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Release: 24 Nov 2025
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About Nientum - Op.ZERO

Nientum - Op.ZERO - about the game
In a silent theater drained of songs and stories, two amnesiac characters step up as Director and Actress to revive its stages. They tune scattered gem fragments into restored notes, powering up devices amid intertwined platforming, puzzles, and action. This 2D action-adventure music game reinterprets classic tales like The Wizard of Oz and Cinderella as musical performances that slowly bring color back to the gray venue. Choices shape memory fragments, nightmares, hopes, and multiple endings that alter their fates. Liora performs on tuned stages while familiar voices and tracks from artists like Kagetora and seatrus fill the space. Players who blend rhythm-action with exploration and light RPG choices in a casual indie package will uncover the play's hidden truths.

"—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 Strange Play Created Without Memories

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?

Prepare the Stage Through Action — The Power of 'Tuning'

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 Performance Unfolds on the Stage You Tuned

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.

Truth Brought to Light — Endings Shaped by Your Choices

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.

Music and Voices that Bring the Stage to Life

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.

Additional Content
  • 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.

Interface:
EnglishJapaneseKoreanSimplified ChineseTraditional Chinese
Audio:
Japanese
Subtitles:
EnglishJapaneseKoreanSimplified ChineseTraditional Chinese

Age rating

Unavailable

Minimum:

  • OS: Windows 10 64-bit
  • Processor: Intel Core i3-2120 | AMD FX-4350.
  • Memory: 4 GB RAM
  • Graphics: Nvidia GTS 450 | AMD Radeon HD 5750.
  • Additional Notes: Broadband Internet connection

Recommended:

  • OS: Windows 10 64-bit
  • Processor: Intel Core i3-2120 | AMD FX-4350.
  • Memory: 4 GB RAM
  • Additional Notes: Broadband Internet connection
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FAQ

8 questions

Before you start looking for a cheap Nientum - Op.ZERO key, check the essentials. Developed by QueseraGames. Published by QueseraGames. PC released date: 24 Nov 2025. Genres: Action, Indie, RPG, Casual, Simulation, Adventure, Sports. Categories: Family Sharing, Single-player.

Q

Where to buy a cheap Nientum - Op.ZERO Steam key?

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We don't have a current Steam Store price for Nientum - Op.ZERO. The game may be temporarily unavailable or not yet listed on Steam.

Our price tracker covers both official retailers and key marketplaces, so you can find Nientum - Op.ZERO on sale even outside seasonal promotions. We currently detect 0 active offers from official stores and keyshops. Check the table above, compare against the historical low, and set an alert so you never miss the next price drop.

Based on our data, Nientum - Op.ZERO is not currently available on GeForce NOW. You will need to run it locally on your PC. Browse games available on GeForce NOW.

Yes. Nientum - Op.ZERO has an official page on the Steam Store, but we currently don't track any third-party offers with Steam DRM. Check back later or set a price alert.

Yes, with minor tweaks. Nientum - Op.ZERO is Steam Deck Playable - it works after small adjustments like selecting a Proton version or using the touchscreen for tiny launcher text. You can play Nientum - Op.ZERO on Steam Deck.

Nientum - Op.ZERO does not appear to be available on PC Game Pass, EA Play, Ubisoft+ or any other PC subscription service at this time. Your only option is purchasing the game - use XD.deals to find the best price.

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