Homeworld's closing theme "Homeworld (The Ladder)" was composed by the British progressive rock band Yes for the game. It was originally released on the band's 1999 album "The Ladder" eight days before the release of Homeworld. The collaboration was spearheaded by lead singer Jon Anderson who wanted a piece of Yes' music to be worked into a video game, which resulted in the band discovering and becoming interested in Homeworld's plot and development, writing lyrics that fit with the themes of the game such as "thoughts that we're all trying to find our way home". Sierra Studios CEO Alex Garden commented that they tried to do as much as they could to tie the real world into their games to enhance the experience and provide a grounding in reality, and that the collaboration with Yes just came together with that philosophy.