Thank you very much for playing our title.
In the patch released on 2025-10-29 (Build ID: 20508911), we confirmed an issue where the system save data of some players was unintentionally reset.
We sincerely apologize for any inconvenience and concern this has caused.
On 2025-10-30 we stopped distribution of the affected patch and rolled back to Build ID: 15991593.
We have also fixed the issue and released a new patch (Build ID: 20764596) that includes countermeasures for a Unity vulnerability (a security issue in the game engine).
If your system save data has been reset, you can either play the game again with the latest patch applied,
or use a fully completed system save data file (with all elements required for achievements unlocked).
Please read the information below and, if necessary, make use of the fully completed system save data.
■ Information for Affected Players
[Current Status]
1. Stopping distribution and rollback
On 2025-10-30 we stopped distributing the problematic patch and restored the build to Build ID: 15991593.
2. Fix update
We are distributing a fixed patch (Build ID: 20764596) in which the cause of the issue has been removed.
3. Distribution of recovery data
We are providing a fully completed system save data file (see link below).
[Scope and Period of the Issue]
Affected users: Players who updated to the patch released on 2025-10-29 (Build ID: 20508911)
Period: From 2025-10-29 until distribution was stopped on 2025-10-30
Details: Regardless of whether the game was launched, once the affected patch was applied the system save data was reset to its initial state.
■ Types of Saves and Impact
This game has the following two types of save data.
・System save data: Stores overall progress such as route completion and still/CG viewing, as well as Config settings
・Save data: Stores the progress of each playthrough
Only the “system save data” is reset by this issue; normal save data is not affected.
■ Notes (Details of the Distributed Data)
When you use this data, your game will be in a fully completed state, so when you obtain any one Steam achievement, all Steam achievements will be unlocked.
For players who wish to earn Steam achievements on their own, we do not recommend installing this data.
In addition, because this data overwrites the system save data, the following points will be changed:
・Config settings will be reset to their initial state.
・Voice Collection will be reset to its initial state.
・The main story will be treated as completely unread.
・All content in Extra will be set as fully collected.
*Save data used during gameplay will not be changed.
Please use the fully completed data with the above points in mind.
By downloading this data, you are considered to have read and agreed to these notes.
・Fully completed data
https://dramaticcreate.com/ST/nie_full_complete.zip
*The compressed file you download contains Readme_Nie_EN.txt, which explains the destination folder and important notes for use (including minor spoilers).
Please make sure to read it before use.
■ How to Check the Build ID In the Steam client, right-click this title in your “Library” and select “Properties”. Open the “Updates” tab in the window that appears and you will see the “Build ID” displayed at the bottom of the screen. (The display location may differ depending on the version of the Steam client.)
■ Contact If you are unsure how to install the data or if the issue is not resolved, please contact our support desk. If possible, please include the following information: ・Build ID you are using / date and time applied ・Details of the impact (e.g. still gallery viewing status, dictionary completion rate, etc.) ・Logs or screenshots (optional)