Ubisoft has announced today that Valiant Hearts: The Great War, will release on September 4th for iOS devices. Set during World War I, the puzzle-adventure game features characters whose narratives are interlinked. Players aim to survive the trenches alongside their canine companion. The new mobile version introduces intuitive touch controls that accommodate the format of mobile devices. Upon release, Valiant Hearts: The Great War for iOS will be available through the App Store….