Desktop as an immersive application techniques are described. In one or more implementations, an immersive environment module is configured to provide an immersive shell through which a user may interact with applications of a computing device. The immersive environment module is further configured to provide a desktop shell within the immersive shell to support additional techniques for interaction with the application of the computing device. The desktop shell, for instance, may be configured for accessibility similar to that provided to applications in the immersive shell.