Triptych (Download Edition) Language Patcher

This tool is a text dumper and patcher specifically designed for the Download Edition (2014) of the Visual Novel Triptych, originally developed by ALcot in 2006.

It allows you to extract Japanese scripts from the .arc containers, translate them into a YAML format, and re-inject them back into the game.

Information

• Original Release: 2006 (ALcot)
• Target Version: 2014 Download Edition
• VNDB: https://vndb.org/v537
• Format: AZSys .arc (ASB script files)

Features

• Dump: Scans and extracts Japanese strings from encrypted ASB files within the script archive.
• Patch: Injects translated strings from a YAML file while handling ASB re-encryption and CRC32 recalculation.
• Check: Diagnostic tool to analyze ARC headers or compare two archives to ensure file integrity.

How to use

1. Requirements

Ensure you have Python 3.x and PyYAML installed:

pip install pyyaml

2. Setup

Place the game's script.arc file inside the tool's root directory.

3. Extracting text (Dump)

Run the following command to generate a script.yml file:

python patcher.py dump

This will create a backup of your original archive named original_script.arc.

4. Translating

Open script.yml with any text editor (VSCode recommended). Translate the values on the right, keeping the keys (File:Offset) intact.

Note: The patcher uses CP932 for Japanese and ASCII for English to avoid encoding issues.

5. Applying the patch

Once translated, run:

python patcher.py patch

This will update script.arc with your new text.

6. Diagnostics (Optional)

To compare your modified archive with the original or analyze its structure:

# Analyze a single file
python patcher.py check script.arc

# Compare original vs patched
python patcher.py check original_script.arc script.arc

Credits

• Author: Sammwy
• Research & Tools: - GARbro (Format reference)
• HxD (Hex inspection)