Children of slaves are born into the same caste as their parents, though it is possible for individuals to be elevated should they show strength and ability that would better serve the Empire in a more distinguished role. The ranks of slaves are typically made up of those who fall outside the traditional Imperial power structure: prisoners of war, criminals and aliens from conquered worlds. As the lowest caste, slaves perform menial duties and backbreaking labor, and they possess virtually no rights or recourse under the law. However, instead of slaves being bought and sold merely on an individual basis, the custom has been fully incorporated into the hierarchy of Imperial society.

In contrast with the Republic, which officially condemns the practice, slavery is widely accepted across the Empire. It is located on a shelf on the upper level of the room where the Sith Warrior skill trainer is. This can be found on the second floor of the Sith Academy.