Terraria contains two holiday themed events, one of which being the Pumpkin Moon. The Pumpkin Moon is an event that can be accessed after killing Plantera and contains difficult enemies and valuable drops which help in the late-game. It also spawns a boss and a miniboss so you’ll have to go through it if you want to get all the boss trophies.
Before you can fight the enemies of the Pumpkin Moon you need to start it. The event is triggered by using the item the Pumpkin Moon Medallion. This is an item which can be crafted after the Hardmode Jungle boss Plantera is defeated.
The Pumpkin Moon Medallion requires three items; 30 Pumpkins, 5 Ectoplasm, and 10 Hallowed Bars combined at a Mythril or Oricalcum Anvil.
Pumpkins can be obtained by breaking Pumpkin background objects. These will spawn naturally in worlds during the month of October and can be created manually with Pumpkin Seeds bought from the Dryad NPC.
Ectoplasm is an item which drops from Dungeon Spirits. Enemies which spawn when enemies in the Dungeon are killed only after Plantera has been defeated. The Dungeon Spirits themselves are easy to kill but the Dungeon enemies they spawn from are far more difficult to take down.
Hallowed Bars are a material dropped by the Mechanical Bosses. Defeating the Destroyer, the Twins, or Skeletron Prime will reward you with 15-30 bars.
Once you have the Medallion, wait until nighttime and use it to begin the event.
The Pumpkin Moon event contains a large number of unique enemies and a unique progression system. Similar to the Old One’s Army’s wave system, the Pumpkin Moon has 15 Waves to complete. You complete waves by killing a certain number of enemies which increase your score. Reaching a high enough score progresses you to the next wave. You’ll have to be quick though because once the sun rises the event ends and all enemies leave your world. You’ll want to do this quickly as reaching wave 15 before morning will cause the next day and night to behave as if the game were being played during October, with Halloween enemies spawning and Goodie Bags dropping from all enemies.
The first five enemies are effectively fodder and are
When killed they add 150 points to your score.
With all its unique enemies, the Pumpkin Moon also contains unique and powerful drops.
These items will only drop from the Mourning Wood mini-boss.
These items will only drop from the Pumpking boss.
Due to the high spawn rate, the Pumpkin Moon is useful for farming money and can even be used to increase spawns in places where Pumpkin Moon enemies can’t spawn, like the Ocean, since it increases the spawn rate of everything. It's also recommended to create an arena with a pit filled with traps. These traps can be collected from the Temple in the Jungle biome and will deal with the smaller fodder enemies while you can focus on the Mourning Wood and Pumpking.
The Pumpkin Moon is a post-Plantera event summoned by using a Pumpkin Moon Medallion at night. During the event a number of unique enemies will spawn which will drop valuable items for all classes. Though you have to be quick as once the sun rises the event is over and enemies stop spawning.
Yes! These two events are so incredibly similar that using the same, trap filled arenas is recommended. It cuts down on time and makes fighting both of them in quick succession simple.
Good weapons to use are ones that are effective at crowd control. Since lots of high health enemies will be spawning and in the later stages you’ll be dealing with multiple mini-bosses and bosses at once, it's important to be able to hit them all. Flaron and The Scourge of the Corruptor are effective melee crowd control items that do decently on the bosses. Tsunami or Daedalus Stormbow with Holy Arrows are also effective, though the Stormbow less so. The Razorblade Typhoon is definitely one of the best items to use due to its piercing and homing abilities.
It somewhat depends on your class but by far the best item to get is the Witch’s Broom mount. It grants immense mobility and can help in fighting Moon Lord. It's also useful for travelling the world. Unfortunately it only drops on Expert or Master mode so it will take more effort to get than the other items.