A casino gaming system is disclosed that provides game play in exchange for monetary input per game played. The gaming system includes a casino game unit in which the casino game unit stores one or more games in electronic form. The casino game unit includes: a display screen for displaying images to a player; a monetary input system for receiving monetary input from a player; one or more player control devices for receiving player input; and a processor, wherein the processor executes game software and processes input from the player. The gaming system further includes computer readable media that stores casino game software in the game unit, and wherein computer readable media includes optically readable media.