Learning motivation and critical thinking skills are essential components of elementary school learning because they encourage students’ active engagement and support problem-solving abilities. However, in practice these aspects remain challenging, particularly when the learning process does not utilize interactive and engaging learning media. This study aims to develop and examine the feasibility, practicality, and effectiveness of the RUBELS ANAK interactive multimedia (Rumah Belajar Sosial Aktif nan Kreatif) in improving students’ learning motivation and critical thinking skills in social studies learning. This study employed a Research and Development (R&D) method using the Borg & Gall model. The research subjects consisted of two teachers and 98 fifth-grade elementary school students. Data were collected through observations, questionnaires, and critical thinking tests using instruments including expert validation sheets, teacher and student response questionnaires, a learning motivation questionnaire, and a critical thinking test. The data were analyzed using quantitative descriptive analysis, an independent samples t-test, and the N-gain test. The results indicate that the RUBELS ANAK interactive multimedia is categorized as very feasible based on expert validation, very practical based on user responses, and effective in improving students’ learning motivation and critical thinking skills. These findings imply that technology-based interactive multimedia can support teachers and learning media developers in designing more innovative and effective learning strategies.