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The OuterhavenThe Outerhaven
Home»News»Gaming News»Yunyun Syndrome!? Rhythm Psychosis Gets Steam Next Fest Demo

Yunyun Syndrome!? Rhythm Psychosis Gets Steam Next Fest Demo

By Scott AdamsOctober 10, 2025
Key art of Yunyun Syndrome!? Rhythm Psychosis

Publisher Alliance Arts and Developer WSS Playground are currently developing a new game called Yunyun Syndrome!? Rhythm Psychosis. You must match the rhythm of the game as your character, Qtie, spreads chaos on the internet. The demo itself will be about 30 minutes long, but you can still play after you finish the demo. There is a total of 10 songs in the demo that has just been released and will be available for the whole month of October.

““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, a type of Japanese music that is intentionally strange and catchy.” Qtie poses as Yunyun to spread chaos online.

You can download the demo for Yunyun Syndrome!? Rhythm Psychosis on the Steam store.

Source: Press Release

Alliance arts Steam Next Fest Yunyun Syndrome!? Rhythm Psychosis
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Scott Adams
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Scott Adams has been a strong lover of video games, mainly RPGS, for 20 years. He typically writes about the video games he loves, also reviews many of them, and he is a regular on the Nintendo Entertainment Podcast.

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