Edit ((install)) — Unity Save
Do not alter the surrounding punctuation, quotes, or formatting, as this will trigger a loading error. Save the file. Step 4: Deal with Registry-Based Saves (PlayerPrefs)
If the file contains unreadable blocks mixed with legible variable names, it is likely a .NET binary stream.
If you open a save file and see structured, readable text, you are in luck.
We need a plain C# class (not a MonoBehaviour) to store our variables. We must mark this class as [Serializable] so Unity knows it can be converted to a data stream.
We will create a static class called SaveSystem . This class does not need to be attached to a GameObject; it exists purely to handle logic. unity save edit
JSON is the most popular format. Here is how to edit it safely:
Start small: locate a save file from a simple Unity game, open it in Notepad++, and change a single number. Then gradually work your way up to binary files, Base64 decoding, and finally – if you’re brave – decompiling the game’s scripts.
Do not use default Windows Notepad, as it can ruin file formatting. Editors like Notepad++ handle large files smoothly and feature syntax highlighting. Hex Editors (For Binary Files)
Disclaimer: This article is for educational purposes. Modifying game files can violate Terms of Service and corrupt data. Do not alter the surrounding punctuation, quotes, or
If you find a number you want to change, note that integers are usually stored in hexadecimal and reversed (Little Endian format). For example, the number 500 is F4 01 in Hex Little Endian.
Depending on the save format, you will need specific tools to safely read and edit the data:
Copy the secret cryptographic key and initialization vector (IV) found in the code. Write a quick script in Python or use an online tool like CyberChef to decrypt your save file using that key, edit the resulting JSON text, and re-encrypt it using the same key.
string json = JsonUtility.ToJson(data); File.WriteAllText(Application.persistentDataPath + "/save.json", json); Use code with caution. Copied to clipboard If you open a save file and see
Binary serialization is a more robust method for saving complex data structures in Unity. Here's an example of how to use binary serialization to save and edit a custom data class:
Double-click the key. Switch the base setting to (instead of Hexadecimal).
NEVER edit a save file without making a copy first. If you corrupt the file, your save is gone. Open the File: Open the .json or .save file with Notepad++.
: Include a version number in save files to prevent crashes when the game's data structure changes during updates. Encrypted vs. Human-Readable