Digits decide the apocalypse, after that, we worldbuild
> The colonization branch of a moderately sized alien megacorp invades earth to terraform the planet and collect genetic material, humans object to that, nukes happen, aliens decide to ditch the planet and come back in a millennia or two when things have cooled down
Psychic ape apocalypse
>>55003509
> China and India go to war, and after a bloody three month stalemate both sides release terrifying bioweapons. Asia becomes a mutant infested irradiated hellscape, the Middle East is almost consumed and millions upon millions of refugees flee the subcontinent, Europe and Africa are being overwhelmed and consumed by the mutant plague, refugee hordes, foriegn extremists and internal conflict.
> After a severe mutant plague outbreak in several major coastal cities, the US has balkanized, and has broken up into hundreds of competing factions, meanwhile the viral mutations spread like wildfire, Western Canada is fighting a Chinese invasion and Quebec has taken the opportunity to secede, and in the absence of external pressure, South America has reverted to a sort of modernized feudalism.
> Meanwhile in Australia, nothing has changed.
>>55003644
Ape hive mind. With psychokinesis
>>55003509
>Let's make a post-apocalyptic setting
Your character's family has been living in North America before 1500.