Miitomo, Nintendo’s first mobile game, will launch on March 17 in Japan, according to a tweet from Nintendo.

Preregistion is still open at the Miitomo website and will earn My Nintendo Platinum Points for anyone with a Nintendo Account. Miitomo’s English website still lists a March release.

Miitomo is a free-to-play mobile game and is the first of five games announced by Nintendo and mobile partner DeNA. The game heavily features Mii characters and social interaction with other users. The other four games have no details other than a 2016 release date.