Another map; 636837 has Bluegaria isolated once again, but not on an island. They are on a small landmass accessible only through one 1-hex wide route. Also, the watermasses in contact with Bluegaria's land do not have any ports, making Bluegaria's capital easily defendable.
The tutorial was WRONG. I beat this game on the first try. First i cured zombieisim. I kept playing. Then I drafted a constutution. Kept playing. Closed portal. Kept playing. Reclaimed last block. Ended game because i had done everything I could. YAY!