Try the Green mod, the barbarians have chariots, they really are b***ards! Once you can survive these the raging barbs on vanilla are quite easy to cope with.
Mansu is the best against barbs, the skirmisher kicks butt.
Fortify your city with 2 of these guys, as you build more fortify them on hills or even better on forest hills, always in pairs. This should allow you to at least mine the hills. - Stay off the plains and grasslands, your units will die.
Starting with a sea resource is also beneficial as the barbs don't have boats for a while. Also you can use the sea to found new cities more safely.
I find that barbs concentrate more on your staring city and if you build a distance away (via the coast) they tend to ignore it for a while.
Mansu is the best against barbs, the skirmisher kicks butt.
Fortify your city with 2 of these guys, as you build more fortify them on hills or even better on forest hills, always in pairs. This should allow you to at least mine the hills. - Stay off the plains and grasslands, your units will die.
Starting with a sea resource is also beneficial as the barbs don't have boats for a while. Also you can use the sea to found new cities more safely.
I find that barbs concentrate more on your staring city and if you build a distance away (via the coast) they tend to ignore it for a while.