Play Nientum - Op.ZERO on PC Play Nientum - Op.ZERO on PC and Mac

About the Game

Step into a world where the curtain never truly falls. Nientum - Op.ZERO, developed by QueseraGames, is a 2D rhythm-action adventure that transforms every stage into a live performance. The story begins in a forgotten theater, long abandoned by its audience. Two girls, Aleph and Liora, awaken backstage with no memories of who they are or how they got there. Aleph reluctantly takes on the role of director, while Liora becomes the performer. Together, they must piece together the mystery of the theater and themselves. The only way to lift the curtain again is through Liora's voice, and through the rhythm that binds their world together.
Gameplay in Nientum - Op.ZERO defies simple categorization. It weaves together rhythm mechanics, platforming challenges, and a branching narrative. You will guide the characters through backstage areas, leaping across platforms and navigating the hidden corners of the theater. These exploration segments transition seamlessly into live performances, where the spotlight falls on Liora and the rhythm takes over. At critical turning points in the story, boss battles emerge as musical duets. These are not fights of strength, but of timing and precision. To win, you must keep the beat, matching the rhythm of your opponent and turning the performance into a victory.
Every choice you make influences how the final curtain falls. The narrative is shaped by your actions, and the rhythm you maintain becomes the script that drives the story forward. This unique blend ensures that no two playthroughs feel exactly the same, and that the stakes are always personal.
A major highlight of Nientum - Op.ZERO is its audio and voice acting. The game features a full Japanese dub, bringing the characters to life with performances by Chika Anzai, Yuki Takada, and Takehito Koyasu. Their voices add layers of emotion to every scene, making the theater feel alive even in its darkest moments. The music itself is not just background; it is the driving force of the gameplay, and each track is crafted to enhance the action on screen.
Accessibility is also a priority. Text is available in five languages, allowing a wider audience to enjoy the story. The game offers a free start, with the opening chapters available at no cost. A single unlock grants access to the full theater, making it easy to dive deeper once you are hooked.
Nientum - Op.ZERO first appeared on PC in Early Access, where it garnered attention for its innovative approach. It received the Excellence in Audio award at BIC 2024 and was selected for TGS 2026 SELECTED INDIE 80, a testament to its quality and creativity. The full release is set for October 14, 2026, and it will include Chapters 6 through 10, completing the story and opening the theater in its entirety.
For players who want to experience this rhythm-action adventure on a larger canvas, playing on PC through MuMuPlayer is an excellent option. The bigger screen makes it easier to track the platforming segments and the visual cues during performances. Precise controls, whether keyboard or gamepad, help you nail the timing required for boss duets. MuMuPlayer also ensures smooth performance and stable frame rates, so every beat and every jump lands exactly as intended. You can also play on Mac with MuMuPlayer, including MacBook and macOS devices, as well as Mac mini through MuMuPlayer, bringing the theater to a wider range of setups. Whether you are on a Windows PC or a Mac, the show goes on.
Key features of Nientum - Op.ZERO include:
A seamless blend of rhythm game, platforming, and narrative, where music and story are inseparable.
Boss duets that test your sense of rhythm at pivotal story moments.
A full Japanese dub featuring Chika Anzai, Yuki Takada, and Takehito Koyasu.
Text support for five languages.
A free start with the opening chapters, and a single unlock for the complete experience.
Chapters 6 through 10 arriving on October 14, 2026, to conclude the tale.
With its unique premise, engaging gameplay, and high production values, Nientum - Op.ZERO invites you to take your place in the audience and become part of the performance. Whether you are a fan of rhythm games, platformers, or story-driven adventures, this is one show you will not want to miss. Play it on PC through MuMuPlayer and let the music guide you to the final curtain.