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…
Yunyun Syndrome!?: Rhythm Psychosis is an indie developed by WHO YOU, released 23 April 2026 on PC (Microsoft Windows).
What Yunyun Syndrome!?: Rhythm Psychosis is
Yunyun Syndrome!?: Rhythm Psychosis is an indie game developed by WHO YOU and released in 2026. It was published by Alliance Arts. It is available on PC (Microsoft Windows) only. It runs on Unity.
The premise, in the publisher's words
“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.
How it plays
It is a single-player game with no multiplayer component.
What it launched against
Yunyun Syndrome!?: Rhythm Psychosis launched on 23 April 2026, within three weeks of Pragmata, Replaced, Directive 8020 and Saros.
Released around the same time: Pragmata, Replaced, Directive 8020, Saros.
Official trailer
Sourced from the publisher’s YouTube channel. See all 6 videos →
Screenshots
All media
Quick answers
Yunyun Syndrome!?: Rhythm Psychosis — frequently asked questions
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