How Deep Is the Dark Water? (乌水有多深？) is an experimental game that imagines a cross-strait war. The player, guided by a fleeing man, slowly wanders through memories and visions constructed by the context of the war and individual experiences. At the same time, the player finds another layer of meaning of war for individuals, cultures and nations by discovering the messages hidden in each scene. As a response to the tensions in the world, this work does not directly portray war, but tries to let the player feel the separation, fear, violence and trauma of war in the process of chasing the fleeing man. How Deep Is the Dark Water? explores the ability of video games to mediate reading and affect, guiding the player with cinematic interactivity and connecting the act of “wandering” in video games with the individual feelings in the time of war.