Klepacki's next project was a game collaboration by SEGA and Petroglyph named "". As of December 2006, he had composed several songs for various factions and enjoyed the "opportunity to create something new again, not based on...existing intellectual property. Klepacki "began by taking into account what songs were identified as fan favorites in...past related work". He was interviewed about the creative process on 27 March 2007 by Kevin Yu, a Petroglyph community manager, and provided a detailed tour of his studio at the company. His office included one of the fastest computers at Petroglyph and a vocal booth where unit responses and other vocalizations were tested and tweaked before voice actors performed finishing work. Klepacki was glad that Universe of War did not demand strict obedience to a particular style. He declared that surprises were in store for "Command & Conquer" fans waiting for him to return to his "roots" and "adrenaline-pumping soundtrack style", and suggested that they "imagine my mindset...when Command & Conquer first came out, and add about fifteen years experience to that." Klepacki summarized the game's main styles shortly before release: