Kingdom Hearts: Birth by Sleep

Kingdom Hearts Birth by Sleep is a 2010 action role-playing game developed and published by Square Enix in collaboration with Disney Interactive Studios for the PlayStation Portable, serving as the sixth installment in the Kingdom Hearts series. The game was released on UMD worldwide in 2010. An international version of the game titled Kingdom Hearts Birth by Sleep Final Mix was released in Japan in January 2011, featuring the changes made in the non-Japanese versions. A direct sequel, Kingdom Hearts 0.2: Birth by Sleep - A Fragmentary Passage, was released in January 2017 as a part of a bundle of games called Kingdom Hearts HD 2.8 Final Chapter Prologue. The game utilizes an overhauled battle system different from previous games in the series which features new elements. It is a prequel to the original Kingdom Hearts, taking place ten years before its events. The game centers on the journeys of Ventus, Terra, and Aqua, characters briefly featured in Kingdom Hearts II, in their quest to locate the missing Master Xehanort and protect the worlds from creatures known as the Unversed. The player has access to the three characters' different scenarios when playing. Development of the game began in June 2005, with parts of the game Kingdom Hearts II Final Mix meant to hint at Birth by Sleep. The game was directed by Tetsuya Nomura and co-directed by Tai Yasue. Nomura has referred to the game as "Episode 0", as well as "Episode 0.1" following the release of Kingdom Hearts χ, stating that it is on the same scale and plays as large a role in the series as Kingdom Hearts and Kingdom Hearts II. The game has been well-received, selling 1.27 million copies worldwide as of November 2010, and received positive comments from video game publications. Critics praised the game's gameplay, graphics, music, and storyline, but criticized the level design and characters.

Source: Wikipedia CC BY-SA 4.0 — Kingdom Hearts Birth by Sleep · retrieved October 19, 2026

Text is shortened from the original article; the full version is linked.

Developer

Square Enix

Publisher

Square Enix

First release

January 9, 2010

Series

Kingdom Hearts

Cover

Official thumbnail

Record ID

Q281110