Planet Aquamarine, Vlamuin Continent, Verdigris Spine
In the post-apocalyptic world of the planet Aquamarine, nestled between crumbling tectonic scars and shrouded by an ever-churning sky, lay the Verdigris Spine. A vast, serpentine mountain range veiled in toxic mists and teeming with mutated life, which was a result of the Super Evolution Virus and overusage of the Nuclear Weapons during the Apocalypse on the planet Aquamarine.
The nations that existed previously had tons of Nuclear Weapons, and they didn't shy away from using them. On the contrary, when the Apocalypse started, once the Super Evolution Virus broke free, the nations around the world started haphazardly using their Nuclear arsenals.