Really liking the game so far and looking forward to where youe are taking it!
Some minor requests regarding map generation: Would it be possible to add an option to adjust the amount of water on maps? Secondly, it doesn't seem to be possible to add portal connections when creating node maps. That would be neat too. It would also be nice if nodes could be defined as being completely walled off, mainly from the sea to say, only allow access via a portal.
I get that you have a lot on the table and that the map generator takes low priority, but just some things that came to mind that would be nice.