Xerxs Works is a space station and factory in a remote corner of the Nile Galaxy where Xerxs that serve Octavian are made, although it is likely one of many such stations as other episodes imply. Yosira, Cleo, Akila, and Brian work together to destroy the facility in the episode "Xerxs Works", dealing a blow to Octavian and serving as a victory for P.Y.R.A.M.I.D. as an annoyed Khensu explains.
This location, in deep space, as are the Gentle Palms Space Station and Resort and RepliCamp, is found by accident by Brian and Akila on a routine mission charting space. It is shaped like a ball and has similar symbols to those on Xerxs, with a vast area inside for construction of these robots.