How To Get Biome Keys

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This ways the page will walk y'all through a specific chore, strategy, or enemy/boss fight.

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Issues:
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• Merge some sections. The specific methods of farming might exist amend on subsections than having their ain sections (bosses, biome-specific farms...)

Biome Keys are used to open Biome Chests in the Dungeon, which provide access to some powerful mail service-Plantera weapons, such as the Vampire Knives and Rainbow Gun. Merely they drop at the very depression rate of 0.04*1/2500 (0.04%), and are only dropped when the role player is in the fundamental'due south corresponding biome. Thus, information technology is appropriate to fix up an efficient subcontract to obtain them.

In Former-gen panel and 3DS versions, Biome Key Molds drop in place of Biome Keys, which requires additional material from Plantera and Mechanical Bosses in lodge to be crafted into a Biome Key.

Events

Events are one of the all-time ways to farm Biome Keys and their Molds. An extremely large amount of Enemies spawn during events, and many of them volition have a chance of dropping a Biome Central or Mold, supposing that yous are in the advisable biome in which one can drop.

Important: When you see a Biome Key or Biome Central Mold has dropped, be certain to pick information technology up right away. Only a certain number of dropped Items can be present at the same time, meaning the Biome Cardinal or Biome Fundamental Mold will despawn if plenty Items are dropped after it.

Some events the thespian may want to consider using to farm:

Goblin Regular army: The enemies that spawn shouldn't be an upshot for the player to deal with. Even so, if you are playing on Desktop, Console, Mobile, and Legacy tModLoader, you lot need to take care of the Shadowflame Apparations that the Goblin Summoner may summon.
Frost Legion: There are few enemies in this event capable of attacking through walls, but be wary that Snow Ballas may nullify an arena if they aren't dealt with.
Pirate Invasion: it's easy to obtain the Pirate Map , and most pirates are limited to attacks that can't penetrate blocks.
Solar Eclipse, Claret Moon: Non only do many enemies spawn during these events, but they final for the entire day/night if they either begin naturally or if the histrion uses a Solar Tablet or Encarmine Tear as early on in the day/dark as possible. These are likewise more reliable than other events every bit potential hundreds of enemies can be killed in one upshot, increasing the chances of dropping a Biome Key.
Notation: The Onetime One's Army effect doesn't yield Biome Keys or Biome Key Molds.

Bosses

Some Bosses can be used for farming:

King Slime: It can spawn regular Blue Slimes, which can drop any biome-specific drib (minus Biome Souls), which includes Keys.
Eater of Worlds: Its segments can drop any biome-specific drops, which includes Keys.

AFK Subcontract

The time it may take for Keys to driblet makes AFK farms an selection some players may consider. There are a few items that can kill monsters without player interaction: minions, Accessories, Armor sets, Lava, and Traps. Without player supervision, however, the grapheme should exist walled upwards as protection. The "waiting room" should be off-screen to a higher place the ground to avoid enemies that can laissez passer through blocks, and protected by traps to prevent flying enemies from piling up, and decreasing the spawn rate. The event should also not feature flying enemies that can pass/attack through walls, such as Elf Copters.

Keep in mind that even while AFK farming, the role player is still required to gather loot then to prevent items from despawning.

A actor using Ravens to subcontract.
A character sitting inside a "waiting room" while traps are killing monsters.
A character using an ocean Key farm with a lava trap.

Loonshit tips

A piece of country transformed into the Hallow for mold farming. The surrounding shaft prevents the Hallow from spreading to the adjacent country.

If you want to artificially build a biome to farm Cardinal Molds in, there are two means to practise so:

Gradually stacking i or more block types of the relevant biome until the amount of blocks calls it forth. The compactness of the stacked blocks allows a relatively small-scale area to create a biome. For farther info, see Guide:Artificial biomes.
In versions : By using 200 blocks of Crimson Ice or Purple Water ice and eighty blocks of Lihzahrd Brick it will be possible to have 3 biomes overlap and all three of the 4 biome keys to drop. Hallow is unfortunately sectional with Crimson/Corruption. You tin can use a Clentaminator to convert ALL the scarlet/purple ice to Pink Ice to get the hallow cardinal/mold.
In versions ane.4.0.ane and on : The amount of necessary blocks is now much college. You will need at least 1500 ice blocks, of which 300 blocks are Red Ice or Purple Ice and 140 blocks of Lihzahrd Brick and then it will be possible to take iii biomes overlap and all 3 of the five biome keys to drop. Hallow is yet mutually exclusive with Crimson/Corruption. You can utilise a Clentaminator to convert ALL the red/royal water ice to Pink Water ice to get the hallow key/mold.
The Clentaminator is an excellent tool for irresolute biomes. It's too possible to apply Grass Seeds if the player doesn't mind waiting.
- If y'all beginning with a Mud Block-based biome, exist sure to farm the Jungle Biome Key first. When you transform it into the Corruption or Crimson, the top block layer volition be transformed into Dirt Blocks, on which Jungle cannot exist re-applied.
Unless you don't mind the Abuse, Crimson, or Hallow spreading, you may desire to "quarantine" the area by earthworks half-dozen-block broad shafts and tunnels to dissever the Fundamental farms from the adjacent land.
A Water Candle volition increase the number of enemies. This tin also be combined with the Battle Potion.
Boosted info on creating biomes/arenas can be found on:
- Guide:Base defense and precautions
- Guide:Maintaining world purity
The dungeon has a high spawn charge per unit, so setting up a farm there tin can help speed up the farming process.
Actuators tin aid with getting in and out of your waiting room while blocking enemies from attacking you.

Fundamental-specific farms

Corruption Key / Mold

The Eater of Worlds's trunk segments all count towards the drop rate of 1/2500. Since the Eater of Worlds consists of 50 segments there is a college drop rate for a primal mold from the Eater of Worlds. With Hardmode equipment, spam summoning the Eater of Worlds is quick and reliable.
While farming, remember to return to the Dryad if a Blood Moon occurs, as she will sell Vile Powder, which is i of two ingredients in making Worm Nutrient. The other being Rotten Chunks. This prevents the player from having to farm Vile Mushrooms, but they function equally an alternative if waiting isn't an pick.
Another lesser method is to kill worm-type creatures like the Globe Feeder with explosives. This volition impale multiple segments at once, each dropping their own loot.

Blood-red Fundamental / Mold

First defeat Plantera to have the Witch Doctor sell Tiki armor. Purchase it and wait with a couple summons in the Crimson. Make sure to accept either a Battle Potion or a Water Candle to increment the spawn rate. This may take an hour or so.

Hallowed Central / Mold

It might not exist the fastest strategy, just standing on a hill in The Hallow and using the Spectre Staff to impale any enemies that come into your field of view is somewhat effective.
A more AFK equivalent is to stand on the hill and use a Pygmy Staff along with some sentries to automatically kill the enemies. Turtle Armor tin can assistance do impairment even if they go to the player, and Campfires and Heart Lanterns aid boost regeneration.

Surviving in Environments