As the survivors battled the harsh environment and competed for the scarce resources that keep them alive, another peril emerged from the depths. Nuclear radiation not only decimated the human population, but also distorted the fabric of nature. The intense radiation released during a nuclear war triggered rapid and violent genetic mutations, resulting in the emergence of fearsome and deadly beasts. Lethal radiation mutates ordinary animals into creatures of unimaginable ferocity. These once-familiar creatures now have become the apex predators, ruling this new world.
Some have grown to gigantic sizes, taller than they should have been, while others have transformed into agile predators, capable of moving very fast for short periods of time. These mutations give them greater strength, allowing them to overpower and tear apart their prey with ease.
Some birds flying in the dark sky have grown sharp beaks and claws. Their wingspan has been increased, giving them unrivaled agility as they swoop through the air and attack violently.
Even small as insects, they have also evolved monstrous forms, their once-delicate skeletons now adorned with armored carapaces and poisonous appendages.
These mutated creatures have adapted to harsh environments much easier than humans, and thrive in places where non-mutated counterparts find it difficult to survive. They are highly resistant to radiation and able to forage food from desolate lands, allowing them to survive and reproduce in this new world.