WSS playground

Yunyun Syndrome!?: Rhythm Psychosis

“Yunyun Syndrome!? Rhythm Psychosis” is a rhythm adventure game about a psychotic hikikomori girl - also an avid anonymous poster - who corrupts the world with her severe brain rot from listening to too many denpa songs. Yunyun all over this world with your degen otaku-posting.

Released: 23 April 2026
Developer: WSS playground
Publisher: WSS playground
Engine: Unity
Steam recommendations: 3,914
Platforms: PC (Microsoft Windows)
Genres: Music · Simulator · Indie · Visual Novel