Start finding out where publishers come from. Seperate the American publishers from the Japanese. Go to Metacritic and put a search for each publisher and cut out games lower than a certain percantage you deem to equal shovelware. Get the amount of titles released, and maybe a metacritic average on all applicable titles released. Come here and get the sales for the games, looking at both markets. Combine the american publishers and combine the Japanese publishers. That should about do it, but it's a lengthy project I must say. Good luck with it.








