Abstract: A gaming device may be configured for receiving, via a user interface, user input corresponding to a request for play of a gambling game and for determining whether the gambling game is a base game or a sub game. Upon determining that the gambling game is a sub game, the gaming device may be configured for controlling a display system to provide a sequence of images corresponding to an instance of the sub game, for determining sub game data and sub game metadata corresponding to the instance of the sub game, for adding a sub game trace to a game history data structure corresponding to the sub game data and the sub game metadata and for adding a game round index marker to the game history data structure corresponding to the instance of the sub game.

Abstract: A gaming device may be configured for receiving, via a user interface, user input corresponding to a request for play of a gambling game and for determining whether the gambling game is a base game or a sub game. Upon determining that the gambling game is a sub game, the gaming device may be configured for controlling a display system to provide a sequence of images corresponding to an instance of the sub game, for determining sub game data and sub game metadata corresponding to the instance of the sub game, for adding a sub game trace to a game history data structure corresponding to the sub game data and the sub game metadata and for adding a game round index marker to the game history data structure corresponding to the instance of the sub game.

Abstract: A gaming device may be configured for receiving, via a user interface, user input corresponding to a request for play of a gambling game and for determining whether the gambling game is a base game or a sub game. Upon determining that the gambling game is a sub game, the gaming device may be configured for controlling a display system to provide a sequence of images corresponding to an instance of the sub game, for determining sub game data and sub game metadata corresponding to the instance of the sub game, for adding a sub game trace to a game history data structure corresponding to the sub game data and the sub game metadata and for adding a game round index marker to the game history data structure corresponding to the instance of the sub game.

Abstract: A method of replay of a gambling game may involve receiving user input corresponding to a request for replay of the gambling game. The request may include a game round indication pertaining to an individual free game from within a feature game comprising a plurality of free games. The method may involve querying a game history data structure and retrieving game round metadata corresponding to the individual free game. The method may involve controlling a display to provide a sequence of images corresponding to the game round metadata. The sequence of images may correspond to a replay of the individual free game.