Key information
QueseraGames officially released the full version of Nientum - Op. ZERO for PC and Android on October 14, 2026. The PC version previously spent time in Steam Early Access, which began in November 2025.
This 2D rhythm action title blends platformer, action, and adventure mechanics. Players follow two amnesiac girls, Aleph and Riora, who take on the roles of stage director and actor within a forgotten theater. The voice cast features Chika Anzai, Yuki Takada, and Takehito Koyasu.
Gameplay involves Aleph tuning scattered gems to restore stage equipment while playing music. Once prepared, Riora performs distorted musical reinterpretations of classic tales like The Wizard of Oz, Cinderella, and the Legend of King Arthur.
The full release adds chapters 6 through 10, concluding the main story. Updates include new staging effects, a Hard difficulty mode for the story, and 20 additional tracks for free play, bringing the total to 30 songs. The PC version costs 2200 yen, with a 20 percent discount available until October 28. The Android version is priced at 1740 yen, offering a free introductory chapter.
