The demo of Mass Effect 3 coming on 14 February will be devoted to massively multiplayer sector called "Galaxy at War" and for this reason was not available to those who had not subscribed. Microsoft said that with the download of the demo will be offered to all Silver limited access subscribers ' privileges for Gold just play online together with other friends and try out the multiplayer. Have not been clarified nor how they will provide this sort of pass nor how long precisely: I will update about it.