Yunyun Syndrome!? Rhythm Psychosis - Extra Song Pack feat. KOTOKO — cheap CD keys, compare prices
Is it worth buying?
- The price is at or near its all-time low — a good time to buy.
Estimate based on public reviews (Metacritic/Steam) and price history — the final call is yours.
About the game
This add-on for Yunyun Syndrome!? Rhythm Psychosis is a bonus music bundle featuring the singer KOTOKO. It unlocks 12 tracks, among them a remix of "Ren'ai CHU!". It comes from Alliance Arts and WHO YOU and was released in 2026.
Best price today
€4.99
lowest in tracked period: official €4.99 near low
The cheapest Yunyun Syndrome!? Rhythm Psychosis - Extra Song Pack feat. KOTOKO key right now costs €4.99 at Steam. The lowest price we have recorded for this game: €4.99.
Prices as of
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Lowest — official stores
€4.99
Oct 2026
Price history
last 15 daysHow to activate your key
- Steam key — open the Steam client → Games → Activate a Product on Steam → enter the key. Stores with this activation: Steam
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All-time low so far: €4.99
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About this game — FAQ
Can Yunyun Syndrome!? Rhythm Psychosis - Extra Song Pack feat. KOTOKO be played single-player?
Yes, Yunyun Syndrome!? Rhythm Psychosis - Extra Song Pack feat. KOTOKO is a single-player game.
What languages does Yunyun Syndrome!? Rhythm Psychosis - Extra Song Pack feat. KOTOKO support?
Yunyun Syndrome!? Rhythm Psychosis - Extra Song Pack feat. KOTOKO is available in: English, Simplified Chinese, Japanese, Traditional Chinese, Korean, French, German, Portuguese - Brazil and 7 more.
Does Yunyun Syndrome!? Rhythm Psychosis - Extra Song Pack feat. KOTOKO use Steam Cloud saves?
Yes, Yunyun Syndrome!? Rhythm Psychosis - Extra Song Pack feat. KOTOKO uses Steam Cloud, so your saves sync across devices.
FAQ
Where is the cheapest place to buy a Yunyun Syndrome!? Rhythm Psychosis - Extra Song Pack feat. KOTOKO key?
The cheapest Yunyun Syndrome!? Rhythm Psychosis - Extra Song Pack feat. KOTOKO key is currently sold by Steam for €4.99. The lowest price we have ever recorded for this game: €4.99.
How much does Yunyun Syndrome!? Rhythm Psychosis - Extra Song Pack feat. KOTOKO cost?
Yunyun Syndrome!? Rhythm Psychosis - Extra Song Pack feat. KOTOKO currently costs from €4.99 — the cheapest offer across the stores we track.
Is Steam an official store or a keyshop?
Steam is an official store — keys come directly from the publisher or an authorized distributor.
Are keys from these stores legal?
Buying is legal — keys come from the grey market, so a small deactivation risk exists. So before paying, check the seller's buyer protection.
Which key region should I pick?
Global activates everywhere. Regional keys (Europe, North America, RU-CIS) only work on accounts from that region — use the Region filter to match your account.
What is an activation platform?
The service where the key activates — Steam, GOG, Epic or the publisher's platform. A key for one platform won't work on another, hence the separate filter.
What's the difference between editions?
Standard is the base game; Deluxe usually adds an expansion or bonus content. The edition filter shows exactly that variant, with no mixed prices.