Researchers and practitioners have developed various gaming and simulation tools for disaster risk management (DRM), offering a range of features from metaphorical and abstract to context-specific. In Japan, various gaming and simulation tools are employed for community-based DRM. However, limited evidence demonstrates how gaming and simulation can effectively influence community-based DRM in practice. This chapter introduces our efforts spanning over 10 years to apply gaming and simulation to local communities. It begins by highlighting the widespread recognition of certain gaming and simulation methods in Japan. From an academic perspective, the chapter illustrates the strengths of gaming and simulation for community-based DRM. Next, three case studies conducted in Kyoto, Japan, are introduced, where gaming and simulation were utilized as part of community-based DRM activities to address different aspects of DRM: evacuation from houses to shelters and shelter management. Drawing from these case studies, the chapter summarizes the recommendations for connecting gaming and simulation to real risk management in local communities, particularly on securing the authority of main actors to conduct risk management out of gaming and simulation. Additionally, it emphasizes incorporating the process of local and scientific knowledge integration during the game design process or during or after debriefings. While these lessons might not be sufficient conditions, they serve as important indications for researchers and practitioners aiming to impact local communities through gaming and simulation.