Ori and The Blind Forest launched March 2015 and the Definitive Edition was supposed to come out in 2015 but the team confirmed through a tweet that it will come out Spring 2016:

In official news: We want to let our fans know that you can play Ori Definitive Edition in Spring 2016 & will have more news to share soon!

— Ori the Game (@OriTheGame) December 22, 2015

Ori and the Blind Forest is a single-player-only platform adventure video game designed by Moon Studios, an independent developer, and published by Microsoft Studios. The game was released on March 11, 2015 for Microsoft Windows and Xbox One.

Ori and The Blind Forest also got Best Art Direction at The Game Awards 2015.

You can pick up Ori and The Blind Forest for only $11.99 for a limited time right now! Deal is for gold members only