"异象回声" is an urban detective strategy game set in the fictional city of Cold Mountain, where players take on the role of a department head tasked with investigating a series of bizarre phenomena. The game features unique elements such as infinite looping rooms, ghostly train stations, and mysterious entities, all contributing to an intriguing narrative that invites players to uncover hidden truths.

Players can strategically assemble a team of agents to navigate through various anomaly scenarios, utilizing tactical advantages from terrain cover and counterattacks. The game also includes a generous feature of 99 undo moves per battle, allowing players to correct mistakes and enjoy a seamless gameplay experience. With its retro 1980s aesthetic, dynamic character illustrations, and immersive voice acting, "异象回声" offers a captivating blend of engaging storytelling and strategic gameplay.