you can try age of pirates:city of abandoned ships
there is also a guy modding the game to make it more historicaly accurate with periods from early 1550-1600, the middle 1650-1700 (which he will release very soon ) and late 1750-1800
you can check his work here
http://www.piratesahoy.net/threads/n...d.19695/page-6
this is his youtube channel
http://www.youtube.com/user/modernknightone