Proximity
Turns autonomy into an attempt at replicating EU5’s control and proximity systems.
Proximity flows over land from your capital through adjacent owned provinces (or if in the HRE, HRE provinces). It is affected by terrain (for example, mountains cost 75% more proximity to go through), as well as admin tech, development, and expanded infrastructure level.
Additionally, it can flow over the ocean (through coastal seas only). It costs significantly more to go from a land tile to a sea tile or vice versa than to go from a sea tile to a sea tile. The cost to go in/out of a land province from the sea is reduced by having a dock or drydock, having a high level centre of trade, as well as development, admin tech, and expanded infrastructure. The cost to go from a sea to a sea is half as much base, and is reduced by diplo tech.
Additionally, forts act like weak proximity sources, like Bailiffs in EU5… but only if they are funded.
The vanilla autonomy system has been reworked into something very similar to control. It has an equilibrium, where monthly reductions to autonomy are very powerful (each -0.01 monthly autonomy will move the equilibrium down by 1% – effectively 1% more control). At maximum proximity, a province gets -0.75 monthly autonomy, so maximum proximity will have 25% autonomy without any other modifiers – so you get 75% of the value from the province.
Several other things have been changed to affect control, too, including non-accepted cultures, untolerated religions, and devastation. Additionally, provinces of the primary culture get a small bonus as well.
It is highly recommended to use a mod that adds navigable rivers, as it will allow proximity to go along rivers more quickly. For some reason, it is not possible to check if a province has a river in a mod, so it is impossible to integrate without such a mod.
Should be compatible with most mods, if they don’t add new terrain types. Anbennar is also specifically compatible, and the terrains from it will affect proximity. I cannot guarantee it does not mess up a mission tree or make a nation unplayable, however.
Now has extra compatibility with All Roads Lead To Rome: https://steamcommunity.com/sharedfiles/filedetails/?id=1917766084
Land proximity will be halved, but roads will reduce it (early roads will reduce it to the same as without the mod enabled).
Thumbnail is the autonomy mapmode with this mod on Ming at gamestart.
Revisions:
Old revisions of this mod are available below. Click the link to download.
