I have tried to devise a game where the pirates act like pirates, and the non-pirates act their part too. This game has a strategic map-play element which links to the tactical Pirates game. The pirates have to attack merchant ships or settlements to get any gold, and the "government" ships are there to protect the merchant ships.
Unfortunately I have had no chance to test the game out, as my only opponent is my 8-year-old son, who's not interested. Anyone who does try it out, I wouldn't mind some feedback.