This study investigates how playersā secondary creations in the *Justice Online* (éę°“åÆ) Weibo Super Topic interact with algorithmic mechanisms to construct a digital community that merges emotional belonging and creative expression. Drawing on participatory culture (Jenkins, 2006) and platform society theory (Lindgren, 2022), the Super Topic is conceptualized as a ācurated third spaceā shaped by algorithmic visibility, affective labor, and networked publics. Using digital ethnography and thematic analysis of 150 key posts, the research reveals that secondary creation functions both as emotional projection and as a visibility practice shaped by Weiboās gamified features such as daily check-ins, ranking systems, and algorithmic recommendation. These mechanisms foster community vitality but also reinforce hierarchies and content homogenization. Meanwhile, affective discourses like āfamilyā and āfellow fansā sustain a sense of belonging. The study highlights how, in the Chinese platform context, user creativity, platform governance, and commercial capital converge to produce a culturally localized form of participatory practice mediated by algorithms. Ver mais