Nientum - Op.ZERO
A 2D action-adventure where the story unfolds by tuning the stage with music. A play by Aleph and Liora, who have lost their memories. A beautiful yet eerie stage, and the secret of the forgotten theater await. Your choices will determine the play's ending — and their fates.
Last Updated: 2/12/2026
| Steam Price | $19.99 |
| Release Date | 11/24/2025 |
| Franchise | QueseraGames |
| Developers | |
| Publishers | |
| Steam App Id | 2725250 |
Nientum - Op.ZERO
A 2D action-adventure where the story unfolds by tuning the stage with music. A play by Aleph and Liora, who have lost their memories. A beautiful yet eerie stage, and the secret of the forgotten theater await. Your choices will determine the play's ending — and their fates.
Last Updated: 2/12/2026
- Windows
- Mac
- Linux
- Steam Deck (Playable)
About Nientum - Op.ZERO
Nientum - Op.ZERO is a Casual, Action, Indie, RPG, Adventure, Simulation, Sports, and Early Access game developed by QueseraGames Co., Ltd., and QueseraGames. On 11/24/2025, it was released on the Steam Store by QueseraGames, and QueseraGames Co., Ltd.
It can be played and ran on Windows systems. At the moment, it is possible to play Nientum - Op.ZERO on the Steam Deck but some functionality may not be fully supported.
It also supports 5 languanges in-game including English, Japanese, Korean, Chinese (Simplified), and Chinese (Traditional). Each language comes with varying levels of support for the in-game interface, audio, and fully translated subtitles.
According to Steam’s category system, Nientum - Op.ZERO supports the following features:
- Family Sharing
- Single-player
From the Steam community, Nientum - Op.ZERO has been tagged with the following user tags:
- Music
- Difficult
- Lore-Rich
- Atmospheric
- Fantasy
- Story Rich
- Surreal
- Platformer
- Rhythm
- Visual Novel
- Hand-drawn
- Action-Adventure
- Dark Fantasy
- Anime
- Indie
- Action
- Adventure
- Female Protagonist
- 2D
- Emotional
Media & Sceenshots
Watch the featured video for Nientum - Op.ZERO and see the latest screenshots from the Steam Store.

Related Packages
Nientum - Op.ZERO is referenced by 1 package in the Steam Store. A package (or sub) is simply an item that can be purchased on Steam.
| Name | Price | Actions |
|---|---|---|
| Nientum - Op.ZERO | $17.99 | View |
Supported Languages and Localizations
Nientum - Op.ZERO is available in 5 different languages with varying levels of support for the in-game interface, audio, and fully translated subtitles.
| Name | Interface | Audio | Subtitles |
|---|---|---|---|
| English | Yes | No | Yes |
| Japanese | Yes | Yes | Yes |
| Korean | Yes | No | Yes |
| Chinese (Simplified) | Yes | No | Yes |
| Chinese (Traditional) | Yes | No | Yes |
Discover Similar Games
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Features & Categories
Frequently Asked Questions
Soures & References
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Nientum - Op.ZERO data has been sourced from:
- Valve Corporation. (2026, February 12). Nientum - Op.ZERO on Steam. Steam Store.
- Valve Corporation. (2026, February 12). Nientum - Op.ZERO. Steam Community Hub.