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JSON Save System in Unity

Overview

JSON is one of the most popular methods for saving game data in Unity. It allows developers to serialize objects into a readable text format.

Advantages

  • Human-readable
  • Easy to debug
  • Supports complex data
  • Cross-platform

Limitations

  • Larger file size than binary
  • Not encrypted by default

Example

string json = JsonUtility.ToJson(playerData);
File.WriteAllText(path, json);

string loadedJson = File.ReadAllText(path);
playerData = JsonUtility.FromJson<PlayerData>(loadedJson);

Best Practices

  • Save files in Application.persistentDataPath.
  • Validate data before loading.
  • Create backups for important save files.