Factorio Achievements Re-Enabler

A Python script to re-enable achievements in your Factorio save files by patching specific flags.

Features

• Scans and patches level.dat files within a Factorio save.
• Searches for patterns associated with disabled achievements (cheat-will-disable, editor, command-ran).
• Dry-run mode for previewing changes without modifying files.
• Automatically creates backups before applying patches.

Usage

python factorio_achievements_reenabler.py /path/to/your/save.zip [--patch]

Arguments

• /path/to/your/save.zip: Path to your Factorio save file (usually a .zip file).
• --patch: Apply the patch to the save file. If omitted, the script runs in dry-run mode.

Example

Dry-run mode (default):

python factorio_achievements_reenabler.py ~/Factorio/saves/my_save.zip

Apply patch:

python factorio_achievements_reenabler.py ~/Factorio/saves/my_save.zip --patch

How It Works

1. Extraction: Extracts your save file to a temporary directory.
2. Scanning: Searches for level.dat files containing flags that disable achievements.
3. Pattern Matching: Looks for specific byte patterns and outputs hex dumps for debugging.
4. Patching: Modifies the necessary bytes to re-enable achievements (when --patch is used).
5. Backup & Repackaging: Backs up the original save and repackages the modified save.
6. Cleanup: Removes temporary files and directories after completion.

Safety Precautions

• Automatic Backup: The script backs up your original save file with a .bak extension.
• Dry-Run Mode: Preview changes without modifying any files by default.
• Recommendation: Manually back up your save files before running the script.

License

This project is licensed under the MIT License.

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Feel free to customize and extend this script according to your needs.