Abstract: Innovations in user interface (“UI”) features of an electronic gaming device, and in features of backend processing to implement the UI features, are presented. For example, control logic selects active reels, which include side reels and main reels. Compared to the main reels, the side reels typically include symbols of greater interest to a user. The control logic also selects a subset of the active reels. The control logic spins at least some of the active reels on a display screen of the device. The control logic shifts some active reels into a reel area while shifting other active reels out of the reel area, before stopping at the subset of the active reels. Reel shifting can increase game volatility while maintaining a designated level of return to player.

Abstract: Innovations in user interface (“UI”) features of an electronic gaming device, and in features of backend processing to implement the UI features, are presented. For example, control logic selects symbols to be displayed for dynamic symbols for reel strips used in the electronic gaming device. The symbols selected to be displayed for dynamic symbols differ between game types. An electronic gaming machine can be associated with different gameplay divisions, such as different wager levels. Different gameplay divisions can be associated with different states, such as being in a base game mode or a special event mode, or having different numbers of spins remaining in a special event mode. A user can switch between gameplay divisions, where a state is resumed when a user switches to a different gameplay division.

Abstract: A credit-substitution symbol mechanic for a gaming device is described. The credit-substitution symbol mechanic randomly triggers an add-substitution symbol feature in a game instance with an initial reel area and randomly determines an expanded reel size for a plurality of reels to be displayed in an expanded reel area. The credit-substitution symbol mechanic randomly determines a substitution symbol to be added to a first reel of the plurality of reels and randomly determines the substitution symbol is a credit-substitution symbol. The credit-substitution symbol mechanic determines that the credit-substitution symbol is part of a payline. The credit-substitution symbol mechanic performs a first payout for the payline that pays out a payline award and performs a second payout for the payline that pays out a credit value of the credit-substitution symbol.

Abstract: A credit-substitution symbol mechanic for a gaming device is described. The credit-substitution symbol mechanic randomly triggers an add-substitution symbol feature in a game instance with an initial reel area and randomly determines an expanded reel size for a plurality of reels to be displayed in an expanded reel area. The credit-substitution symbol mechanic randomly determines a substitution symbol to be added to a first reel of the plurality of reels and randomly determines the substitution symbol is a credit-substitution symbol. The credit-substitution symbol mechanic determines that the credit-substitution symbol is part of a payline. The credit-substitution symbol mechanic performs a first payout for the payline that pays out a payline award and performs a second payout for the payline that pays out a credit value of the credit-substitution symbol.

Abstract: Innovations in user interface (“UI”) features of an electronic gaming device, and in features of backend processing to implement the UI features, are presented. For example, control logic selects symbols to be displayed for dynamic symbols for reel strips used in the electronic gaming device. The symbols selected to be displayed for dynamic symbols differ between game types. An electronic gaming machine can be associated with different gameplay divisions, such as different wager levels. Different gameplay divisions can be associated with different states, such as being in a base game mode or a special event mode, or having different numbers of spins remaining in a special event mode. A user can switch between gameplay divisions, where a state is resumed when a user switches to a different gameplay division.

Abstract: Innovations in user interface (“UI”) features of an electronic gaming device, and in features of backend processing to implement the UI features, are presented. For example, control logic selects symbols to be displayed for dynamic symbols for reel strips used in the electronic gaming device. The symbols selected to be displayed for dynamic symbols differ between game types. An electronic gaming machine can be associated with different gameplay divisions, such as different wager levels. Different gameplay divisions can be associated with different states, such as being in a base game mode or a special event mode, or having different numbers of spins remaining in a special event mode. A user can switch between gameplay divisions, where a state is resumed when a user switches to a different gameplay division.

Abstract: A gaming device is provided. The gaming device may be configured to, determine that at least a first base prize symbol is displayed in a first matrix position of a matrix of a game display, the first base prize symbol being associated with a first prize amount, cause the game display to display, in the first matrix position, a first transparent prize symbol, the first transparent prize symbol being associated with the first prize amount, in response to a bonus game instance, generate at least one special symbol in the matrix, determine that the at least one special symbol is displayed in the first matrix position that includes the first transparent prize symbol, and display a second transparent prize symbol in the first matrix position, the second transparent prize symbol being associated with a second prize amount greater than the first prize amount.

Abstract: Embodiments of the disclosed technology comprise advancements to electronic gaming machines. In particular embodiments, when a bonus feature is activated and, as part of the bonus feature, a sub-feature is selected from among multiple available sub-features. The bonus feature can include one or more sub-features that trigger a further secondary RNG selection. For example, the one or more sub-features can include one or more of (a) a credit awarding secondary feature in which a secondary RNG is applied to select the amount of credits; (b) a free-spin secondary feature in which one or more free games can be awarded; and/or (c) a reel-spin feature in which an enhanced reward scheme is applied. In further embodiments, the reel-spin feature can further include a random selection of a threshold that ensures the player the threshold amount until it is exceeded by the game mechanics.

Abstract: A method may include determining a first base game outcome of a first instance of a base game; controlling a display system to present the first base game outcome in a first window of one or more display devices of the display system; and in response determining whether a first feature game trigger condition of a feature game exist. Then in response to this determining, controlling the display system to present a first feature game in a second window of the one or more display devices concurrently with presenting the base game in the first window of the one or more display devices; determining a second base game outcome of a second instance of the base game; determining a first feature game outcome of a first instance of the feature game; controlling the display system to present the second base game outcome in the first window; and controlling the display system to present the first feature game outcome in the second window.

Abstract: A method may include determining a first base game outcome of a first instance of a base game; controlling a display system to present the first base game outcome in a first window of one or more display devices of the display system; and in response determining whether a first feature game trigger condition of a feature game exist. Then in response to this determining, controlling the display system to present a first feature game in a second window of the one or more display devices concurrently with presenting the base game in the first window of the one or more display devices; determining a second base game outcome of a second instance of the base game; determining a first feature game outcome of a first instance of the feature game; controlling the display system to present the second base game outcome in the first window; and controlling the display system to present the first feature game outcome in the second window.

Abstract: Innovations in user interface (“UI”) features of an electronic gaming device, and in features of backend processing to implement the UI features, are presented. For example, control logic selects active reels, which include side reels and main reels. Compared to the main reels, the side reels typically include symbols of greater interest to a user. The control logic also selects a subset of the active reels. The control logic spins at least some of the active reels on a display screen of the device. The control logic shifts some active reels into a reel area while shifting other active reels out of the reel area, before stopping at the subset of the active reels. Reel shifting can increase game volatility while maintaining a designated level of return to player. At the same time, by selecting side reels and reels within the reel area when shifting stops, outcomes can satisfy regulations.

Abstract: A credit-substitution symbol mechanic for a gaming device is described. The credit-substitution symbol mechanic randomly triggers an add-substitution symbol feature in a game instance with an initial reel area and randomly determines an expanded reel size for a plurality of reels to be displayed in an expanded reel area. The credit-substitution symbol mechanic randomly determines a substitution symbol to be added to a first reel of the plurality of reels and randomly determines the substitution symbol is a credit-substitution symbol. The credit-substitution symbol mechanic determines that the credit-substitution symbol is part of a payline. The credit-substitution symbol mechanic performs a first payout for the payline that pays out a payline award and performs a second payout for the payline that pays out a credit value of the credit-substitution symbol.

Abstract: A method of merging a plurality of games into a single game on a gaming machine. A display displays first and second games. A game controller determines if a wager has been placed, and if the wager placed includes a base game wager and a game enhancement wager. Upon determining that the wager placed includes a base game wager and a game enhancement wager, the game controller merges the first and second games and a plurality of display positions into a merged game. The merged game selects symbols from the first game and the second game.

Abstract: Embodiments of the disclosed technology comprise advancements to electronic gaming machines. In particular embodiments, when a bonus feature is activated and, as part of the bonus feature, a sub-feature is selected from among multiple available sub-features. The bonus feature can include one or more sub-features that trigger a further secondary RNG selection. For example, the one or more sub-features can include one or more of (a) a credit awarding secondary feature in which a secondary RNG is applied to select the amount of credits; (b) a free-spin secondary feature in which one or more free games can be awarded; and/or (c) a reel-spin feature in which an enhanced reward scheme is applied. In further embodiments, the reel-spin feature can further include a random selection of a threshold that ensures the player the threshold amount until it is exceeded by the game mechanics.

Abstract: A method may include determining a first base game outcome of a first instance of a base game; controlling a display system to present the first base game outcome in a first window of one or more display devices of the display system; and in response determining whether a first feature game trigger condition of a feature game exist. Then in response to this determining, controlling the display system to present a first feature game in a second window of the one or more display devices concurrently with presenting the base game in the first window of the one or more display devices; determining a second base game outcome of a second instance of the base game; determining a first feature game outcome of a first instance of the feature game; controlling the display system to present the second base game outcome in the first window; and controlling the display system to present the first feature game outcome in the second window.

Abstract: Innovations in user interface (“UI”) features of an electronic gaming device, and in features of backend processing to implement the UI features, are presented. For example, control logic selects symbols to be displayed for dynamic symbols for reel strips used in the electronic gaming device. The symbols selected to be displayed for dynamic symbols differ between game types. An electronic gaming machine can be associated with different gameplay divisions, such as different wager levels. Different gameplay divisions can be associated with different states, such as being in a base game mode or a special event mode, or having different numbers of spins remaining in a special event mode. A user can switch between gameplay divisions, where a state is resumed when a user switches to a different gameplay division.

Abstract: Innovations in user interface (“UI”) features of an electronic gaming device, and in features of backend processing to implement the UI features, are presented. For example, control logic selects active reels, which include side reels and main reels. Compared to the main reels, the side reels typically include symbols of greater interest to a user. The control logic also selects a subset of the active reels. The control logic spins at least some of the active reels on a display screen of the device. The control logic shifts some active reels into a reel area while shifting other active reels out of the reel area, before stopping at the subset of the active reels. Reel shifting can increase game volatility while maintaining a designated level of return to player. At the same time, by selecting side reels and reels within the reel area when shifting stops, outcomes can satisfy regulations.

Abstract: Innovations in user interface (“UI”) features of an electronic gaming device, and in features of backend processing to implement the UI features, are presented. For example, control logic selects symbols to be displayed for dynamic symbols for reel strips used in the electronic gaming device. The symbols selected to be displayed for dynamic symbols differ between game types. An electronic gaming machine can be associated with different gameplay divisions, such as different wager levels. Different gameplay divisions can be associated with different states, such as being in a base game mode or a special event mode, or having different numbers of spins remaining in a special event mode. A user can switch between gameplay divisions, where a state is resumed when a user switches to a different gameplay division.

Abstract: Embodiments of the disclosed technology comprise advancements to electronic gaming machines. In particular embodiments, when a bonus feature is activated and, as part of the bonus feature, a sub-feature is selected from among multiple available sub-features. The bonus feature can include one or more sub-features that trigger a further secondary RNG selection. For example, the one or more sub-features can include one or more of (a) a credit awarding secondary feature in which a secondary RNG is applied to select the amount of credits; (b) a free-spin secondary feature in which one or more free games can be awarded; and/or (c) a reel-spin feature in which an enhanced reward scheme is applied. In further embodiments, the reel-spin feature can further include a random selection of a threshold that ensures the player the threshold amount until it is exceeded by the game mechanics.

Abstract: An electronic gaming system includes a game controller configured to control a display device to present a game area, where the game area is configured to display a plurality of reel strips. Further, the game controller may select a reel layout for at least one reel strip, where the selected reel layout specifies a size of at least one oversized symbol and a location of the at least one oversized symbol on the symbol display positions of the at least one reel strip. In addition, the game controller may select a first oversized symbol corresponding to the size of the at least one oversized symbol specified by the selected reel layout, and/or add the first oversized symbol to the at least one reel strip at the location specified by the reel layout.