Patent ID: 9098976
Filing Date: 2015-08-04
Classification: G07F

Abstract:
1. A method performed by a slot machine comprising: receiving, by the slot machine, a monetary wager made by a player via a wager input device as part of the slot machine; receiving, by the slot machine, a game initiation signal by the player controlling a game initiation device, as part of the slot machine, to initiate a game; in response to receiving the game initiation signal, controlling a display, as part of the slot machine, by a processor to visibly display, in a base game, a first array of symbols in an array of symbol positions that have been randomly selected, certain combinations of symbols along one or more displayed paylines providing an award for a player, available symbols for being randomly selected including a plurality of different types of special symbols, each type of special symbol being associated with a certain number of free games and an award multiplier, the award multiplier including multipliers greater than one, wherein each type of special symbol is associated with a unique combination of free games and award multiplier, so different types of the special symbols are not associated with a same combination of free games and award multiplier, and wherein there are a variety of different numbers of free games associated with the different types of special symbols and a variety of different award multipliers associated with the different types of special symbols; detecting a trigger event in the base game by the processor, the trigger event comprising the display of a certain plurality of the special symbols in the first array; as a result of the trigger event, awarding the player a number of free games, to be played on the slot machine, associated with each type of special symbol displayed in the first array; after the base game, playing the free games awarded as a result of the trigger event, each free game being associated with a particular type of special symbol that identifies the number of free games; multiplying any award won in a free game prior to a next free game being played, due to an occurrence of a winning display of symbols, by an award multiplier associated with the particular type of special symbol that is associated with the free game; and receiving a cash out signal by the player controlling a cash out device, as part of the slot machine, to cash out any accumulated awards.