Historically, developers used the .NET BinaryFormatter class to convert object graphs into a compact binary stream. While Microsoft has deprecated this method due to security vulnerabilities, hundreds of existing Unity games still utilize it.
Press Win + R , type %USERPROFILE%\AppData\Locallow , and press Enter. Unity games organize files here using the developer’s name followed by the game’s title:
Open the file in the hex editor. Look at the right-hand decoding column. You will often see variable names listed right before raw byte values. unity save edit
To optimize performance and reduce file sizes, developers often serialize C# data structures directly into binary format using BinaryFormatter (though deprecated in newer Unity versions due to security risks) or custom stream writers.
// Update position before saving SaveManager.Instance.currentData.position = transform.position; SaveManager.Instance.SaveData(); Historically, developers used the
Plain text files that are highly readable. They format data in structured key-value pairs (e.g., "player_health": 100 ).
Never edit a live save file. Copy it to a desktop folder before touching a single line of code. Unity games organize files here using the developer’s
If the save file is a .json or .xml file, you can edit it using a text editor like Notepad++ or VS Code. Find the file in AppData\LocalLow . Backup: Always make a copy of the original save file.