This article identifies and theorizes a significant paradigm shift within the Chinese entertainment industry: the ‘immersive turn’ in escape-room design. Moving beyond the established model of sequential puzzle-solving, a new generation of premium Chinese escape rooms – exemplified by UMEPLAY’s ‘Tape Series’ – prioritizes narrative atmosphere, emotional engagement, and multi-sensory scenography. This study argues that this evolution is not merely a commercial upgrade but constitutes a legitimate form of postdramatic theatre practice, as conceptualized by Hans-Thies Lehmann. Through a detailed performance analysis of UMEPLAY’s ‘Abeille’, supported by designer interviews and participant observation, the paper demonstrates how these environments operate through a postdramatic paradigm: they decentre linear narrative in favour of fragmented, atmospheric storytelling; transform architectural space into an active, performative force; and reconfigure participants as ‘performing spectators’ whose embodied actions complete the work. The analysis further examines the tension between curated experience and perceived agency, and confronts the implications of a commercially driven, popular postdramatic form. Ultimately, this research seeks to contribute a new theoretical framework for analyzing hybrid immersive experiences, expand the geographical and cultural scope of postdramatic performance studies, and posit the Chinese immersive escape room as a vital site for understanding the evolving boundaries between theatre, game, and experiential consumption in the twenty-first century.