Those who have registered with the ID@Xbox program will soon be given the Xbox One deployment add-on free-of-charge. The deal is open to any developer, not just partners to Microsoft Games Studios.

Developers participating in the ID@Xbox indie program will receive the Unity add-on for Xbox One for free when it launches in 2014, as well as the opportunity to obtain a special Xbox One-only ...

The Unity game engine has found huge success among game developers as it can target Windows, iOS, Android, OS X, Linux, PlayStation 3, Xbox 360, and more.