. The game controller determines that a prize, associated with an icon that has been split into a plurality of portions, has been won if variable components of the configurable symbols in the first symbols include each portion of the plurality of portions for the icon associated with the prize.

Abstract: A gaming machine includes a game controller that initiates play of a base game in response to a first input received via a player interface. In response to initiating the play of the base game, the game controller selects and displays first symbols at base game display positions displayed on a display device, and determines that a feature game has been triggered in response to a trigger condition. For each game of the feature game, the game controller selects and displays replacement symbols for display at feature game display positions not containing configurable symbols. In response to the feature game display positions displaying a first predetermined quantity of configurable symbols, the game controller expands the feature game display positions to include one or more additional feature game display positions.

Abstract: A game controller selects and displays first symbols at display positions on a display device, and triggers play of a series of feature games when the first symbols correspond to a trigger event. During the series of feature games, the game controller selects and displays second symbols at the display positions, replaces each reveal symbol in the second symbols with a replacement symbol while retaining other symbols in the second symbols, and determines a feature game outcome based on the replacement symbol and other symbols in the second symbols after each reveal symbol is replaced with the replacement symbol. In some embodiments, each replacement symbol comprises a configurable symbol including a common component and a variable component.

Abstract: A gaming machine includes a game controller executing instructions stored in a memory. The game controller establishes a credit balance in response to a credit input mechanism receiving a physical item with an associated credit value, causes a display device to display a first jackpot value associated with a first jackpot, and initiates play of a game in response to a first input received via a player interface. In response to initiating play of the game, the game controller spins virtual reels to select and display first symbols at display positions on the display device, and determines that the first jackpot has been won if the first symbols include a first configurable symbol with a first jackpot indicia as its variable component. The game controller increases the credit balance per the first jackpot value after determining that the first jackpot has been won.

Abstract: A gaming machine comprises a symbol selector for selecting a plurality of symbols from a set of symbols for display during play of a base game, the set of symbols including a plurality of non-configurable symbols and a plurality of configurable symbols; a random number generator for generating random prize values; a value assigner for assigning a generated random prize value to each selected configurable symbol; and an outcome evaluator for monitoring play of the base game, wherein a feature game is triggered in response to a trigger event, the trigger event comprising a predefined number of the plurality of configurable symbols being selected by the symbol selector for display.

Abstract: A game controller selects and displays first symbols at display positions on a display device, and triggers play of a series of feature games when the first symbols correspond to a trigger event. During the series of feature games, the game controller selects and displays second symbols at the display positions, reveals a replacement symbol for each reveal symbol in the second symbols while retaining other symbols in the second symbols, and determines a feature game outcome based on the replacement symbol revealed for each reveal symbol and other symbols in the second symbols.

Abstract: A game controller selects and displays first symbols at display positions on a display device, and triggers play of a series of feature games when the first symbols correspond to a trigger event. During the series of feature games, the game controller selects and displays second symbols at the display positions, reveals a value for each reveal symbol in the second symbols while retaining other symbols in the second symbols, and determines a feature game outcome based on the value revealed fro each reveal symbol and other symbols in the second symbols.

Abstract: A game controller selects and displays first symbols at display positions on a display device, and triggers play of a series of feature games when the first symbols correspond to a trigger event. During the series of feature games, the game controller selects and displays second symbols at the display positions, replaces each reveal symbol in the second symbols with a replacement symbol while retaining other symbols in the second symbols, and determines a feature game outcome based on the replacement symbol and other symbols in the second symbols after each reveal symbol is replaced with the replacement symbol. In some embodiments, each replacement symbol comprises a configurable symbol including a common component and a variable component.