Unabashedly, this is the setting of Primordia - a post-apocalyptic wonderland where after an unknown event, all of mankind has been wiped out, land masses have gone barren, and only the robots live on. In place of a stereotypical collective of non-emotional droids, the automatons have developed into a populace of morality and beliefs. Even going as far as to remember the human race as a single entity, Man, their creator and god and in his worship the droids believe it to be their eternal duty to maintain the planet as best as possible. But not everyone shares in the values.
[Stew Chyou, Thunderbolt]