D4 is an episodic video game by Hidetaka Suehiro for the Xbox One. The game was announced during Microsoft's E3 2013 press event. The title represents "Dark Dreams Don't Die" and the fourth dimension.D4 is an Xbox One title that uses Kinect controls with "simple gestures and voice" to uncover the mystery. The game uses cel-shaded graphics similar to that of a graphic novel.