The concept of the metaverse, representing a cutting-edge virtual reality paradigm, has gained significant traction as a mode of communication and data acquisition within virtual environments, applied across diverse domains. This study investigates the utilization of a metaverse-based platform in environmental behavior analysis, focusing on wayfinding behavior. We developed a metaverse-based platform for the Satellite Terminal 1 (S1) of Shanghai Pudong International Airport (PVG), offering participants an immersive and intuitive virtual environment. Leveraging the serious game concept, we designed a wayfinding task, through which 2,746 wayfinding trajectory data were collected for performance evaluation purposes. Notably, this metaverse-based platform presents a feasible and efficient approach for studying wayfinding behavior and streamlining data collection processes.