US Patent 10102710 Games and gaming machines having prizes triggered by expanding reels

In a game event a first set of game symbols are displayed in a game symbol display area, at least one prize is displayed in a prize display area, and an expanded second set of game symbols having at least one game symbol located in the prize display area is displayed. A winning game outcome may be declared if at least one game symbol located in the prize display area contacts at least one prize which is displayed in the prize display area. The game event may be presented via a uniquely configured gaming machine or system in which the game symbols and prizes are generated and displayed as graphical elements on a video display. The game event may be presented as or as part of a wagering event.