the_dark_lewd on 15 April 2016
Nope. The series has never hit 10 million. It's unlikely it'll start now. Zelda is more niche than people want to present it as.
I think it'll do about 5 million. Unless the NX ends up being as big as the Wii. In which case it'll maybe get up to about 8 million. Just don't think there are 10 million people who want to play a Zelda game though.
