Artificial intelligence (AI) and machine learning (ML) education have become popular, and several AI and ML education games have been developed. However, most games focus on coding rather than AI/ML concepts and have not been widely used or evaluated (Alam. 2022). Therefore, we propose a "Roguelike Game for AI and ML Education" (RGAME) to overcome these problems. RGAME is being developed on the basis of motivational and educational design frameworks. Users can learn ML workflow (data collection, preprocessing, training, and evaluation) through RGAME. We then introduce a method for measuring motivational and learning effects. This study focuses on K–12 education in Japan.