Application submission process
If we are confident that our game will pass all certification, we can go ahead and submit it. First of all we must have a valid Dev Center subscription. This costs $99 per year, and Chapter 1, Getting Started, describes how we can get one. If we have a valid subscription, we can submit our games via the Dev Center dashboard. This means uploading the XAP file that we can find at [project path] /Bin/Release
to the Dev Center Dashboard. Uploading is done in the following steps:
Uploading our game and specifying a name and a version, along with several screenshots of the game.
Describing our game.
Determining price.
Providing optional testing instructions.
Submitting.
A detailed walkthrough of the submission process can be found at http://msdn.microsoft.com/en-us/library/windowsphone/help/jj206724(v=vs.105).aspx.