Gingerman challenge: a persuasive game for promoting adequate sunlight exposure for office workers

In this paper, we present Gingerman Challenge, which is a persuasive mobile game designed to promote moderate sunlight exposure. The design goals of Gingerman Challenge are to help players to recognize the merits of sunlight exposure and to promote maintenance of healthy vitamin D levels. We aim to accomplish these goals by incorporating both casual gaming features and the design principles drawn from preliminary user interviews.