cities aren't too strong, i think they're nicely balanced at the moment. if anything they're even on the slightly weaker side to how I'd prefer.
With several artillery, archers and melee units with the city bonus promotions along with ship bombardment you can take a city in one-three turns.
cities are supposed to be hard to take. go try taking an entire city in real life with just one platoon LOL.
Make sure you're using the right units for the right job. It's no use trying to take a city with a unit that has flanking bonus instead of city attack bonus for example. Same goes for artillery units, get those siege promotions.
I took 80 damage, as Babylon with a Bowman in a forest, a 12 Combat Strength Composite bowman replacement against a walled capital. 80 damage! I can't maintain a siege when the enemy can basically knock a unit off the board within two tiles, every single turn. My UU Spearman was barely doing better, taking high 60.
City bombardment is far too strong. Cities should be far more vulnerable to land forces and fall fairly easily if you take out all the defending units. At the moment, you have to have multiple siege units and lots of infantry with drill, because the city will quickly murder the siege units when they get in range.
@Drakle It was probably a tradition capital, correct? Tradition is supposed to be very defensive I guess, and has it's tradeoffs of course.
So, are you Babylon or are you facing Babylon? I'm confused because you said you have a UU Spearman.
Either way:
What difficulty are you playing?
The Babylon Bowmans are very useful, they have indirect fire and this can be used in very interesting ways to defend and to attack from positions where nothing can attack them. If you're facing them... Watch out. If you're using them, try to put them in a position where the city can't attack them (they don't have indirect fire yet).
To conquer a city with walls you need siege machines, you can't expect to break walls with arrows haha... If the target is called "Babylon" it is preferable not to fight them as the classical era is the height of their defensive power.
There are other factors to consider:
1) What Pantheon got your enemy?
2) Tradition?
3) City on Hill?
Tradition yes. More health would be fine. But not essentially acting like a ranged unit an era or two ahead. Their own composite archer did about a fourth of the damage.
3rd and 4th UC mod. Babylon gets a UU Spearman. My target was the Celts.
And this isn't about attacking the city. This is purely about the city pummeling my units.
No doubt a capital with tradition is quite capable of doing that damage at that stage of the game, that's why siege machines are necessary.