The Oops! Framework includes many game services and components that extend Microsoft's XNA Framework. The most noteworthy of these components is an easy to use 3D Physics game component/framework that runs on Windows...and XBOX 360!!!

XNA fixed shooter based on "Galaga". The game is executed completely in 3D however all of the action happens in the X-Z plane. Note, this game requires installation of the Microsoft XNA Runtime and is currently a Windows application.

Sky Burner XNA Game

Xen helps you write faster, more reliable code by providing robust alternatives for many parts of the XNA Graphics API.