Patent attributes
According to some implementations, when an expansion trigger symbol lands in a defined area of a slot game display during an instance of a slot game, at least one additional active display symbol position will be presented in a display symbol row or a display symbol column in which the expansion trigger symbol is displayed. The defined area may correspond to some or all of the active display symbol positions, depending on the particular implementation. In some instances, an award enhancement trigger symbol may be presented in at least one of the active display symbol positions, e.g., in the same display symbol row or display symbol column in which the expansion trigger symbol is or was displayed. One or more enhanced award symbols may be presented in a row or column of active display symbol positions in which the award enhancement trigger symbol is presented.