Indie

Yunyun Syndrome!? Rhythm Psychosis

91% positive of 4,067 Steam reviews

Main story: Unknown
Everything: Unknown
Released: 2026
Steam Deck: Playable
Known on: Steam

Made by Alliance Arts, WHO YOU. Published by Alliance Arts.

About the game

“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.

What sets it apart

Rhythm
Music
Psychological Horror
Multiple Endings
Visual Novel
Psychological
Anime
Cute
Female Protagonist
Immersive Sim
LGBTQ+
Simulation

What players say

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Indie

Yunyun Syndrome!? Rhythm Psychosis

91% positive of 4,067 Steam reviews

See it on Steam

Main story: Unknown
Everything: Unknown
Released: 2026
Steam Deck: Playable
Known on: Steam

Made by Alliance Arts, WHO YOU. Published by Alliance Arts.

About the game

What sets it apart

Rhythm
Music
Psychological Horror
Multiple Endings
Visual Novel
Psychological
Anime
Cute
Female Protagonist
Immersive Sim
LGBTQ+
Simulation

What players say

Recommended
A rhythm game, where you have to hit 4 different keys to the beat of the song playing, as usual. The story is very chaotic. It's all about internet conspiracies and the hikikomori lifestyle. At least the 2 characters are fun, and the visuals are nice. The translation is not the best, but it's enough to understand most of it. Progressing this game is also a bit confusing, and so is getting all achievements. The song…
30 h played when written. 5 found it helpful.
Read on Steam
Recommended
Who is Yunyun? For the lost, she is the vision. For the hungry, she is the chef. For the thirsty, she is water. If Yunyun thinks, I agree. If Yunyun SENDS, I RECEIVE. If Yunyun has a milion fans, I am one of them. If Yunyun has ten fans, I am one of them. If Yunyun has only one fan, that is me. If Yunyun has no fans, I no longer exist on this earth. If the whole world is against Yunyun, I am against the whole world.…
9.5 h played when written. 1 found it helpful.
Read on Steam
Not recommended
I saw that this game was similar to Needy Streamer Overload, and also a rhythm game. But, as a huge fan of NSO and Project DIVA this game didn't really appeal to me, a lot of the dialogue was kind of cringe, I only recognised like 4 songs, and it doesn't have any Vocaloid songs or even Cubism/Cubibibism. It also seems to lack an edit mode or any way of making your own charts. I will say that the art was cute and the…
6.4 h played when written. 1 found it helpful.
Read on Steam