Gaming machine and method for integrating new bonus schemes to existing games

A method of providing multiple game results at an electronic gaming machine, the method conducted under control of one or more electronic processors executing program code at the gaming machine, the method comprising:

• providing a base game module approved by regulators to operate as a casino slot machine game;
• providing an add-on bonus game module approved by regulators to operate as a casino slot machine game independently of the base game module;
• instantiating a first prize generator for the base game module;
• instantiating a second prize generator for the add-on bonus game module independent of the first prize generator;
• instantiating a game engine configured to perform game execution for both the base game module and add-on bonus module;
• receiving a wager input from a player with an associated wager amount and crediting a first portion of the wager amount to a base game wager and a second portion of the wager amount to an add-on bonus game wager;
• producing a base game prize amount with the first prize generator and displaying a base game round being conducted to produce the base game prize amount using program code and graphics from the base game module;
• producing an add-on bonus game prize amount with the second prize generator and, immediately following displaying the base game round being conducted, displaying an add-on bonus game round being conducted to produce the add-on bonus game prize amount using program code and graphics from the add-on bonus game module;
• causing an award including money value credits won to be transferred to a player credit account redeemable for money value;
• and
• calculating combined totals of the base game and add-on bonus game wagers and the base game and add-on bonus game awards, and reporting the combined totals to a system accounting service as a single game wager and result.

A gaming machine comprising:

• a cabinet holding one or more video displays;
• an electronic controller operatively coupled to control the one or more video displays and one or more tangible, non-transitory computer media operatively coupled to the controller;
• a credit input device in communication with the controller and adapted for accepting a physical item associated with a monetary value that establishes a player credit balance;
• a plurality of player-activated input devices in communication with the controller for setting wagers covered by the credit balance and initiating games for determining the outcomes of the wagers;
• a base game module stored in at least one of the computer readable media, the base game module approved by regulators to operate as a casino slot machine game;
• an add-on bonus game module stored in at least one of the computer readable media, the add-on bonus game module approved by regulators to operate as a casino slot machine game independently of the base game module;
• game management program code stored in at least one of the computer readable media and executable by the controller for instantiating a first prize generator for the base game module and instantiating a second prize generator for the add-on bonus game module independent of the first prize generator;
• game engine program code stored in at least one of the computer readable media and executable by the controller to perform game execution for both the base game module and add-on bonus module including:
• (a) receiving a wager input from a player with an associated wager amount and crediting a first portion of the wager amount to a base game wager and a second portion of the wager amount to an add-on bonus game wager;
• (b) producing a base game prize amount with the first prize generator and displaying a base game round being conducted to produce the base game prize amount using program code and graphics from the base game module;
• (c) producing an add-on bonus game prize amount with the second prize generator and, immediately following displaying the base game round being conducted, displaying an add-on bonus game round being conducted to produce the add-on bonus game prize amount using program code and graphics from the add-on bonus game module;
• (d) causing an award including money value credits won to be transferred to a player credit account redeemable for money value;
• and
• (e) calculating combined totals of the base game and add-on bonus game wagers and the base game and add-on bonus game awards, and reporting the combined totals to a system accounting service as a single game wager and result.