Development Update: This is a technical update on our ongoing work and recent reports we have received from users April 17, 2025 13:45 (JST)

[miharasan@arika]

Development Update: This is a technical update on our ongoing work and recent reports we have received from users April 17, 2025 13:45 (JST)

This is a technical update on our ongoing work and recent reports we have received from users.

▼ Issue: Game Progress Being Reset (Reported by Some Users)
Some users have reported that their game progress appears to be reset upon restarting the game.

We would like to first provide a potential recovery method for those affected by this issue.

We have implemented a backup system within the game that stores up to 10 previous versions of save data.
These backups include progress information and option settings.

Backup location:
C:\Users\[YourUserName]\AppData\Local\tgm4\savedata\[SteamID]\backup

Files:

option.01.ini ~ option.10.ini

status.01.ini ~ status.10.ini

If your progress has been lost, please try the following recovery procedure:

Navigate to the folder above.

Choose the lowest-numbered backup file (e.g., option.01.ini, status.01.ini).

Copy and rename it to overwrite the current files in the following directory:

Save data location:
C:\Users\[YourUserName]\AppData\Local\tgm4\savedata\[SteamID]

Overwrite these files:

option.ini

status.ini

If the files still appear corrupted, try using the next backup in sequence.

Current Analysis and Findings:
To be fully transparent ? we do not yet know the exact cause of this issue.
We acknowledge the possibility that this could stem from a coding error on our side.

Based on the information provided by users who reported the problem, the following commonalities were noted:

The issue became noticeable after restarting the game.

Steam Cloud was enabled during the time of data loss.

Beyond these two points, we were unable to identify any consistent patterns.

We did, however, manage to reproduce a similar case internally under the following conditions:
After quitting the game, if Steam attempted to upload save data to Steam Cloud,
and the user closed the Steam client before the sync completed,
there were rare cases in which save data was lost upon the next launch.

We suspect that when the game tries to load the save data but finds it incomplete or corrupted,
it may treat the environment as if it were a first-time launch, and reset the data accordingly.

As a temporary and cautious countermeasure,
we kindly ask that players disable Steam Cloud for this game.

We are continuing to investigate the issue and working on a permanent solution.
We sincerely apologize for the inconvenience.

▼ Issue: Detection by Windows Defender (Trojan:Script/Wacatac.C!ml)
Some users have reported that Windows Defender flags the game as “Trojan:Script/Wacatac.C!ml.”

We have thoroughly checked the original code to rule out the possibility of an actual virus,
and we have found no malicious content or infection within the codebase.

We are confident that this is a false positive.

What is "Trojan:Script/Wacatac.C!ml"?
It is a broad, generic detection label used by Microsoft Defender to flag software that behaves “suspiciously,” even if it is harmless.

Script: Despite the name, this label can be applied to programs that do not contain JavaScript, VBScript, or any scripting at all.

Wacatac: Not tied to a specific malware family ? used generically for questionable behavior.

.C!ml: Indicates that the threat was flagged via machine learning algorithms.

We have already submitted a false positive report to Microsoft.

We will continue to monitor and investigate this issue as well.
Again, we apologize for the trouble and thank you for your patience.


開発報告：現在進行中の作業および、ユーザーの皆様から寄せられた報告に関する技術的なお知らせです 2025年4月17日 13:45（JST）

現在進行中の作業および、ユーザーの皆様から寄せられた報告に関する技術的なお知らせです。

▼ ゲームの進行状況がリセットされる問題について（一部ユーザー報告）
一部のユーザーから、ゲームを再起動した際に進行状況がリセットされるという報告を受けています。

まずは、この問題が発生した場合のデータ復元方法をご案内します。

ゲーム内には、最大10世代分のバックアップを自動で保存する機能が実装されています。
このバックアップには、進行状況やオプション設定が含まれます。

バックアップの保存先は以下の通りです：
C:\Users\[ユーザー名]\AppData\Local\tgm4\savedata\[SteamID]\backup

対象ファイル：

option.01.ini ～ option.10.ini

status.01.ini ～ status.10.ini

進行状況が失われた場合は、上記フォルダ内から番号が若いバックアップファイルを選び、
次のフォルダ内の現在のファイルをリネーム・上書きして差し替えてください：

保存先：
C:\Users\[ユーザー名]\AppData\Local\tgm4\savedata\[SteamID]

上書きするファイル：

option.ini

status.ini

ファイルが破損している場合は、次に古いバックアップファイルを試してください。

現在の見解：
正直なところ、現時点で明確な原因は特定できていません。
コーディング上のミスである可能性も否定できません。

報告してくださったユーザーの情報を元に分析したところ、以下の共通点がありました：

ゲームの再起動時に問題に気づいた

Steam Cloud を有効にしていた

この2点以外に一貫性は見られませんでした。

開発チーム内で再現できたケースでは、ゲーム終了後にSteamがCloudへデータをアップロードする際に、
Steamランチャーをその途中で終了させた場合に、稀にセーブデータが消失するケースが確認されました。

このような場合、ゲームがセーブ情報を読み込もうとした際に、
データが破損または不足していると、初回起動として扱われる可能性があると考えています。

恐れ入りますが、一時的な対応策としてSteam Cloudの無効化をお願い申し上げます。
今後も引き続き調査・改善に努めてまいります。

▼ Windows Defender によるウイルス誤検知の報告について
一部のユーザーより、Windows Defender が本ゲームを「Trojan:Script/Wacatac.C!ml」として検出するという報告を受けています。

念のため、ウイルス感染の可能性を排除するためにコード全体を精査しましたが、
ウイルスやマルウェア等の不正なコードは一切確認されておりません。

したがって、これは誤検知であると断定しています。

「Trojan:Script/Wacatac.C!ml」とは？
この名称は、Microsoft Defender が「何らかの疑わしい挙動を示すプログラム」を検出した場合に
広範に用いられる汎用的な判定ラベルです。

Script：JavaScriptやVBScriptに限らず、あらゆる形式のプログラムが対象となります

Wacatac：特定のウイルスファミリーではなく、機械的に“怪しい”と判断されたものに付けられます

.C!ml：これは機械学習により検出されたことを示す接尾辞です

すでに、Microsoftには誤検知であることを報告済みです。

今後も状況を注視し、必要に応じて対策を講じてまいります。
ご迷惑をおかけして申し訳ございません。ご理解のほど、よろしくお願い申し上げます。

[Imphobia]

I lost many times my game progress at this point. To me it seems more likely to happen (not always) after i save my replay and exit the game.
I noticed the backup folder the other day and was able to restore a previous save from it.
I have turned off cloud sync and the issue didn't seem to reproduce since but now I do have have every so often tgm4.exe crashing upon exiting the game.
Don't know if it helps but i figured out I would let you know.

[Ahruna]

Originally posted by Imphobia:

I have turned off cloud sync and the issue didn't seem to reproduce since but now I do have have every so often tgm4.exe crashing upon exiting the game.

For me, the issue only showed up after I turned off cloud sync. I turned it off for 1.1.0 update and since then I lost my save twice. So it seems like it can happen when it's turned off, too.

[zaphod]

Windows defender’s wacatac detection has “boy who cried wolf” level of paranoia. It false positives so often that you are likely to ignore it when it is not one. I can just imagine a little kid going “it’s really Watatac this time! Honest!!!”

The other one people have seen is Bearfoos, and that one is ALSO a ml definition and it usually trips when you open save directory. It is also a false positive.