Hardmode



Hardmode is a harder version of the initial world. A world permanently converts to Hardmode after the player defeats the Wall of Flesh in that world.

Hardmode contains new Biomes called the Underground Corruption and The Hallow (along with the Underground Hallow). Corruption and Hallow both spread continuously in Hardmode, and can eventually overtake an entire Map.

Demon Altars become breakable with the Pwnhammer (which drops from the Wall of Flesh), and upon doing so, new Ores become available. Along with all regular enemies, Hardmode contains new enemies that are more difficult, some of which are "upgraded" versions of regular-mode enemies.

Hardmode also makes new Armors, Weapons, Accessories, and other items available that will help, and are sometimes essential, in dealing with new Hardmode challenges. Some of these become available for purchase from NPCs, as drops from enemies, or are craftable using new Hardmode materials and crafting stations.

Biomes
Defeating the Wall of Flesh triggers the announcement, "The ancient spirits of light and dark have been released." Immediately, two diagonal stripes of the new biomes, The Hallow/Underground Hallow and Corruption/Underground Corruption, are generated, replacing large sections of the World in a "V" pattern that extends from the center of The Underworld all the way to the surface.

The Underground Corruption looks similar to the surface Corruption, though it contains several new Corruption-themed enemies, like the Corruptor and Clinger.

The Hallow represents a brand-new theme, distinguished by its pastel-colored fairytale imagery. Rainbows make up the surface's background image, its trees are puffy and multicolored, and enemies look similarly whimsical, such as the Unicorn and Pixie. Do not be fooled, though: Hallow enemies are quick, resilient, and deadly, and their spawn rates are high.

The Corruption spreads much more easily in Hardmode, with the Hallow spreading in a similar fashion.


 * Corruption and Hallow will spread to stone, sand and dirt that are up to three tiles away.
 * Almost all other blocks are immune to Corruption and Hallow, including Wood, Clay Blocks, Ash Blocks, Silt Blocks, Obsidian, Ores, Gems, and all bricks (except Pearlstone, which will spread Hallow).
 * Mud will slow the spread of Corruption, but not stop it, since Corruption can convert mud blocks into dirt over time. Mud blocks containing mushroom grass are not affected.
 * Sunflowers will no longer prevent the spread of corruption. Instead, they will pop out of the ground as corruption spreads past.
 * The Corruptor spreads Corruption by firing projectiles that seed Corruption wherever they impact.
 * Hallow and Corruption can not convert each other.

These new properties mean that Hallow and Corruption will now continuously spread, and can reach your original spawn point within a few in-game days. It is advisable to take steps to protect your Town and any other areas you want to invest time in keeping around, which can be done by mining away a four-tile-wide frame surrounding the area, then sealing it in with Wood or Clay.

Ores
The Wall of Flesh always drops the Pwnhammer upon its defeat, which can be used to destroy Demon Altars (note that bringing the Pwnhammer to a regular-mode world will not allow you to destroy Demon Altars there). The first three Demon Altars destroyed will trigger the creation of three new Ores, in the following order:


 * The first destroyed Demon Altar will trigger the creation of Cobalt Ore.
 * The second destroyed Demon Altar will trigger the creation of Mythril Ore.
 * The third destroyed Demon Altar will trigger the creation of Adamantite Ore.

The new ores are created by replacing existing World blocks.

Subsequent Demon Altars destroyed will begin the cycle again, though the fourth-sixth altars will drop half as many ore as the first ones, the seventh-ninth will drop only one third of the ore of the first ones, and so forth. The formula is 1/ROUND_DOWN([number of destroyed altars]/3).

Each time a demon altar is destroyed, there is also a chance that a single random tile of rock in the world will be converted into ebonstone or pearlstone, which will likely grow to become a new underground Hallow or Corruption if given enough time.

No matter how many Altars are destroyed, Ore rarity remains set with Cobalt being the most common, followed by Mythril, then Adamantite as the most rare.

Mining and crafting

 * Mining Cobalt Ore requires at least the Molten Pickaxe.
 * Mining Mythril Ore requires at least the Cobalt Drill. Crafting many higher-tier Hardmode items will require a Mythril Anvil, which is crafted from 10 Mythril Bars.
 * Mining Adamantite Ore requires at least the Mythril Drill. Crafting Adamantite Bars will require an Adamantite Forge, which is crafted from a Hellforge and 30 raw Adamantite Ores.

Bosses
New Hardmode bosses are "upgraded" versions of the regular-mode bosses, are much more difficult, and are summoned via new craftable items:


 * The Twins are the Hardmode version of the Eye of Cthulhu, and are summoned by the Mechanical Eye.
 * The Destroyer is the Hardmode version of Eater of Worlds, and is summoned by the Mechanical Worm.
 * Skeletron Prime is the Hardmode version of Skeletron, and is summoned by the Mechanical Skull.

All regular-mode bosses can still be summoned in Hardmode.

NPCs
Two new NPCs become available in Hardmode:


 * The Wizard can be found in nearly any open area underground, initially bound, and speaking to him frees him (similar to the Mechanic). He will then respawn as long as a vacant House is available. The Wizard sells magic-related items.
 * Santa Claus appears between December 15th and 31st (based on your computer's time setting), after defeat of the Frost Legion, so long as a vacant House is available. He sells the Santa costume and the Red/Green/Blue lights.

Events
There is currently only one new event in Hardmode: The Frost Legion, which is triggered by the Snow Globe. It can be considered the Hardmode version of the Goblin Army, though it requires summoning by the player and never invades on its own. Goblin Armies do still invade at the regular rate in Hardmode worlds.


 * The Snow Globe can be used to summon the Frost Legion in non-Hardmode worlds, but the Snow Globe itself can only be acquired in a Hardmode world.

Items
Several new Tools, Weapons, Accessories, Armors, and crafting materials become available in Hardmode, as enemy drops, sold from NPCs, or via crafting. Drills, Chainsaws, and Repeaters are the Hardmode versions of Pickaxes, Axes, and Bows, respectively.

Each of the three new Ores has its own complete item set, including Armor, Drill, Chainsaw, Sword, Spear, and Repeater. In addition, the highest-tier Hallowed Armor and associated Hallowed tools and weapons become available (the Hamdrax, Excalibur, Gungnir, and Hallowed Repeater), though crafting them requires first creating all of the other new item sets and defeating all three new Hardmode Bosses (see above).

Each new Armor set has three different options for the Helmet slot, which each determine the Armor's set bonus. When wearing a full set of each Armor type, the following set bonus types are applied:


 * The Headgear provides a boost to Magic Weapons.
 * The Helmet provides a boost to Melee Weapons.
 * The Mask provides a boost to Ranged Weapons.

Souls are a common requirement for crafting many Hardmode items:


 * Soul of Light can be dropped by any Underground Hallow or Underworld enemies.
 * Soul of Night can be dropped by any Underground Corruption or Underworld enemies.
 * Soul of Flight is dropped by Wyverns.
 * Soul of Sight is dropped by The Twins.
 * Soul of Might is dropped by The Destroyer.
 * Soul of Fright is dropped by Skeletron Prime.

Several other new crafting materials are also dropped from enemies, including Pixie Dust from Pixies and Unicorn Horns from Unicorns. Crystal Shards are found growing in the Underground Hallow, and are another common Hardmode crafting material.

''Note: See The Hallow, Underground Hallow, Corruption, and Underground Corruption for complete item drop lists. See also Hardmode weapons.''

Tips

 * If you've built a Corruption farm near your Town to farm Vile Mushrooms, or a corrupted Arena to farm the Eater of Worlds, you will want to either demolish them completely or seal them completely with Wood before defeating the Wall of Flesh. Corruption spreads very quickly and easily in Hardmode, including turning Stone into Ebonstone, but can not spread past Wood (nor several other block types, but Wood is arguably the easiest to acquire).
 * If you enter Hardmode while a Corruption farm/arena is still standing unsealed near your town, quickly purchase several full stacks of Purification Powder from the Dryad and drench the Corruption with it. Alternatively, you can choose to simply limit the spread of Corruption by digging a four-tile-wide gap around the affected area and sealing it in with Wood. You will need to move quickly, though. Try to keep as much of the Corruption on-screen as possible to prevent Corruptors from spawning, which will spread more Corruption via fired projectiles.
 * When beginning Hardmode, a player can easily become overwhelmed by the difficult new enemies, which have Health and Damage many times greater than regular-mode enemies. It is advisable to start by identifying your most damaging weapons and investing money in Reforging them to acquire high damage bonuses, as well as reforging your Accessories to add high defense bonuses. Low-tier Hardmode weapons begin at around 35 damage, so viable regular-mode weapons of use will be the Molten Fury and Night's Edge as melee options, the Sunfury and Flamarang as semi-ranged, and the Flower of Fire and Demon Scythe as magical. Reforging these and making use of other damage boosts from Accessories or Armor bonuses can easily push these weapons into damage ranges that will make Hardmode fights relatively balanced.
 * The Hallow and/or The Corruption can eventually overtake all the Sand in a map. Sand is essential in crafting Glass and then Bottles for Potions, so collect a large amount of it early on. Pearlsand/Ebonsand can not be used to craft Glass. However, even when the Hallow/Corruption has completely taken over you world, Purification/Vile Powder can still be used to retake some amounts of sand.
 * The Eater of Worlds and Eye of Cthulhu are commonly used by players as a good source of money, and this holds true in Hardmode. However, summoning them in Hardmode can be more difficult: eg. you've probably destroyed any close Demon Altars (needed to craft the Worm Food and Suspicious Looking Eye), you may have demolished your nearby Corruption farm or Arena, and trips to the naturally-occurring Corruption are now more hazardous (Eater of Worlds must be summoned and fought within Corruption). It is much easier to simply create a new non-Hardmode world to farm these bosses, then use the funds collected from them in your Hardmode world.