How trade routes connect in FFH2?

[Bad Player]

I took screenshots of what I thought was a bug - 2 cities connected by a river with no other civs/cities in between them, just a little fog of war. This did not create a trade route. I think this is different compared to regular civ4 (I've been playing a bit of Ryhes and Fall lately).

What needs to happen for a trade route in FFH2 compared to regular civ4?

 

[esvath]

IIRC, trade routes follow these rules:

automatically established (players can't control it)
automatically between domestic cities when those cities are connected by roads or river.
for land-based foreign trade, you have to have Trade tech and open border with another civ. Yours and your neighbour's border must be connected, preferably with road.
for coast-based foreign trade, you have to have Sailing tech (or is it Optic?)
for ocean-based foreign trade (with civs on different continents), you have to have Optic tech (or was it Astronomy?)
you can look at the pedia to know for sure which tech allow you to get from coast and ocean. it's in naval tech line.

 

[Turinturambar]

I think since BTS you need either sailing or fishing( can't remember which) to get rivertraderoutes through fog of war.

 

[onedreamer]

you need Sailing to trade via rivers and coast, roads via land, astronomy for ocean. This applies to: BtS, RFC, FFH2 all the same. Foreign trade routes are the exact same but you also need open borders, unless the resolution that in FFH2 comes with Overcouncil (trade with all foreign cities). In that case you only need the route and no open border (very powerful resolution). Also trade routes are blocked if you are at war with a civ that is in the way of these routes, but they are only blocked for the player at war (unless both players are at war with that civ).

 

[[to_xp]Gekko]

umh, I don't think you actually need sailing to trade via rivers. I'm pretty sure I've seen my cities connected by a river without having researched sailing many many times. this has always confused me btw so thanx for opening this thread, a clarification will be great.

 

[Turinturambar]

If the river runs through tiles not in your cultural borders you need sailing to connect cities. If it is within your borders you don't.

 

[Kjara]

Has anyone tested if the river runes along the edge of your borders? Since the rivers really lie between tiles, not within them, I wonder if it checks if either of the boundary tiles are inside your borders or if both are?

 

[Keeper_GFA]

I think that it checks tiles, not actual rivers. I remember once having a river from my capitol and a separate river from my second city on opposite sides of one tile, and it still counted my cities as connected. Even though neither river went to both cities, and there were no roads yet.

 

[onedreamer]

Has anyone tested if the river runes along the edge of your borders? Since the rivers really lie between tiles, not within them, I wonder if it checks if either of the boundary tiles are inside your borders or if both are?

not relevant, since to connect a city, it must obviously be inside someone's borders.

 

[Demus]

Has anyone tested if the river runes along the edge of your borders? Since the rivers really lie between tiles, not within them, I wonder if it checks if either of the boundary tiles are inside your borders or if both are?

As far as i know it does (both tiles are considered "river connected", else you'd only be able to build breweries if your city was on the "good" side of the river). And it is important, if you're connecting two cities a few tiles apart .