Yunyun Syndrome!? Rhythm Psychosis

Developer

Alliance Arts, WHO YOU

Publisher

Alliance Arts

Release

Released · Apr 23, 2026

Genres

Adventure · Indie · Simulation

Steam tags

Rhythm · Psychological Horror · Anime · Cute · Music · Visual Novel · Multiple Endings · Adventure · Female Protagonist · Simulation · Singleplayer · Psychological · Indie · Funny · 2D · Immersive Sim · LGBTQ+ · Story Rich · Choices Matter · Casual

Platforms

Windows

“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.