This study adopted design fiction and co-design as the two main methodological approaches for designers and artists to explore the complex relationships and intersections of futuristic heritage experience and engagement. A literature-based seminar and a co-design workshop were conducted with 26 participants from multidisciplinary backgrounds, via Miro Board. A series of collaborative design practices and science fiction films were utilised as key media for propelling thinking, raising awareness or questions, provoking actions, inaugurating discussions, and offering alternatives necessary for a heritage setting. Additionally, this study reflects upon the complexities of using design fiction activities to re-think the technological future of heritage engagement and experience.