Ratfolk are the largest mutant species to emerge after the Great Disaster.
Some rats underwent a strange mutation that increased their size and intelligence. They grew to roughly half the height of humans and developed advanced cognitive abilities.
After gaining intelligence, the Ratfolk studied human technology and built massive underground cities beneath the wasteland.
Ratfolk raiders frequently travel to the surface, using primitive weapons and some salvaged firearms to attack human settlements, gathering resources and recovering lost technology.
Ratfolk possess an extremely high resistance to disease. Almost no virus in the wasteland can infect them.
Their reproduction rate is extremely fast, and some believe that the Ratfolk may eventually become the dominant species of the wasteland.
However, Ratfolk have no unified nation or central government. They exist as countless tribes, and conflicts between different tribes are common.
Ratfolk attitudes toward humans vary greatly. Some see humans as enemies, while others are fascinated by human civilization.
Certain Ratfolk scholars have begun collecting human writings, learning human languages, and recording the history of humanity from their own perspective.