Museum Sandi as the only cryptology museum in Indonesia and Asia has an educational tourism function, but faces challenges, namely low interest and number of tourists so development is needed. The purpose of this study is to identify the typology of tourists and analyze tourist satisfaction with the Museum Sandi tourist attraction. This research uses exploratory quantitative research methods with data collection techniques, namely surveys on 386 tourists, data analysis using descriptive statistics and IPA (Importance Performance Analysis) methods. The results of this study are in the form of a typology of tourists who are dominated by groups of tourists with explorer types, namely tourists with a focus on finding unique tourism experiences and minimal travel planning. The satisfaction analysis using the IPA method produces attractions in quadrant A (top priority), namely the showing of documentary videos on the history of coding; quadrant B (maintain achievement), namely the collection of historical coding objects, the layout of the exhibition space, museum tour activities, and playing Sandi Caesar games by the guide; quadrant C (low priority), namely workshop and event activities, merchandise; and no attractions were found in quadrant D (attractions that were considered excessive). The level of satisfaction with tourist attractions at Museum Sandi, as a whole, is stated in the satisfied. The implications of research in the field produce development recommendations for Museum Sandi tourism managers, namely conducting destination branding by strengthening educational promotional content, developing documentary video attractions, workshops, and regular events, and providing structured tour packages.