User blog comment:SlyCooperFan1/Acepedia Update: Explanation & the path forward/@comment-12664470-20140220061724/@comment-1824272-20140220141914

Shattered Skies and The Unsung War are the worldwide names except for Europe. Seeing as how Europe is the outlier here, those are the names we'll be using. That's why there's a section in the infobox for other names of the game in other regions.