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AdventureIndieSimulationRhythmPsychological HorrorAnimeCuteMusic
Yunyun Syndrome!? Rhythm Psychosis Steam store
Game description
“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.
Basic info
| Developer | Alliance Arts, WHO YOU |
|---|---|
| Publisher | Alliance Arts |
| Platforms | Windows |
| Steam Deck | Playable! |
| Release date | Apr 23, 2026 |
| Price |
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Minimum specs
| OS | Windows 10, 11 (64bit) |
|---|---|
| Processor | Core™ i5-9400 |
| Memory | 8 GB |
| Graphics | GeForce® GTX 1050 Ti 4GB |
| Storage | 3 GB |
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Review Analysis Score
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Steam review activity
since launch, by week · major update DLC
Apr 24, 2026Oct 30, 2026
per day · 197 reviews, peak 16/day
Oct 5Nov 2
per week · 498 reviews, peak 67/week
Jul 31, 2026Oct 23, 2026
per week · 2,612 reviews, peak 538/week
May 1, 2026Oct 23, 2026
per week · 4,348 reviews, peak 1,736/week
Apr 24, 2026Oct 23, 2026
Steam only gives daily counts for the last 30 days; longer ranges are by week. Months with fewer than 10 reviews are left out of % positive. "Show updates" marks major updates and DLC the developer posted on Steam (since about 2020) — hover a column to see % positive the week before and after.