Steam

Yunyun Syndrome!? Rhythm Psychosis

Also known as Yunyun Syndrome!? Rhythm Psychosis, steam:2914150, ysrp

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Last update

17 May 2026

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Published 20d ago

Notice of Demo Version Distribution End

Thank you for playing Yunyun Syndrome!? Rhythm Psychosis. We would like to inform you that distribution of the demo version will end at May 7 at 2:00 AM PT. This decision was made because it has become difficult to keep…

Announcement1 changeGameplay

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Latest updates

Update archive

Browse 18 historical updates and patch notes for this game.

18shown

MediaVersionDateTypeSummaryAction
v1.0.821d agoAnnouncementHello, this is WHO YOU (Fuyuki Hayashi). I’m sending out two announcements with this news. ▶ Update to Ver. 1.0.8 Fixed a bug where some images could not be exported in MyPicture Implemented a special effect for certain…AnnouncementImpact 603 changes
v1.0.724d agoAnnouncement▶Update Details Reduced the amount of DENPA LEVEL (Denpa Level) required to reach 100% Added Awesome Keeb Modded Ver. from Part 2 A heavily modded Awesome Keeb that instantly ends “Denpa Songs” (Does not affect achievem…Announcement1 changeFix
v1.0.626d agoAnnouncementAdjustments to some English localization text. ------------------------------------------------------------------------------------------------ ▶ In-game Net User Comments やめろ Old: END FASCISM New: SOMEBODY STOP THIS ｷﾀ…AnnouncementImpact 501 change
#686226d agoStoreWith the Ver. 1.06 update, the English text has been revised. https://store.steampowered.com/news/app/2914150/view/502856256328827746 ========================= Hello everyone, My name is Fuyuki Hayashi (WHO YOU), the cr…StoreImpact 552 changes
#B93E29d agoEvent▶ DEMO Update to Full-Version Specifications Around 0:00 (JST) today, ahead of the full version release on April 24, we will be updating the demo version to partially reflect the latest full-version specifications. 【Upd…EventImpact 756 changes
#4C4A14 Apr 2026Announcement⚡ Yunyun Unhinged Post Recruitment Campaign ⚡ Submission Period: April 14 – 21, 2026 🎁 We want your "Yunyun Unhinged Posts"! - Your unhinged post could be implemented in the rhythm game sections of the game! - If selec…Announcement
v16.9931 Mar 2026AnnouncementThe rhythm-adventure game where you stream cryptic conspiracy theories to the beat of high-energy denpa tunes, Yunyun Syndrome!? Rhythm Psychosis, officially arrives on April 24, 2026, at 1:00 PM JST The price has been…AnnouncementImpact 602 changes
v1.0.425 Feb 2026Event[dynamiclink href="https://store.steampowered.com/app/4074930/_Demo/"]Today, we have released an update for the demo. UPDATE DETAILS • Added 10+ new Conspiracies • Added new event scenes • Added a new track: “winter is…EventImpact 655 changes
v1.0.305 Dec 2025Store[dynamiclink href="https://store.steampowered.com/app/4074930/_Demo/"]Today, we released an update for the demo version. Patch Notes • Added an ON/OFF toggle for Screen Shake during rhythm gameplay • Adjusted offset val…StoreImpact 552 changes
#E2CD29 Nov 2025AnnouncementThe rhythm adventure Yunyun Syndrome!? Rhythm Psychosis, where players ride the wave of denpa songs and spread absurd copypasta across the world, is set to release in April 2026! Along with this announcement, we’ve rele…AnnouncementImpact 502 changes
#F9A429 Nov 2025AnnouncementYunyun Syndrome!? Rhythm Psychosis has announced that, along with the updated demo, the game is now scheduled for release in April 2026. We originally announced a “winter release,” and we sincerely apologize for keeping…AnnouncementImpact 703 changes
#503429 Nov 2025Store[dynamiclink href="https://store.steampowered.com/app/4074930/"]The demo for Yunyun Syndrome!? Rhythm Psychosis has surpassed 150,000 downloads! Today, we’ve also released a new demo update featuring several additions a…StoreImpact 757 changes
v1.0.113 Oct 2025Store[dynamiclink href="https://store.steampowered.com/app/4074930/_Demo/"]We updated the limited-time demo version of " Yunyun Syndrome!? Rhythm Psychosis". Patch Notes: Fixed chart issues for “Princess Brave!” Fixed an iss…StoreImpact 654 changes
#464010 Oct 2025StoreHello everyone! Thank you for taking an interest in our game. We are happy to announce the release of a limited-time playable demo! [dynamiclink href="https://store.steampowered.com/app/4074930/_Demo/"] About the Demo T…StoreImpact 653 changes
#482905 Sept 2025AnnouncementThe theme song and opening animation for Yunyun Syndrome!? Rhythm Psychosis are now live! So, put on your headphones and start receiving those Yunyun waves right now. This is a rhythm-adventure game where a hikikomori g…Announcement1 changeGameplay
#821504 Sept 2025AnnouncementWe’re excited to announce that a Closed Beta Test will be held! Applications to join the test will be accepted via our official Discord server. Join the official “Yunyun Syndrome!? Rhythm Psychosis” Discord and stay tun…AnnouncementImpact 705 changes
#0CE904 Sept 2025AnnouncementRegarding the new Cute × Psychological × Rhythm Game, Yunyun Syndrome!? Rhythm Psychosis, which was originally scheduled for release on October 30, 2025, We have decided to postpone the release to this winter in order t…AnnouncementImpact 603 changes