1 store · cheapest $16.99 · source CheapShark
Its record low was $13.59 in June 2026 — $3.40 below today's best price.
All-time low $13.59 on Jun 18, 2026 · source cheapshark
Not enough observations yet. History starts the first time we see this game and grows from there — we never back-fill a price we did not record.
Concurrent Steam players · sampled just now
Playing now
33
24h peak
42
7d peak
42
Official Steam announcements for this game
Patch Notes Ver. 1.1.0
▶ Update to Ver. 1.1.0· Expanded the sort and search features for “Songs”· Added a feature that allows note speed to be adjusted during rhythm game play· Added per-song audio sync adjustment, also known as local offset· Added more areas that can be controlled ...
3mo ago
100,000 copies sold!
Total sales of the main game "Yunyun Syndrome!? Rhythm Psychosis" have surpassed 100,000 copies!To everyone who tuned in to our denpa. Thank you from the bottom of our hearts!
3mo ago
Patch Notes Ver. 1.0.9
▶ Update to Ver. 1.0.9· Adjusted special dialogue to play on the title screen on specific dates· Adjusted the HARDCORE GAMER and NORMAL ratings, which were internally identical, by unifying all ratings except DEGENERATE (NORMAL, HARDCORE GAMER, TRYHARD) and co...
4mo ago
“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.
