DarkLordMalik
Member
Hollow Fragment sold a total of 450,000 units worldwide. In Japan, sales were about 280,000. In Asia, 90,000. And in North America, the game sold about 70,000 units.
http://gematsu.com/2015/01/sword-art-online-lost-song-developed-artdink
I think the numbers are pretty damn impressive for an exclusive on the Vita. Not to mention the Engrish translation.