One Australian public university is radically changing the way it delivers higher education, introducing a 6-week immersive scheduling delivery model across all units and courses. Despite the emerging success of block and immersive models for raising the performance of diverse student cohorts, the design factors underpinning positive outcomes are underexplored. This paper presents a mixed methods study of the impact and value of student engagement with interactive and responsive online content modules and synchronous classes in an immersive scheduling model. The findings indicate that behavioural engagement with online learning modules has a positive effect on academic success and is a significant predictor of a higher final score. Qualitative data indicate several attributes of high-quality online learning modules that students appear to associate with engagement and deeper learning in the immersive model: interactivity, media richness, constructive alignment, flexibility and responsiveness. Synchronous class attendance did not impact final scores; however, students nonetheless valued the opportunity to form safe and supportive communities of inquiry during classes. This study demonstrates that in times of increasing demand for more flexible learning, immersive scheduling models that are founded on active learning principles and embed interactive, responsive, media-rich online learning modules can improve student engagement and performance.