Kongfucius on 17 December 2013
I suspect we'll just have to get by with rough approximations based on physical sales and official statements from publishers.
In Japan where there are sort of semi-official trackers like Media Create, Famitsu and Dengeki I'm a little more hopeful - Famitsu are publishing digital sales beginning in the new year, so they obviously have some sort of deal with the platform holders or publishers.
However given that Vgchartz isn't so well known, I'm not sure if they could do something similar
