This tutorial explains how to create an interactive, detailled world atlas of your fantasy game world, as you can see in action at https://lemuria.org/dragoneye/atlas/.
It uses Azgaar's Fantasy World Generator - https://azgaar.github.io/Fantasy-Map-Generator/
and QGIS - https://qgis.org/
This is part one, more parts with the additional processing steps are on my channel. To see future videos early or support me on Patreon - https://www.patreon.com/notveryprofessional
UPDATE:
Apparently they've changed the specifications since this was made, so you might have to use https://mapstertech.github.io/mapster-right-hand-rule-fixer to get the output right.
Part two can be found here:
https://www.youtube.com/watch?v=C8mZKV9vVp4
Also, part 5 is finally out: https://youtu.be/5fKMqzuMuQg