Rocks of Ruin is een uitbreiding voor het spel Explorers of the North Sea.
In the game Explorers of the North Sea: Rocks of Ruin, new opportunities await daring captains. Recent storms have left longships torn apart, with their precious cargo scattered across the rocky shores. Meanwhile, rumors of great fortresses in nearby regions are beginning to spread. Will you be the first to salvage the wrecks, or will you throw caution to the wind and charge the enemy fortresses for fame and glory? In addition to including components for an extra player, Rocks of Ruin also includes three new building types, 24 tiles, five large player boards, two new captain cards, shipwrecks and fortresses.