XFX, or XNA for XBOX is an implementation of XNA 4.0, written in C++ for Microsofts XBOX console. It's written on top of OpenXDK, the open source, free, legal XBOX Development Kit.

XFX is an attempt to bring development for the original XBOX console to the masses by wrapping all low-level code in the familiar XNA classes. Being written in C++ allows XFX to be lightweight and as close to the hardware as possible.

Compiling XFX requires at least OpenXDK version 0.7

As of this writing, XFX Contains the following libraries:

• libmscorlib - Provides the necessary classes found in mscorlib.dll to support the other libraries
• libSystem - Implements any types in the System.dll required by the other libs
• libSystem.Windows - A re-implementation of the System.Windows.dll found on Windows Phone, to allow the creation of GUI-driven applications
• libSystem.Xml - Implements the functions found in System.Xml.dll and System.Xml.Serialization.dll
• libXFX - Implements the functions found in Microsoft.Xna.Framework.dll
• libXFX.Game - Implements the functions found in Microsoft.Xna.Framework.Game.dll

XFX Supports loading assets both from precompiled .XNB files and most XNA-compatible formats.