Screenshots
Description
A story-driven 2D rhythm adventure blending music, platforming, and action. Retune a forgotten theater, face rhythm-based boss duels, and decide how the final curtain falls.
The curtain has come down on a theater that was once full of life. The lights, the music, and the applause have all faded into silence. Inside, two girls wake up with no memory of who they are or how they ended up there. Aleph will guide the way while Liora takes the spotlight. Together, they must breathe life back into the dormant theater. Yet the stage holds more than lost songs. Scattered clues and hidden performances may reveal the truth of their past.
Nientum – Op.ZERO is a 2D adventure game that fuses rhythm, action, and platforming with interactive story elements and puzzles. Set inside a crumbling theater, players restore the stage, tune fragments of songs, and rehearse for performances. Google Play
Tune the Stage with Music
Here, music is far more than background audio; it drives the gameplay itself. Using Aleph's special ability, players tune broken notes hidden throughout each level to power up mechanisms and bring the melody back together.
As you advance, the silent theater slowly comes back to life. Explore, interact, and take your place on stage!
At key moments in the story, battles unfold as rhythmic duets. Confront formidable foes, stay in step with the beat, and conquer each phase by striking at exactly the right moment. Your victory depends on your sense of timing.
FIND A MYSTERY TO UNRAVEL
Aleph and Liora have lost their memories, yet the theater seems to remember everything…
INVESTIGATE THE MYSTERIES
Wander through a range of enigmatic scenes and draw your own conclusions about Aleph and Liora. Uncover the answers concealed within the final performance, along with other secrets buried throughout the theater.
YOUR CHOICES MATTER
Your decisions shape the story, determine how the play unfolds, and decide the fate of the theater's characters and crew. Enjoy hours of exclusive narrative adventure! Steam Store
Restore broken notes and use musical interactions to repair stage mechanisms and revive the forgotten theater.
🕹️ Rhythmic Boss Duels
Challenge boss enemies in duels that demand precise timing and a strong sense of rhythm to come out on top.
🌙 Atmospheric 2D World
Explore a fantasy theater rendered in 2D and uncover its mysterious, sometimes eerie, environments.
📖 Story Driven Adventure
Help Aleph and Liora recover their lost memories and uncover the truth behind the forgotten theater.
🎬 Your Choices Matter
Make the choices you believe in; they can influence the play and the characters' fates, including the ending.
🎙️Full Japanese Voice Actions
Immerse yourself in a story and cast fully voiced by well-known Japanese voice actors: Chika Anzai, Yuki Takada, and Takehito Koyasu. (Google Play)
🌐Five Text Languages
The game offers text in English, Japanese, Korean, Simplified Chinese, and Traditional Chinese. (Steam)
🎶 Free Play Music Collection
The full release includes 30 Free Play tracks, 20 more than the demo, so you can keep enjoying the music beyond the main story.
How to install
- Download the APK file above to your phone.
- Allow “Install unknown apps” when prompted.
- Open the downloaded APK and tap Install.
- If the package includes OBB/XAPK data, follow the bundled instructions.
MOD APKs are modified builds, so Play Protect may show a warning. Install only if you trust the file; use at your own risk.


