Physicality is a Japanese Yume Nikki fangame. You play as Katatsuki, a young boy who shut himself in. Like most fangame protagonists, Katatsuki refuses to leave his room and prefers to explore his dreams instead of reality.

Physicality is a very traditional fangame, so many of its aspects are related to events/locations/themes in the original Yume Nikki. It features bright, childish and colorful themes along with dark, violent and bizarre ones. It has three endings.