A gaming machine provides a base game, from which a spin and hold feature game is triggered when a determined number of configurable symbols are displayed in a base game outcome. When the feature game is triggered, the configurable symbols are held in place on the display and the player is provided more spins during the feature game in which to collect additional configurable symbols. Any additional configurable symbols are retained on the display during subsequent spins until the feature game is completed. At the end of the feature game, the player is awarded a prize based on the values carried by the configurable symbols. During play of the feature game, the configurable symbols include repeater symbols whose value is determined by summing the values of the configurable symbols that triggered the feature game.