Tried the rc1 appimage, it is working fine, but there is an issue with Italian locale.
If I select Italian, the game still run in English. I also tried espanol and it is properly in spanish. So, the issue is just for Italian.
For a navy, bridges would be like walls for rams: they cannot be crossed but destroyed. To avoid their excessive building (wonder what the animnation would look like) bridges could have a maximum length or could be a pre-disposition connecting two defined points on a map.
But as I wrote, it would be a slightly different game then.