⚜ SteamCozy

Home / Games / Nientum - Op.ZERO

Nientum - Op.ZERO

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.

Released Oct 13, 2026 Developer QueseraGames Platforms Windows Early AccessStory RichAtmosphericRhythmDark Fantasy
View on Steam ↗ $15.99 (US · as of 2026-10-22)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-10-22 · quoted reviews as of 2026-10-16.

98.7%positive391 reviews
Recommended · 16 found this helpful

“[後半に日本語レビューあり] A musical rhythm adventure that progresses while “tuning” fairy-tale stage devices This work combines runner-style rhythm inputs with musical theater segments to advance the story. The player collects shattered notes backstage and tunes the distorted fairy-tale…”

— a player, Steam review · 5 hrs played
Recommended · 11 found this helpful

“Extremely cool game. Mechanically, it's Muse Dash, but unlike MD, the aesthetics of Nientum are cohesive and the vibes are totally immaculate. The story is pretty interesting, and more importantly, the level design is insane. The game is split into what seems will be 10 'plays'…”

— a player, Steam review · 3 hrs played
Recommended · 2 found this helpful

“Absolutely amazing game, beautiful songs and an emotional story that made me tear up a bit. I can't wait for the full thing! I was really giddy when I recognized some of the voice actors in the game. I only hope that they let you retry during the campaign stages for a FC, and…”

— a player, Steam review · 3 hrs played
Read more reviews ↗

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-10-20.

47achievements
12.9%median completion
4.2%rarest: A score of 100
47.9% of players 46.2% of players 45.8% of players 36.6% of players 34.7% of players 30.7% of players 30.2% of players 26.2% of players 22.9% of players 21.8% of players 19.7% of players 19.1% of players 18.5% of players 17.5% of players 17.1% of players 16.9% of players 16.9% of players 16.4% of players 14.8% of players 14.3% of players 13.9% of players 13.4% of players 13.1% of players 12.9% of players 12.3% of players 11.6% of players 11.2% of players 10.8% of players 10.6% of players 10.4% of players 10.3% of players 10.1% of players 10.1% of players 9.6% of players 9.5% of players 9.1% of players 8.8% of players 8.7% of players 8.3% of players 8.3% of players 7.7% of players 6.9% of players 6.0% of players 6.0% of players 5.9% of players 4.3% of players 4.2% of players 47.9% 0% most earned rarest
Almost everyone has
47.9%Super Star — Achieve SS Rank
46.2%A Story of Nobody — Clear Act 0
45.8%Everything is So Shiny! — Achieve All Lumina+
Rarest badges of honor
4.2%A score of 100 — Hidden achievement
4.3%Liora's Eternal Trophy — Hidden achievement
5.9%Nientum, Director's Cut 2 — Hidden achievement

Price tracking

US-region pricing (USD), sampled twice daily by our own tracker since 2026-09-28. Steam prices vary by region — always confirm your local price on Steam.

$15.99−20% right nowcurrent · sampled 2026-10-22 11:56 UTC
$19.99base price
$15.99lowest since tracking began2026-10-14
US15.99 USD−20%
EU15.60 EUR−20%
UK13.40 GBP−20%
Australia23.60 AUD−20%
Canada20.79 CAD−20%
Japan1,760 JPY−20%
Brazil47.99 BRL−20%
China60.80 CNY−20%

Regional prices at last sample, in local currency — Steam sets each region's price independently.

China≈$9.1 Brazil Japan Canada US Australia EU UK≈$18

Cheapest → most expensive, converted to USD at ECB reference rates (2026-10-22). Relative comparison only.

$0 $25 $50 09-28 10-02 10-07 10-13 10-17 10-22

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Oct 22, 2026
[2026.10.22] Nientum - Op.ZERO Patch Notes 1.0.14

Hello, this is QueseraGames. Here are the patch notes for Nientum - Op.ZERO version 1.0.14. Patch 1.0.14 Added the option to choose "From the Beginning" or "From Checkpoint" when retrying a stage The

Oct 21, 2026
[2026.10.21] Nientum - Op.ZERO Reaches "Overwhelmingly Positive" & Thank You for

Hello, this is QueseraGames. It has been one week since the full release of Nientum - Op.ZERO. This is the highest rating a game can receive on Steam. Just one week after launch, this is what you made

Oct 18, 2026
[2026.10.18] Nientum - Op.ZERO Launch Discount & QueseraGames Bundle

Hello, this is QueseraGames. We have two pieces of news for you: a launch discount to celebrate the official release, and a bundle that lets you enjoy KALPA: Cosmic Symphony alongside Nientum - Op.ZER

Oct 17, 2026
[2026.10.18] Nientum - Op.ZERO Patch Notes 1.0.13

Hello, this is QueseraGames. Here are the patch notes for Nientum - Op.ZERO version 1.0.13. Patch 1.0.13 Fixed an issue where song info was not displayed correctly in Free Play Fixed an issue where th

Oct 16, 2026
[2026.10.17] Nientum - Op.ZERO Patch Notes 1.0.12

Hello, this is QueseraGames. Here are the patch notes for Nientum - Op.ZERO version 1.0.12. Patch 1.0.12 Fixed an issue where some achievements could not be unlocked Fixed an issue where a certain end

Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-10-14.

GenresAction, Adventure, Casual, Indie, RPG, Simulation, Sports
Player tagsEarly Access · Story Rich · Atmospheric · Rhythm · Dark Fantasy · Action-Adventure · Music · Surreal · Anime · Difficult · Fantasy · Hand-drawn (Steam store community voting)
FeaturesSingle-player · Family Sharing
LanguagesEnglish, Japanese * , Korean, Simplified Chinese, Traditional Chinese *
Achievements47
Official sitehttps://www.queseragames.net
Minimum system requirements (PC)

Minimum: Requires a 64-bit processor and operating system OS: Windows 10 64-bit Processor: Intel Core i3-2120 | AMD FX-4350. Memory: 4 GB RAM Graphics: Nvidia GTS 450 | AMD Radeon HD 5750. Network: Broadband Internet connection