Ok, so what do you think the Portuguese UHV should be?
The second Spanish UHV could require conquering Naples, Milan, Flanders and holding them until 1700 or so. (A Catholic conquest of England! That WAS the intention up until the armada was destroyed. But 1805, rats! That would have made for a very interesting UHV!

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The English colonial UHV should be pretty late IMO. If I liked playing as the English I'd want the late game to be very significant. England's golden age was in the late 1700's, 1800's onwards, no?
I coulden't agree more! There is a definet lack of cities in North Africa and in Europe, which means that most of the time a Civilizations spawn zone (other than Arabia, Ottomons) won't get any other cities. There really is a chronic needing of extra cities in this mod
Look at this worldbuilder save, its a revised system of Roman roads, and I added some earlier cities. I had an idea, maybe instead of cities to slow the game down, the old Roman settlements could be depicted as villages strewn across Europe. Some are in the map as cities, others as villages, and I even added some locations of ruins for demolished Roman cities. The roads are there, and all names are in Latin. The result is something that looks a lot more Post-Roman.
Other Changes you might notice:
I added some gold in Southern Portugal, because, quite simply, there was lots of gold mining there. I removed parts of the old road system in Byzantium, replaced with the Roman system. Changed the silk plantations in Syria to the silk resource alone. (Why are they like that?)
City Additions:
Byzantium got Trapezus in the Northeast, it's got a larger population than the others, and has a harbor, granary and church.
Attalia in the South, West of Tarsus, it's standard size, and empty. Presumably this and Trapezus will flip to the Turks as Trabzon and Antalya?
Dyrrachium Southwest of the Balkans, larger pop, harbor, granary, church.
Byzantium got Memphis(Cairo) Maybe we could include the pyramids which will give Byzantium some much needed stability. This would flip to the Arabs.
I've come up with an idea for Byzantium. There are lots of new cities in the med sea, on the very second turn, we could have all of them flip to Byzantium. The Byzantines would get more of North Africa, Sicily, Southern Italy, Sardinia, and a slice of Southern Spain. This would simulate the conquests of Belisarius (500-565), and give Byzantium super-high stability for a while. Or, the flips could be coded to come in waves, with the territories being gained as Belisarius conquered them. This would give Byzantium even more prolonged stability. AND all the extra cities will speed up the inevitable collapse which will happen at around 700/800 with this system.
The rest of the cities added are pretty much self explanatory, you can figure out what they are by the names.
EDIT: It says invalid file, how do I upload a worldbuilder save?