Pirate Map

Not to be confused with Treasure Map.

The Pirate Map is a Hardmode item used to summon a Pirate Invasion. It has a 1% (1/100) chance of dropping from any enemy within or close to an Ocean during Hardmode.

Tips

 * With Neptune's Shell and permanent Minions, along with any minion boost gear available (such as Spider armor), stand on the Ocean floor while the minions kill incoming enemies. Use Battle Potion and place a nearby Water Candle to speed up the process.
 * In Crimson worlds, place a contained area of Crimson to one side of the Ocean so Blood Jellies spawn, which will be more frequent than ordinary Ocean spawns. Take advantage of Blood Moons to further increase spawn rates.
 * If the Jungle is close enough to the Ocean that you can be inside the Jungle Biome, it will spawn Arapaimas frequently in the Ocean. Alternatively, you can create artificial Jungle if you have Jungle grass seeds.
 * In Corrupt worlds, it is helpful to corrupt your Ocean using Vile Powder or a Clentaminator and grind the Eater of Worlds for maps. Since there are about 50 parts per boss, each one will probably drop at least one map.