Nientum - Op.ZERO Description

The curtain fell long ago on a forgotten theater. The lights, the music, the applause — all of it stands frozen in the dark. Backstage, two girls wake without their memories — Aleph, who takes the director's chair, and Liora, who takes the stage. Only her voice can raise the curtain again.

Nientum - Op.ZERO is a 2D rhythm-action adventure where every stage is a performance. Backstage platforming flows into live performance in the spotlight, and at every turning point of the story, boss battles unfold as duets you win by keeping time. Rhythm becomes the script, and your choices decide how the final curtain falls.

Voice is half of this theater: a full Japanese dub by Chika Anzai, Yuki Takada, and Takehito Koyasu.

Game Features
- A rhythm game where music, platforming, and story become one stage
- Boss duets fought in rhythm at the story's turning points
- Text in five languages
- Start free — the opening chapters are free, with a single unlock for the full theater

First released on PC in Early Access. Excellence in Audio at BIC 2024. Selected for TGS 2026 SELECTED INDIE 80.

And on October 14, 2026 — with Chapters 6–10 added — the theater finally opens in full.

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Is Nientum - Op.ZERO safe for my device?

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Yes, Nientum - Op.ZERO follows the Google Play content guidelines to ensure safe use on your Android device.

What is an XAPK file, and what should I do if the Nientum - Op.ZERO I downloaded is an XAPK file?

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A file with .xapk extension is a compressed package file. It is a container file format that incorporates APK and additional associated files required for the installation. The XAPK format was introduced to package the APK file and OBB file together for a seamless delivery and installation process. XAPK format can help reduce the package size of application. On mobile phones, users need to install the XAPK installer first, and then install XAPK files through that installer. You can find the installer here:https://apkcombo.com/how-to-install/. But on PC client, you just need to put the file on LDPlayer.

Can I play Nientum - Op.ZERO on my computer?

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Yes, you can play Nientum - Op.ZERO on your computer by installing LDPlayer, an Android emulator. After installing LDPlayer, simply drag and drop the downloaded APK file into the emulator to start playing Nientum - Op.ZERO on PC. Alternatively, you can open the emulator, search for the game or app you want to play, and install it from there.