My first problem is the upgrade system of some buildings. For instance in the original Rome, you could build sewers, then public baths, then aquaducts and finally double aquaducts. The stupid thing is that it seems that the sewers are demolished for public baths and the public baths in turn for aquaducts. Why can't I have sewers, public baths and aquaducts at the same time? Shogun II example, you can't have barracks and a hunting lodge in one city.
Soltution: Very simple, no upgrade system if the buildings are different and you can all build them independently.
That might give a problem with if CA decides to create building slots as in Shogun II. Building slots feel artificial and a non realistic limit for the construction of buildings.
Solution: Get rid of them.
Now to continue with building upgrades. First to continue with my first example: with aquaducts it seems logical in my mind that you could improve a aquaduct by building another layer on top of it, as if you're adding a new lane on a highway. Stupid thing is that I then first need to build a single aquaduct and then immideatly upgrade it to a double aquaduct, if squalor is high. That's like building a 2X2 highway and then need to upgrade it to a 3x3 if you know beforehand that a 2x2 highway can't handle the traffic demand. Another random example are city walls. First I need to build a wooden wall, then one from stone and so on. Kind of stupid if the situation demands the construction of large stone walls as soon as possible.
Solution: You could skip some upgrades and build the thing that is most suitable for demand. From there you can still upgrade it. And upgrading is cheaper then construction from scratch.
Does anyone agree with me?
