Rovers are independent bands of people who follow their herds because they have insufficient water in any one spot to establish a community. Separate groups do not coordinate. Groups are usually less well equipped and have a lower level of technology than post-Change nations.
Joseph Kuttner promised to give a band of Rovers weapons and slaves skilled in bow making in exchange for attacking the Quest. The Rovers attacked the horse buyers from the Republic of New Deseret until driven off by a combined force of Central Oregon Ranchers' Association cowboys and members of the Quest.