Fire Emblem 64 was a cancelled Fire Emblem game for the Nintendo 64DD. It was first mentioned in July 1997, in an interview with Shigeru Miyamoto. One year later, in September 1998 Fire Emblem 64 was officially announced in various Japanese gaming magazines. However, two years after that, in September 2000, the game was cancelled and instead development was moved onto Fire Emblem: Ankoku no Miko, which was later renamed Fire Emblem: Binding Blade. No information or even screenshots were ever revealed for this mysterious title.
No information is known if this game was developed into a current title, speculation often favors it either being Binding Blade, due to its nearness in development time, or Fire Emblem: Path of Radiance. However the is absolutely no evidence as no media or assets from the game were ever shown.