 Project Sylpheed was first released in Japan on September 28, 2006; Square Enix published the game with only Japanese text and audio. Microsoft Game Studios handled the releases for Europe and North America, localizing Project Sylpheed for the English-speaking market. Voice actors of the Western anime industry were brought in; Vic Mignogna — whose credits included Fullmetal Alchemist and The Super Dimension Fortress Macross — voiced Faraway, and Kari Wahlgren — who voiced characters in Blood + and Final Fantasy XII — provided Bernstein's voice. A demo of the game, providing a single mission and a small selection of the weapons in the retail version, was available for downloading over Xbox Live on June 14, 2007, and the game went on sale outside Japan two weeks later. On July 25, the game's downloadable content was made available for free on Xbox Live.
