@{H.B.M.N} FrEsH Dumbledore The mod is intended to work for both regular Forts (built by workers) and Citadels (from Great Generals). If it's only working on Citadels, it could be a database issue.

Could you please try running the game with administrator privileges? That can sometimes fix it. Thanks for the report!

@mashplum To answer your question, I unfortunately don't have a Mac environment, so I can't personally test if it works. I apologize for that. However, my mod is based on the core mechanics of the original "Fortress Borders" mod. So, if the original mod worked correctly on your Mac, it's highly likely that my enhanced version will be compatible as well.

Also, this is a standalone mod. You do not need to have the original "Fortress Borders" mod installed. Please use only this mod.

I'm sorry I couldn't give you a more direct and helpful answer.

@mashplum I think it only works with the great-general fortress

Is this supposed to work on the Mac version? I built a fort and nothing happened. Should I have this mod and the original Fortress mod installed?

@Ctrekoz You're right — being able to keep tiles close to a city can indeed make borders expand very quickly, and that could be a balance concern as you mentioned. Separating fortress-claimed tiles from culturally acquired tiles would put a heavy load on memory, so I had to make it so that tiles within 5 tiles of a city are always retained (this was actually the original author’s intention!). Instead of removing this effect, I’ll try adding some logic so the AI can also make better use of fortresses. Thanks a lot for the feedback!

Thanks! I'm still not sure about using this mod due to balance concerns, like too easily getting territory, and idk how AI uses it as well.

@Ctrekoz Hello! Thanks for the question. Here's a quick explanation of "Dynamic Border Retention":

In short: It's a "safety zone" around your cities that protects both the fort tile and its surrounding territory from disappearing. This zone gets bigger as you research new techs.

The Problem it Solves: Normally, if you leave a fort empty for 5 turns, you lose its tile and surrounding territory.

How it Works: This feature stops that from happening. Territory gained from a fort is protected as long as it's inside the safety zone. The zone starts at 5 tiles, grows to 6 with Machinery, and finally to 7 with Railroad.

Example: Territory gained from a fort 6 tiles away from a city is only safe from territory loss after you've researched Machinery. Before that, the safety zone was only 5 tiles, so its territory wouldn't have been protected.

Hope this helps!

I do not understand Dynamic Border Retention.