binary-save-system.md

Binary Save System in Unity

Overview

A Binary Save System stores game data in a compact binary format. Compared to JSON, binary files are smaller and more difficult to edit manually.

Advantages

• Smaller file size
• Faster read and write operations
• Better protection against casual editing
• Suitable for large save files

Limitations

• Not human-readable
• Harder to debug
• BinaryFormatter is obsolete in modern .NET and should not be used for new projects

Common Use Cases

• RPG save data
• Player inventory
• Game progress
• World state
• Large game saves

Best Practices

• Use modern serialization methods instead of BinaryFormatter.
• Store save files in Application.persistentDataPath.
• Validate save data before loading.
• Keep backup copies of important save files.
• Include a save file version number for future compatibility.

Security Tips

• Encrypt sensitive save data.
• Never trust modified save files.
• Validate loaded values before applying them.

Additional Resources

Explore more Unity development tutorials and complete Unity game source code projects:

https://unitysourcecode.net