X Marks the Spot in Marauder's Sea: four arms, a central lagoon, and rivers that dump at beach deltas. Folklore and strategy.
Legend says the lagoon was not born — it was dug. Four pirate houses cut channels toward the corners of the sea so every chart would show an X over the same water. Treasure stories still start in the middle islet cluster. Whether anything sits on the bottom, the rivers are real, and they still dump out at the beach deltas.
The center is a chokepoint. Use the four rivers as inland roads for boats, then hold the outer deltas so enemies cannot climb the arms. Bay islets between the arms are staging grounds for a flanking navy.
See also: The Hexacephalic Archipelago · Port · play Marauder's Sea free