How old do I have to be to use a Nintendo Account with Fire Emblem Heroes? 【Updated: November 09, 2021 09:08】 You must be at least 13+ to use this game with a Nintendo Account. Related articles [Android]Which operating systems support this application? Can I play Fire Emblem Heroes offline? Can I play Fire Emblem Heroes for free? What happens if I link a Nintendo Account and then decide I want to delete the Nintendo Account? What languages are supported?