i-MASTER datasets. The i-MASTER project is an EU funded project under grant agreement No. 101060107. The project's objective is to study and develop an AI-based intelligent learning system with learning analytics and adaptive learning function for students engaged in both remote (home-based) and on-site maritime simulator education and training. The project will give insights to simulation performances. The research will work on digitalised navigational performance assessments to provide unbiased student performance evaluation and to find new ways for students and instructors to understand the learning progress. The project has a series of deliverables to reach the project objectives. Many deliverables have collected data as part of the studies of the respective deliverables. The data collected are part of simulation scenarios, interviews, questionnaires etc. The i-MASTER project is an open to public project.The data collected are stored in a database and made available to the public and researchers for re-use. Each deliverable has a ReadMe file to make it easy for users to understand the link between the data and project.