Released Apr 23, 2026 $16.99 Very Positive Counts toward your Steam games

Yunyun Syndrome!? Rhythm Psychosis

By Alliance Arts

Rhythm Psychological Horror Anime Cute Music Visual Novel Multiple Endings Adventure Female ProtagonistSimulationSingleplayerPsychological

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Reviews 4,149 Very Positive

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Followers, 30 days — Not enough history yet

Yunyun Syndrome!? Rhythm Psychosis is a game tagged Rhythm, Psychological Horror and Anime by Alliance Arts, released Apr 23, 2026. It has 4,149 Steam reviews (Very Positive). The Steam games most like it include DODORI, Love Live! Nijigasaki High School Idol Club TOKIMEKI Roadmap to Future and 5omeday.

“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.

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<a href="https://launchrivals.com/games/2914150-yunyun-syndrome-rhythm-psychosis"><img src="https://launchrivals.com/games/2914150/badge.png" alt="Yunyun Syndrome!? Rhythm Psychosis launch date" width="320" height="84"></a>

<a href="https://launchrivals.com/games/2914150-yunyun-syndrome-rhythm-psychosis"><img src="https://launchrivals.com/games/2914150/badge.png?theme=light" alt="Yunyun Syndrome!? Rhythm Psychosis launch date" width="320" height="84"></a>

DODORI 90% match · Rhythm, Anime, Cute
Love Live! Nijigasaki High School Idol Club TOKIMEKI Roadmap to Future 71% match · Psychological Horror, Anime, Cute
5omeday 71% match · Psychological Horror, Anime, Cute
弥赛亚症候群/Messianic Syndrome 68% match · Rhythm, Anime, Cute
DEATH A LIVE 68% match · Rhythm, Psychological Horror, Anime
Pastel☆Parade 66% match · Rhythm, Anime, Cute
Alice's World 64% match · Psychological Horror, Anime, Cute
Sister Other Paranoia 63% match · Psychological Horror, Anime, Cute
You Broke My Sunshine 63% match · Psychological Horror, Anime, Cute
Shadow Album 62% match · Psychological Horror, Anime, Cute

Steam data

Everything Steam lists for Yunyun Syndrome!? Rhythm Psychosis · record updated 23 hours ago

Steam store

Overview

App ID2914150

Release dateApr 23, 2026

Last change number39988015

Last record update23 hours ago

App type: Game
Developer: Alliance Arts, WHO YOU
Publisher: Alliance Arts
Steam profile: Counts toward game count and achievement totals · checked Nov 1, 2025
Franchise: Alliance Arts
Technologies: Unity detected

Windows

Steam Deck: Playable
Controller: Partial support

Single-playerSteam AchievementsSteam CloudSteam LeaderboardsPartial controller supportPlayStation controllersXbox controllersPlayStation controller BluetoothFamily Sharing

Prices

Price · US$16.99

On sale0 of 41regions right now

Lowest seen · US$16.99Oct 25, 2026

Checked1 day agoin 41 regions

Israel₪ILS

Every price change is kept from Oct 25, 2026 on. Pick a region below to compare.

Patches

Build	Branch	Updated
25951807	public	Oct 15, 2026

Packages & DLC

ID	Name	Price (US)
4535490	Not on the store yet	—
4535510	Not on the store yet	—
4535520	Not on the store yet	—
4535530	Not on the store yet	—
4535540	Not on the store yet	—
4535570	Not on the store yet	—
4593360	Not on the store yet	—
5253050	Not on the store yet	—
5253060	Not on the store yet	—

Depots

ID	Name	Systems	Size	Download	Manifest
2914151	—	All	3.07 GB	2.70 GB	3521675344721190545
2914152	—	All	2.6 KB	800 B	1760257574849926377

Branch	Build	Updated	Access
public	25951807	Oct 15, 2026	Open

Configuration

Install foldersteamapps/common/Yunyun_Syndrome

Executable	Arguments	Systems	Description
Yunyun_Syndrome.exe		All
launcher/AA-Launcher.exe		All

Space per player38.1 MB

Filesup to 120

Save locations2

Root	Path	Pattern	Systems
WinAppDataLocalLow	AllianceArts/Yunyun_Syndrome/player/	*	All
WinAppDataLocalLow	AllianceArts/Yunyun_Syndrome/player/	config.json	All

Achievements

Achievements497 hidden

Most unlocked96%YUNYUN DENPA OTW!

Rarest7.9%Sleepy time now!

YUNYUN DENPA OTW! Get your kokoro going doki doki up the wazoo! 96%
Time to explore! Check out the nooks and crannies of Qtie's room! 91.4%
POWAAHH! MWAH <3 ! Caffeine makes me all YIPPIEEE! 83.5%
Yunyun Denpa signal SEND! Qtie's shitposts use a special Yunyun code to predict earthquake frequencies? 81.1%
Full Combo! YUN ROCK! You're amazing! Five stars!!! 77.6%
Y-unzip! ILLUSION? TEATIME! 57.4%
Q † CHANNEL Oyasumi Qtie! 56.3%
Conspiracy Control Geass Qtie the Delulu Denpa Beauty commands you! SPIRAL SUBJECTS! SPIRAL WORLD! YUUUN! 47.8%
Yunyun Possession I didn't get this ultra cute Sakana Yuuki keyboard to argue with TROLLZ! 47.5%
Hikikomori plus the square root of cat ears is... Limitless power. Cats are trying to take over the world through viral cat video propaganda? 42.6%
I WILL defeat you, vile dolphin! The screaming beaver is a primordial inhabitant of the inner earth that will soon invade the surface world? 42.3%
YUN DIE Magic eraser YUN! 37.2%
Time to sail to the New World! Crime syndicate DQN is planting bullies in schools for basic criminal training? 28.4%
HALP! Just hold on, Qtie-pie. Yunyun's Denpa to the rescue! 28.2%
Yunyun Syndrome Oopsies. 26.4%
Yunyun Logic No matter what, I will always love you Qtie. 25.7%
Guess they're anti-family planning. Romance media is promoted by demon worshipers to undermine real human intimacy and negatively impact birth rates? 25%
DONIDEMONARE Who's the happiest weeb in the world? MEEEEEEEEEEE! 24.5%

All 49 achievements

Don't leave me all alone...yu.un If I can't fidget and flutter I start growing mushrooms y'know! 24.5%
Baaaiiii! Reptilians are learning about human emotions through playing nakige? 23.9%
Yun are an idiot. YUNYUN HARDCORE 23.7%
There is no next time. Trash me once shame on me, trash me twice shame on you, trash me three times that's just mean ;^; 22.7%
GYAH! Self-destruction! Being a hikikomori requires a mental fortitude that when perfected will isekai you? 21.2%
Suffering From Worthlessness? SFW is a fascist mantra of self-repression and abiding by it destroys your sense of self. 19.9%
Aquarium Qtie Everyone posting online is a bot, and all of your followers are OOMBs? 19.2%
Do androids dream of denpa NEETs? Politicians are androids communicating on a 6G network? 19%
Do NOT press the suspiciously candy-like red button! Lookout for those debug features! 18.9%
The duel nature of light and darkness. Artificial Intelligence has learned too much from introverts and has become anti-social? 18.8%
You can tell a lot about someone just from their face! VR games are being used to experiment on self-identity development, and may be able to make you a better person? 17%
Childhood Memz You found all the pages of Qtie's diary! 16.6%
Miracles and magic can only do so much. Sunday morning cartoons are screening viewers for potential magical compatibility? 15.9%
The Internet is no longer. The algorithm selects viral videos that brainwash us to keep us dumb and complacent? 15.4%
You just got UBERCHARGED! Moe is a renewable energy resource that can replace nuclear power? 15.4%
Taxes don't go away just cuz you're broke. Doujin scammers are taking orders from an evil secret society called PixiQ to mass produce certain genres? 15.4%
The ones in Heaven and the ones in Hell are dead all the same. Yunyun is a Supreme Goddess and only believers will be saved? 15.1%
The only time I've heard of anything that can get so mad it dies was that monkey from Gen 1! Otakus are spiraling deep enough into their delusions that they can communicate with their 2D waifus? 15.1%
Look out for that fourth dimensional velocity. Hidden achievement 15%
Qtie Logic These are Qtie's truths. 14.9%
Hikikomori of the DED! Rage-bait spamming influencers have formed contracts with demons for popularity, and without enough views they'll turn into zombies? 14.8%
Qtie The Delulu Denpa Beauty. This world is the dream of a hikikomori girl living out her fantasies? 14.7%
ERROR. RESTART GAME. Hidden achievement 12.1%
Brb, ascending! Hidden achievement 11.1%
Engage Link Hidden achievement 9.8%
TOO CUWUTE! HNNG! My heart is gunna DOKI DOKI right out of my chest!!! 9.2%
Clearly Paranoid Qtie Hidden achievement 9.1%
Everything will be yunified. YUNYUN~YUNYUN~YUNYUN~~~ 9%
Rim de Lacent. Hidden achievement 8.8%
It's pure chaos. Not even HYPE is exempt from the too much of a good thing philosophy! 8.7%
Sleepy time now! Hidden achievement 7.9%

Update history

Oct 25, 2026 · 13:26 #39988015
- appid removed
- common.ReleaseState added released
- common.releasestate removed
- config.launch.0.config.BetaKey added debug,chart-debug
- config.launch.0.config.betakey removed

Data from public Steam pages, updated daily; 1 day of history. LaunchRivals is not affiliated with Valve or Steam.

Yunyun Syndrome!? Rhythm Psychosis

About Yunyun Syndrome!? Rhythm Psychosis

Steam data

Overview

App info

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Prices

Israel₪ILS

Americas 10

Europe 5

CIS 4

Asia-Pacific 15

Middle East & Africa 7

Patches

Builds

Packages & DLC

DLCs

Depots

Depots

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Configuration

Launch options

Cloud saves

Achievements

Global unlock rate

Update history

Changes to the Steam record