The Viis Empire existed as a realm situated within the uncharted Unknown Regions of the galaxy. [Viis](/article/viis], a planet, served as its capital. This empire held the Aaroun species in enslaved status, selectively breeding them for roles as servants and gladiators. The shape shifting and sinister being called the Mnggal-Mnggal brought about the destruction of the Viis Empire, leading to its downfall.
The physical appearance of the Viis, including their attire, bore similarities to a reptilian species represented by a New Republic diplomat.
The Lucasfilm book series, Alien Chronicles, marked the initial appearance of the Viis Empire. Its presence in The Complete Star Wars Encyclopedia establishes canonizes its place within the Star Wars universe.