End of an Empire is the third vocal album (fifth overall) from electronic rock project Celldweller; it was released in "chapters", like most of Celldweller's previous works. The first of four chapters, Time, was released on September 16, 2014. The second, Love, was released on December 5, 2014. The third, Dreams, was released on March 13, 2015. The fourth and final chapter, Death, was released on July 17, 2015.

End of an Empire is a concept album, set in the world of "Atiria". The narrative focuses on "The Emperor", who is dealing with a failing civilization, brought about by conflict between "Pro-bots" and "Robophobes". Other characters are introduced in each chapter; "Overseer", "Siren", "Dreamcatcher" and "Gatekeeper" (in that order). Other locations include "Deltar", a city within Atiria, and "Helion", home to the "XR-87 Prison System". Currently, little is known about the relationships between the characters and locations, leading to much speculation. According to Klayton, the album is not a follow-up to Wish Upon a Blackstar.

Production of the album started around late 2012, almost directly after the release of Wish Upon a Blackstar, and was formally announced in an update on February 26, 2013. In the update, Klayton stated that "Purified" had been completed and would go towards the then untitled album, though it was instead released on Blackstar Act One: Purified in December that year.

When asked in an April episode of "Ask Celldweller", he stated the upcoming album would be released in chapters, though he did not give a title or a release date, nor any insight into the album's progress.

A few months later, throughout July and August, three snippets were posted onto Klayton's Instagram, they all come from the same song, "End of an Empire", that had been previously mentioned.

Any further news on the upcoming album was sparse until August 6, when a series of images on Celldweller's Facebook page implied a new Celldweller release, this was confirmed on the 12th when one of these images, which previously contained four empty imprints, was reuploaded, containing a blue emblem representing "Time", implying the new release would be split into four chapters, each with individual titles. The new image also confirmed the name of the release as End of an Empire.

On August 14, the artwork and a teaser trailer were released for End of an Empire - Chapter 01: Time, pre-orders went live the same day, though no previews were released.Time consists of five tracks, including "End of an Empire", the previously unmentioned "Lost In Time", and three sound design-oriented tracks, "Factions", but also contains four remixes (of "End of an Empire" and "Lost In Time") and six instrumentals.Time was released on September 16, 2014.

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