This app was mentioned in 1 comment, with an average of 2.00 upvotes
There is an Android app in all Korean
https://play.google.com/store/apps/details?id=com.pkapps.stronghold_bd&hl=en
What it does do that is very helpful is show how the nodes connect. So many times i will be on the BDOTome map looking for a certain node. Then I go back and forth trying to figure out the best way to connect them (Looking at you Pine node).
Anyway, I know what I am about to say is unethical... but downloading the APK and tearing it down might be helpful for your project.