Embodiments of the invention provide apparatuses, computer media, and methods for supporting lifestyle-reward health games, in which execution is altered based on health behavior of the participant. Input data indicative of the health behavior is obtained and converted into a gaming parameter. The gaming parameter is applied to the lifestyle-reward health game in order to alter the execution of the lifestyle-reward health game. A reward parameter for the participant may be determined based on a utility function, and the reward parameter is invoked when the participant is playing the life-reward health game. Feedback to the participant may be incorporated during the execution of the lifestyle-reward health game, where the feedback is indicative of the participant's health behavior. An avatar may be depicted during execution of the lifestyle-reward health game to illustrate a predicted health condition, in which the depiction is altered by changing the timeframe of the predicted health condition.