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.
Below is a picture of today's inland navigation dynamics Welcome to discuss
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.

Below is a picture of today's inland navigation dynamics Welcome to discuss




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