After Unity announced in March that it was beginning to work with Facebook to help bring web games using the engine to the social network, Facebook announced today that it’s releasing a new SDK ...

Thanks in part to the new Unity partnership, Facebook games may eventually take on Steam and other desktop gaming platforms.

The barrier to entry for the Unity game rendering engine for developers on iOS, Android and BlackBerry 10 has gotten lower, as use of Unity tech is now free on both mobile platforms.