ScsUnitDecrypt

Decrypt ETS2 / ATS Save Files with g_save_format 0

---

📦 Overview

ScsUnitDecrypt is a tool for decrypting save files from Euro Truck Simulator 2 and American Truck Simulator that were saved using:

g_save_format 0

This setting stores save data in a binary SII format, which this tool can convert back into a readable text format.

---

🖥 Console Usage

ScsUnitDecrypt [input_file_path] [options]

🔧 Available Options

Option	Description
-o, --output <path>	Writes the decrypted content to the specified file path instead of overwriting the original.
--only-remove-encryption	Only removes encryption. If the save file is already in format 0, this results in a still-encrypted binary file without further decoding.
--float-comments	(g_save_format 0 only) Adds comments next to float values for better readability when values were originally in hexadecimal.
--help	Displays the help screen.
--version	Displays version information.

---

📚 Library Usage

If you're using ScsUnitDecrypt as a library in your own C# project:

🔨 Basic Usage

var decoder = new UnitDecoder();
decoder.DecodeToFile(inputFilePath); // Overwrites original

📝 Output to New File

decoder.DecodeToFile(inputFilePath, outputFilePath); // Keeps original untouched

⚙️ Options

You can pass DecodeOptions into the constructor to customise behavior:

var options = new DecodeOptions
{
    WriteFloatComments = true // Add comments next to float values
};

var decoder = new UnitDecoder(options);
decoder.DecodeToFile(inputFilePath);

---

📦 Dependencies

• CommandLineParser
• Fody
• Costura.Fody

---

🙌 Special Thanks

• František Milt – Creator of SII_Decrypt, which served as a reference for this tool.