..."Towards the end of the war, the blackout occurred, and society collapsed. Chaos reigned over the known world, and men became beasts.
Over time, some survivors decided to meet together and establish small towns.
The others became nomads. Hardened for survival, they are hostile to those who do not belong to his tribe.
Be aware not to travel very close to the cities. That is their preferred habitat.
If on your way you find one, RUN, because he won't be alone. ..."

-Master chief of the explorers.