Manifest Destiny is an achievement in State of Decay, awarded for establishing eight Outposts. This is only possible once the Snyder Trucking Warehouse or Trumbull County Fairgrounds have been established as the survivors' home base, as only these two home base locations allow eight outposts.
- The name of the Achievement refers to the public sentiment of the late 1800s in America that settlers were destined to settle the entirety of North America, from the Atlantic to the Pacific ocean. As a result of the belief in manifest destiny, a massive settlement push arose in the young United States, prompting widespread population movement westward and the establishment of numerous cities. It also led to the passage of the Homestead Act, which was a stimulus for western colonization, and ultimately contributed to clashes between settlers and American Indian nations in the Great Plains and other regions.