[@rezay] As much as I'd love to accept the agriculture thing, having livestock and workable agricultural lands which can grow all these crops would put you miiiiiiiiiiiiiiiiiiiiles ahead of everyone else. The ruins that NJ lives in can hardly sustain any sort of farmland - few places outside of the Haven biome can.

For example, where did the seeds for these crops come from? Ruin biomes are leftovers of megacities and wouldn't have natural plains of wheat, corn and potatoes that hadn't already been snatched by mutants or roaches. What forests there are there wouldn't necessarily have fruit trees, and whatever animals live in these forests would have to be tamed and domesticated. Have they kept animals inside the bunker with them all these years? How have they not died from inbreeding, starvation or the Jerichians eating them all? 

It's nice that you're motivated to write all this lore for your civ, but keep in mind that they only just recently came out of a bunker into a world that is virtually Mad Max/Fallout/Chernobyl/Megacity 1 mixed into one. Resources of all kinds, especially food and water, are rare as all hell and coveted by literally everyone.