Abstract: An electronic gaming machine comprising a video display and a game controller arranged to select a plurality of symbols from a symbol set for display on the video display, evaluate the symbols displayed on the display to determine whether to initiate a symbol lock event, and upon initiating a symbol lock event, identify symbols which contribute to an award configuration, control the display to lock identified symbols, and updating remaining symbols in the display.

Abstract: Certain examples disclose a gaming system comprising a display, a symbol selector, a symbol evaluator and a symbol modifier. The example symbol selector is arranged to select a plurality of sets of symbols for display on the display. The example symbol evaluator is arranged to determine whether the displayed symbols include any winning symbol combination. The example symbol modifier is arranged to, upon a determination that the displayed symbols include any winning symbol combination, repeatedly apply a modification rule to at least one of the plurality of sets of symbols until the displayed symbols do not include any winning symbol combination.

Abstract: A gaming system in which at least one symbol is selected for display in at least one but not all of a plurality of display position groups. The player indicates whether to keep the symbols displayed in the first set of display position groups before symbols are selected for a second set of display position groups. If not kept, symbols are re-selected for the first set of display position groups. Symbols are then selected for display in the second set of display position groups.

Abstract: A gaming system is provided, the gaming system including a plurality of reels, each reel having a plurality of display positions at which symbols can be positioned for display. The gaming system further includes a reel display controller arranged so as to reveal symbols that are positioned at display positions of at least one reel to a player, or to hide symbols that are positioned at the display positions of the at least one reel from the player. The gaming system is arranged to spin the reels in an initial spin, during which symbols positioned at the display positions of the at least one reel are revealed. The gaming system is then arranged to reposition the at least one reel after the initial spin and while symbols positioned at the display positions of the at least one reel are hidden and to reveal symbols displayed at the display positions of the at least one reel after the at least one reel has been repositioned.

Abstract: Certain examples disclose a gaming system comprising a display, a symbol selector, a symbol evaluator and a symbol modifier. The example symbol selector is arranged to select a plurality of sets of symbols for display on the display. The example symbol evaluator is arranged to determine whether the displayed symbols include any winning symbol combination. The example symbol modifier is arranged to, upon a determination that the displayed symbols include any winning symbol combination, repeatedly apply a modification rule to at least one of the plurality of sets of symbols until the displayed symbols do not include any winning symbol combination.