Germany is the biggest PC country in the world (IE has most PCs in comparison to consoles).
Sweden is fairly big on PC too, I think PC gaming > all consoles combined.
AoC is also made by a Norwegian company, and Norway-Sweden likes buying stuff made from the other country, so it should have a nice boost there.
http://www.vgchartz.com/games/userreviewdisp.php?id=261
That is VGChartz LONGEST review. And it's NOT Cute Kitten DS