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A 2D action-adventure where the story unfolds by tuning the stage with music. A play by Aleph and Liora, who have lost their memories. A beautiful yet eerie stage, and the secret of the forgotten theater await. Your choices will determine the play's ending — and their fates.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Train Fest starts Jul 20, 2026
Official stores with direct support.
"—To fade away... was it hope for you and me, or despair?"
『Nientum – Op.Zero』 is a 2D action-adventure music game that combines platformer, action, and adventure elements.
Tune the stage through musical interactions and experience a unique journey to breathe life back into a theater that has settled in a gray stillness.
A theater once filled with songs and stories is now filled only with silence.
In this desolate place, Aleph and Liora, who have lost their memories, become the Director and the Actress to raise the curtain on a new play.
On a stage that is beautiful yet foreboding, warm yet sorrowful, they discover lost clues one by one.
What truth will they face in the final scene of this play?
The gems scattered throughout the stages are fragments of broken notes.
Use Aleph’s ability to tune them, play their restored notes, and restore stage devices to complete the preparations for the performance.
As platforming, puzzles, and action naturally intertwine, the theater begins to regain its vitality.
The Wizard of Oz, Cinderella, The Legend of King Arthur...
Familiar tales are reinterpreted, and sometimes twisted, into musicals that unfold before your eyes.
With each of Liora’s successful performances, a fresh glow of life returns to the theater. And their journey continues to the next act.
Nightmares and hope, wishes and despair, new encounters and farewells.
The fragments of memory lost by Aleph and Liora are revealed one by one, following your choices.
Depending on the direction of your choices, the end of the story takes a completely different turn, drastically altering their fates.
Please, join them in their journey and help raise the curtain on this strange play.
The stage is filled with music composed by renowned artists such as
Kagetora., Halv, and seatrus, delivering a deeply immersive experience.
The main characters—including Aleph and Liora—are brought to life by talented voice actors such as
Chika Anzai, Yuuki Takada, and Takehito Koyasu, vividly expressing the beauty and strangeness of the theater.
Director's Room: A space where you can record and view the various collectibles gathered while completing the play.
Free Play Mode: A dedicated mode where you can enjoy tracks built with the rhythm-action expertise of Quesera Games, separate from the main story.
Lowest tracked price: CA$20.79 (Jul 7, 2026) · current best: CA$25.99.
100% positive reviews in the last 30 days (99% all-time) · 4 peak players in the last 30 days.
Right now the cheapest offer for Nientum - Op.ZERO is CA$25.99 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for Nientum - Op.ZERO is CA$20.79 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
Nientum - Op.ZERO peaked at 4 concurrent players on Steam in the last 30 days (highest on Jul 12, 2026). The player chart on this page updates daily.
Create a free price alert on this page and KingsPrice will email you when Nientum - Op.ZERO drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
Audio & text: Japanese
Text only: English, Korean, Simplified Chinese, Traditional Chinese
