High Quality Content by WIKIPEDIA articles! Yggdra Union: We`ll Never Fight Alone is a tactical role-playing game for the Game Boy Advance and PlayStation Portable, developed by Sting Entertainment as the second episode of the Dept. Heaven saga of games. Atlus USA localized and published both versions of the game in North America. 505 Games published the Game Boy Advance version in a limited number of European countries, such as Italy and France. A Nintendo DS side-game was released in Japan on December 3, 2009 as Yggdra Unison: Seiken Buyuuden.