The year is unknown
As far as the populace can tell it’s been at least a century since the blast. The details are fuzzy and the truth is elusive. The world is in disarray. Townships stand alone and only those who are brave or foolhardy step out of their homes to venture out into the wasteland. Raiders and gangs patrol the roads, waiting to ambush anyone who crosses their path. Merchants travel in caravans for safety and even then sometimes end up missing or lost or worse. Creatures howl in the night and attack with vicious savagery over meals and territory.
The world is taking back what it can and plant life is beginning to make it’s return, but utopia is still a long ways off and survival is an adventurer’s greatest plight.