Famitsu releases digital estimations out of the 30 best selling games of each month of the year, we finally have all 12 months of the year, so based on that these were the best selling digital games of 2017.
In the US
and Europe there are market research firms that release a monthly report about
how the industry is doing, hardware and software sales, these are the NPD Group
and the Gfk. As they are the only companies to do that business in those areas
their numbers are, for the most part, not revealed to the public, that of
course isn't an issue in Japan where we have 3 trackers that release data on a
weekly basis.