An electronic gaming machine that provides a gambling game and an entertainment game, including: a real world engine, an entertainment software engine, and a game world engine; the system constructed to provide a randomly generated payout of real world credit from a wager in a gambling game, wagers triggered during an entertainment game; and to collect parameter data indicative of player performance during the player's skillful execution of the entertainment game at each of a plurality of difficulty settings, the parameter data indicative of the player's actions during the player's skillful execution of the entertainment game and indicative of a rate of accumulation of game world credit during the entertainment game; and select a difficulty setting from the plurality of difficulty settings for the skill based entertainment game based upon the collected parameter data.