I'm pleased to announce that due to a recent agreement, JSON .NET for Unity is now free! I've submitted a request to the asset store to change the price and asked for expedition. In the meantime, you can download JSON .NET for Unity from GitHub. You'll have to add a reference to UnityEngine.dll and compile yourself for now. https://github.com/ianmacgillivray/Json-NET-for-Unity I will continue to offer support for existing customers.