Abstract: A gaming machine (10) has a display (14) and a game controller arranged to control images displayed on the display (14). The game controller is arranged to play a game wherein one or more random events arc caused to be displayed on the display (14) and, if a predefined winning event results, the machine (10) awards a prize which is credited to a credit meter of the machine (10). The credit meter includes two meter displays, a first meter display (42.1) indicating credit which is available for expenditure in the machine (10) to play at least one game and a second meter display (42.2) indicating credit set aside by at least one of a player and the game controller and which credit is unavailable to the player for wagering on a game but which is only available by termination of a playing session.