[Apocalyptic survival + no rebirth + ruthless combat + revenge + no saintly protagonist]
Is the City of Light in the sky humanity's last utopia?
Is the shadowy city on the ground humanity's last refuge?
Does genetic research advance technology for the good of all, or sow the seeds of destruction?
If your cat turned into a bloodthirsty mutant, would you still pet it?
If humans became genetically engineered warriors, would they still be human?
If the protagonist became a half-human, half-mutant monster, could he still be humanity's savior?
