The Dark Fleet was the former Vasari Empire's naval fleet, apparently used to expand the empire's domain. It seems that each system that the Vasari conquered was assigned a wing of the fleet. The Dark Fleet was all but destroyed in the Empire's final days, as the entirety of its vessels were destroyed by an unknown threat chasing the Vasari. Due to the size of the Empire, as the manual describes it as having "hundreds of worlds", the fleet must have been massive and very powerful.