Facebook Cross !
Facebook Windows Store and Windows Phone Plugins For Unity makes it easy to integrate social features to your game !
★ Facebook Windows Phone compatible with Official Facebook SDK !
★ Write a single line of code. And plugin will do everything.
★ Continue to code in C#
★ No need for server side scripting
★ No need to install extra things like Official Facebook SDK.
★ Keep players in full-screen mode with native .NET dialogs
★ Excellent Log System.
★ Excellent integration to Unity.
★ Support tool activated in Unity also you can ask any question here