Purpose: Traditional evacuation drill is monotonous. Therefore, evacuation drill should be diversified to get more people interested in disaster prevention. Our idea is game-based evacuation drill using real world edutainment (RWE). This paper aims at clarifying how RWE-based evacuation drill is realized. Design/methodology/approach: RWE provides experiential learning as the integration of edutainment and the real world. An RWE system works on a tablet PC and presents digital contents associated with learning scenes (e.g. real world locations) according to a branched storyline. Findings: Story (branched storyline), indirect/direct competition, and augmented reality content provide multi-ending and flexible instructional support and are helpful for diversifying evacuation drill. Research limitations/implications: RWE-based evacuation drill could be accepted by more people, but a branched storyline should be carefully refined to achieve maximum effect. Social implications: RWE-based evacuation drill could open up diversification of disaster prevention education. Originality/value: The originality of this study is to integrate edutainment, the real world, and evacuation drill. In the long run, this study could be helpful to save lives when a natural catastrophe (e.g. large earthquake) occurs.