Barb type is affected by certain techs.See Keenans Barbarian Paper.I'll look for a link later.
Huts in city radius will never give barbs.
Placing a worker on hut makes it dissappear unentered.Bad.
Advancers will only come from huts on grassland or plains.More often than not there will be special within 2 squares of the city square.Also,more often than not,there will be 2 more just out of reach forcing disbandment and relocation.
nearest city yours=supported unit
nearest city foreign=NON unit
gold-minimum-25
maximum-200
Yes.No tech after Invention.Although there have been a few reports of very advanced techs.Unsubstantiated.
Apparently,in MP,lag can make it so a hut can be entered numerous times.I'll let someone else explain the technique as I do not wish to encourage this.
A few theories about wandering nomads I have seen:
You can only have one at a time-this not true but I found in testing that you were approx 2/3 more likely to get one if you didn't allready have one.
You can only have 1 per landmass.this is also not true but pretty acurrate.My unscientific testing went close to 2/3 more likely to get a nomad on a particular landmass if one was not there allready.But I have seen 2 nomads from huts consecutively on the same landmass without founding a city with the 1st one.
You can't find more than your current # of cities.This one does stand up but I don't really think it the exact formula.