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TheRighteous

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May 9, 2025
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Rivers navigable by ships?
The current map does not seem to have navigable rivers. IR has them, and EU5 should have them too.
Theoretically, as long as the draft of the ship is small enough, any river can be navigable. But this is a game, so from the perspective of map design, combined with my limited knowledge, I have the following suggestions for the rivers needed for the land I am more familiar with.
1. Yangtze River (blue) The highest priority river.
There may be a small number of ferries in the upper and middle reaches (the army should spend more time crossing the river and there are other terrain penalties), but there should be no ferries in the lower reaches. It is worth noting that in the Three Gorges section (red part), the Yangtze River is famous for its turbulent water speed. The speed of ships going downstream is amazing, and before the emergence of steamships, it is difficult for large ships to go upstream (here a large number of trackers are supported). As long as there is enough navy to prevent the enemy from crossing the river, the Yangtze River will be a natural barrier.
2. Yellow River, Pearl River and other rivers (green) Not as high a priority as the Yangtze River
When the siltation of the Yellow River was not as serious as it is now, the Yellow River also had good shipping and defense value, but it was still not wide enough compared to the Yangtze River. The Pearl River has always had a high peer value, but it is not long enough and has little defensive value.
3. Bonuses provided by river terrain: When armies are close to these rivers, there should be some supply benefits to simulate the convenience of river food transportation. When armies cross the river, it should require additional costs and time to simulate the process of organizing the crossing.
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Below is a picture of today's inland navigation dynamics Welcome to discuss

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Were there any actual river battles on the Rhine for example during the game's era?

I don't know about the Rhine, but the Yangtze and the lake Poyang experienced the largest naval battle of the 14th century, and was basically the battle to decide the future ruler of China:

 
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Were there any actual river battles on the Rhine for example during the game's era?
I dont think any important battles took place on the Rhine (maybe at the estuary during the 80 years war), but the Dutch raided the English fleet in a river (2nd Angli Dutch war?).

There were a bunch of battles on the Danube. Often this could decide a siege as the victor could blockade or resupply the fortress.
 
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I don't know about the Rhine, but the Yangtze and the lake Poyang experienced the largest naval battle of the 14th century, and was basically the battle to decide the future ruler of China:


Huh. I see. I'm not sure how reliable those numbers figures are (how without railroads are you gonna feed 650k people in one place?) but this is a good reason why rivers should be fight-able in the game.

Then again, troop numbers are pretty much way smaller in EUIV at the game start than in corresponding timeframe in reality.
 
Rivers are more of a transportation channel and a natural barrier. Many colonial settlements and cities were built based on these two factors.
But even as a transportation system they should impact military matters. For example the Ottomans supplying large armies using the Danube.

As a transportation system they should also help in exploration. For example this link is a map of Africa from 1813, and you can see how the parts of rivers you can reach from the sea have a lot more details than the parts where you couldn't reach inland from the sea.
 
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We don't have real input on the "barrier" part, but their use as transportation channel has been very minimal everywhere it was shown, including last week's China trade market map
1753689127526.png

All you have to do is build a fort at the ferry and make sure that no enemy ships can cross.The British conquests in India and Burma also relied heavily on the convenience of rivers to directly attack enemy capitals and major cities.
https://en.wikipedia.org/wiki/First_Anglo-Burmese_War
 
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Correct me if I am wrong, but I dont think there were any meaningful battles in any rivers for almost the entirety of the game period. You have some outliners (as they are pointed out) here and there, but that is about it. I feel like the player/the AI will just do stupid sh*t if they are accessible. Imagen the entire british navy parking in Belgrade. I trust the AI to do it and I bet my left testicle the player would most definetly do it in multiplayer.

I would much rather prefer rivers to be physical barriers to army (land forces) movement.
 
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At least in I:R, the navigable rivers do not bring any negative experience, but increase the fun of the game. In I:R, I am happy to use the fleet to carry the army along the Nile River deep into the heart of Egypt and destroy this fertile land, as long as the Egyptian fleet cannot defeat you. In real history, why would an army that can rely on water transportation choose to use feet?
Correct me if I am wrong, but I dont think there were any meaningful battles in any rivers for almost the entirety of the game period. You have some outliners (as they are pointed out) here and there, but that is about it. I feel like the player/the AI will just do stupid sh*t if they are accessible. Imagen the entire british navy parking in Belgrade. I trust the AI to do it and I bet my left testicle the player would most definetly do it in multiplayer.

I would much rather prefer rivers to be physical barriers to army (land forces) movement.
 
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I strongly agree that large rivers should be navigable. And while at it, I also hope they copy how it is in Imperator, where the river has predetermined crossing points that can be fortified. It made the game much more interesting for me.
 
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The Guayaquil, because it was apparently unacceptable to not have a shipyard in (upriver) Seville

This despite it being far from the most navigable access in Western Europe (not to mention a receding one in the game's period) or even the only navigable river in Iberia (poor Douro always gets the shaft)

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View attachment 1339434
All you have to do is build a fort at the ferry and make sure that no enemy ships can cross.The British conquests in India and Burma also relied heavily on the convenience of rivers to directly attack enemy capitals and major cities.
https://en.wikipedia.org/wiki/First_Anglo-Burmese_War
Your picture doesn't load, but I have no idea what the text has to do with the quoted post?

View attachment 1339451
This despite it being far from the most navigable access in Western Europe (not to mention a receding one in the game's period) or even the only navigable river in Iberia (poor Douro always gets the shaft)
That's indeed implied, that the Guayaquil is a stupid exception.
 
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