C# Unity Quest ScriptableObject example class

QuestSO.cs

using UnityEngine;

/**
 * Avoid deserializing this class and those derived from it, 
 * as only Unity can instantiate Scriptable Objects - constructor call during
 * deserialization is not allowed.
 **/
public abstract class QuestSO: ScriptableObject
{
    [SerializeField]
    private string id;
    public string questName;
    public string description;

    [SerializeField]
    private RewardData[] rewards;

    public string GetId()
    {
        return id;
    }

    public RewardData[] GetRewards() {
        return rewards;
    }
}