Society driven by the interactions of a small collection of mutually exclusive but geographically unbounded power structures. "I'm a worker of the Arasaka corporation"
The society believes itself to be in a Boom, but it isn't sustainable or stable. Ex: 1920s, mid-1980s
Society is located within a vast region which is too large to monitor entirely. This category could include undersea or virtual environments.
Mass production, steam power, telegraph, railroad, zeppelin, ironclad warships, dynamite, repeating handgun, direct current electricity, germ theory of disease, anesthetics, vaccines
Industrial Revolution (TL 5)
Travel, Do-gooding, searching for wealth and excitement
Heroic characters in a high-action world
Otherwise normal animals with human-like intelligence