After the Asteroids impact, their power seeped into the planet, changing its landscape and turning natural environments into living organisms attempting to kill anything that lives within their domain. Life on Earth had two choices: take shelter within the safe haven cities created by the Asteroid entities or learn to survive in an inhospitable home.
While most took to the cities, a few chose to make a new life for themselves out in the dangerous Wilderness. However, no matter where residents live, learning how to survive in the Wilderness is a requirement for all the planet's residents as nearly everyone at some point in their life will find a need to travel, hunt, or adventure away from their home. While difficult, survival is not impossible. But venturing into the Wilderness without the correct knowledge is, in most cases, a death sentence.