Recommendations Apocalypse

[LimitBound]

Hello, since my last post hasn't gotten any suggestions on it I'll try this again with a different recommendation.

I'm looking for an apocalyptic novel where the main protagonist is a villain(lacks morals) preferably female protagonist. But male is fine too

Like a genuine villain though

Anyway like last post here are the tags I do not wish to see:
Harem
Romance
Smut
Etc

Thanks in advance.