The Perforators

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The Perforators
The Perforators.png
Statistics
TypeBoss
EnvironmentThe Crimson
Max Life12060 / 22440 Expert Mode / 27360 Revengeance Mode / 26685 Master Mode / 32508 Revengeance Mode Master Mode / 7776 Death Mode Master Mode (Total)
KB Resist100%
Immune toConfusedPearl Aura
Cold Bestiary Cold.pngVulnerable
Water Bestiary Water.png-
Sickness Bestiary Sickness.pngVulnerable
Electricity Bestiary Electricity.png-
Heat Bestiary Heat.pngVulnerable
Drops
Coins 15 Gold Coin.png

Perforator Trophy.png "...The divine turned inside out; their gore now glistens with its perverse treachery, for all to bear witness." Perforator Trophy.png

The Perforators are a group of Pre-Hardmode bosses, intended to be fought after the Brain of Cthulhu.

They are the Crimson counterpart to The Hive Mind.

Spawn

The Perforators are summoned by killing a Perforator Cyst in The Crimson.

After its defeat, the player can craft a Bloody Worm Food to summon it instantly, at any time.

Bosses

The Perforator Hive

The Perforator Hive
The Perforator Hive.png
Perforator Hive map.png
Map icon
Statistics
TypeBoss
EnvironmentThe Crimson
DamageThis attack will cause defense damage on hit. 63 Revengeance Mode / 72 Death Mode / 108 Master Mode (Contact)
36 / 56 Expert Mode / 68 Revengeance Mode / 80 Death Mode / 120 Master Mode (Blood Geyser, Ichor Shot, Ichor Glob)
Max Life6000 / 9600 Expert Mode / 11520 Revengeance Mode / 12240 Master Mode / 14688 Revengeance Mode Master Mode
Defense4
KB Resist100%
Inflicts debuffBurning BloodBurning Blood
100% chance

Debuff duration3 seconds (Contact)
2 seconds (Blood Geyser)
Debuff tooltipYour blood is on fire
Inflicts debuffIchor (debuff)Ichor
100% chance

Debuff duration3 seconds (Ichor Shot)
4 seconds (Ichor Blob)
Debuff tooltipReduced defense
Cold Bestiary Cold.pngVulnerable
Water Bestiary Water.png-
Sickness Bestiary Sickness.pngVulnerable
Electricity Bestiary Electricity.png-
Heat Bestiary Heat.pngVulnerable

Worms

The Small Perforator

The Perforator HeadSmall
The Perforator Head (Small).png
Statistics
TypeBossBurrowing Enemy
DamageThis attack will cause defense damage on hit. 36 / 60 Expert Mode / 72 Revengeance Mode / 84 Death Mode / 126 Master Mode
Max Life1200 / 2400 Expert Mode / 2880 Revengeance Mode / 2700 Master Mode / 3240 Revengeance Mode Master Mode
Defense0
KB Resist100%
Inflicts debuffBurning BloodBurning Blood
100% chance

Debuff duration3 seconds
Debuff tooltipYour blood is on fire
The Perforator BodySmall
The Perforator Body (Small).png
Statistics
TypeBossBurrowing Enemy
Damage20 / 36 Expert Mode / 42 Revengeance Mode / 48 Death Mode / 72 Master Mode
Max Life1200 / 2400 Expert Mode / 2880 Revengeance Mode / 2700 Master Mode / 3240 Revengeance Mode Master Mode
Defense4
KB Resist100%
Inflicts debuffBurning BloodBurning Blood
100% chance

Debuff duration1.5 seconds
Debuff tooltipYour blood is on fire
The Perforator TailSmall
The Perforator Tail (Small).png
Statistics
TypeBossBurrowing Enemy
Damage14 / 20 Expert Mode / 26 Revengeance Mode / 32 Death Mode / 48 Master Mode
Max Life1200 / 2400 Expert Mode / 2880 Revengeance Mode / 2700 Master Mode / 3240 Revengeance Mode Master Mode
Defense8
KB Resist100%
Inflicts debuffBurning BloodBurning Blood
100% chance

Debuff duration1 second
Debuff tooltipYour blood is on fire

The Medium Perforator

The Perforator HeadMedium
The Perforator Head (Medium).png
Statistics
TypeBossBurrowing Enemy
DamageThis attack will cause defense damage on hit. 42 / 70 Expert Mode / 84 Revengeance Mode / 98 Death Mode / 147 Master Mode
Max Life180 / 360 Expert Mode / 432 Revengeance Mode / 405 Master Mode / 486 Revengeance Mode Master Mode
Defense2
KB Resist100%
Inflicts debuffBurning BloodBurning Blood
100% chance

Debuff duration4 seconds
Debuff tooltipYour blood is on fire
The Perforator BodyMedium
The Perforator Body (Medium).png
Statistics
TypeBossBurrowing Enemy
Damage24 / 42 Expert Mode / 50 Revengeance Mode / 58 Death Mode / 87 Master Mode
Max Life180 / 360 Expert Mode / 432 Revengeance Mode / 405 Master Mode / 486 Revengeance Mode Master Mode
Defense6
KB Resist100%
Inflicts debuffBurning BloodBurning Blood
100% chance

Debuff duration2 seconds
Debuff tooltipYour blood is on fire
The Perforator TailMedium
The Perforator Tail (Medium).png
Statistics
TypeBossBurrowing Enemy
Damage18 / 28 Expert Mode / 34 Revengeance Mode / 40 Death Mode / 60 Master Mode
Max Life180 / 360 Expert Mode / 432 Revengeance Mode / 405 Master Mode / 486 Revengeance Mode Master Mode
Defense10
KB Resist100%
Inflicts debuffBurning BloodBurning Blood
100% chance

Debuff duration1 second
Debuff tooltipYour blood is on fire

The Large Perforator

The Perforator HeadLarge
The Perforator Head (Large).png
Statistics
TypeBossBurrowing Enemy
DamageThis attack will cause defense damage on hit. 54 / 90 Expert Mode / 108 Revengeance Mode / 126 Death Mode / 189 Master Mode
Max Life2700 / 5400 Expert Mode / 6480 Revengeance Mode / 6075 Master Mode / 7290 Revengeance Mode Master Mode
Defense4
KB Resist100%
Inflicts debuffBurning BloodBurning Blood
100% chance

Debuff duration5 seconds
Debuff tooltipYour blood is on fire
The Perforator BodyLarge
The Perforator Body (Large).png The Perforator Body 2 (Large).png
Statistics
TypeBossBurrowing Enemy
Damage28 / 48 Expert Mode / 56 Revengeance Mode / 64 Death Mode / 96 Master Mode
Max Life2700 / 5400 Expert Mode / 6480 Revengeance Mode / 6075 Master Mode / 7290 Revengeance Mode Master Mode
Defense8
KB Resist100%
Inflicts debuffBurning BloodBurning Blood
100% chance

Debuff duration3 seconds
Debuff tooltipYour blood is on fire
The Perforator TailLarge
The Perforator Tail (Large).png
Statistics
TypeBossBurrowing Enemy
Damage22 / 36 Expert Mode / 42 Revengeance Mode / 48 Death Mode / 72 Master Mode
Max Life2700 / 5400 Expert Mode / 6480 Revengeance Mode / 6075 Master Mode / 7290 Revengeance Mode Master Mode
Defense12
KB Resist100%
Inflicts debuffBurning BloodBurning Blood
100% chance

Debuff duration1.5 seconds
Debuff tooltipYour blood is on fire

Behavior

The Perforator Hive will hover above the player and shoot falling projectiles, accelerating towards the player to attempt to actively stay above them at all times. As it loses health, it will spawn Perforator worms with different sizes, stats, and appearances. All three worms can exist at the same time as each other, and the Perforator Hive gains 30% damage reduction for each worm alive, stacking up to 90% if all three worms are left alive.

The Perforators all behave like typical worms, burrowing through blocks and charging at the player. However, if their heads are too far away from the player (18.75 / 15 Expert Mode / 12.5 Revengeance Mode / 10 Death Mode tiles), they gain the ability to fly in order to return to the fight or reach an elevated platform more easily. Each worm has a trait that differentiates one from another, from increased speed to the ability to lunge itself above the player.

The Perforator Hive enrages outside the Crimson biome and on the Surface, increasing their maximum movement speed.

The Perforator Hive

  • Fires an arcing spread of 10 / 12 Expert Mode / 14 Revengeance Mode / 16 Death Mode Blood GeyserBlood Geysers or Ichor ShotIchor Shots every 1.25-15 seconds, which inflict the Burning Blood and Ichor debuffs respectively. The type of projectile chosen is random.
    • These projectiles arc slightly upward, which then spread out and fall down to cover a large area. They can only pass through tiles within the first two seconds of being fired.
    • The fire rate is lower for every worm alive. Each worm equally reduces the fire rate by the same factor.
  • When below 70% health, every 10 seconds it positions itself above the player. After 5 seconds of positioning, it drops a spread of 3 / 6 Expert Mode Ichor BlobIchor Blobs downwards, which Ichor Blob (ground)splatter on surfaces and become stationary hazards for up to 15 seconds.
    • The Perforator Hive cannot perform this attack if one of the worms is currently alive.
  • The Perforator Hive will not deal contact damage while any worm is alive or performing the ichor blob attack.

The Small Perforator

  • Spawns when the Perforator Hive is at 75% health.
  • This small worm is much faster than the other two.
  • This worm has 6 / 8 Expert Mode / 9 Revengeance Mode / 10 Death Mode segments in total.

The Medium Perforator

  • Spawns when the Perforator Hive is at 50% health.
  • Similar to the Eater of Worlds, each segment has an individual health pool, and it can split up into smaller worms when a body segment is killed.
  • This worm has 12 / 14 Expert Mode / 15 Revengeance Mode / 16 Death Mode segments in total.

The Large Perforator

  • Spawns when the Perforator Hive is at 25% health.
  • This worm has 16 / 22 Expert Mode / 25 Revengeance Mode / 28 Death Mode segments in total.

In Expert Mode

  • All Perforators can be enraged similarly to the hive, increasing their acceleration and speed. The enrage is linearly more effective the lower their health, up to doubled base movement.
  • All Perforators gain 2, 4, or 6 segments from smallest to largest and a size increase of 10%.
  • The Perforator Hive shoots 12 projectiles per volley instead of 10, and 6 Ichor Blobs instead of 3.

In Revengeance Mode

  • All Perforators gain 1, 2, or 3 segments from smallest to largest and a size increase of 5%.
  • The Perforator Hive shoots 14 projectiles per volley instead of 12.
  • The Perforator Hive attempts to ram the player.
    • If there is only one Perforator alive, it will not ram the player but instead gain slightly increased acceleration and maximum speed.
    • It there are multiple Perforators alive, it will accelerate faster but lower its maximum speed.

In Death Mode

  • All Perforators gain 1, 2, or 3 segments from smallest to largest and a size increase of 10%.
  • All Perforators' enrages are more effective.
  • The Perforator Hive shoots 16 projectiles per volley instead of 14.
  • The Perforator Hive accelerates faster but has a lower maximum speed.

On the For the worthy seed

  • Perforators are now summoned when The Perforator Hive reaches 85%, 60%, and 45% health.
  • The Perforator Hive shoots double the amount of projectiles.

On the Get fixed boi seed

  • All Perforators have a 400% health modifier.

During the Boss Rush

  • The Perforator Hive does not enrage outside of their biomes.
  • The Perforators and their hive gain significantly higher acceleration.

Aftermath

Resistances

  • All Perforator segments take reduced damage from most non-minion piercing projectiles. Each hit decreases the damage of the next hit by 12%, until the eighth hit onwards which deal 20% of original damage.
  • All Perforator segments take 20% damage from grenade-type projectiles. A list of affected projectiles is below.
Resisted grenades
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  • All segments also take 50% damage from true melee hits.

Notes

  • The Perforator Hive can be defeated without killing any of the worms. If this happens, the worms will burrow away and despawn, and the Hive will still drop its loot as normal.

Tips

For elaborate strategies on defeating the Perforators, including Weapon and Arena recommendations, see Guide:The Perforators strategies.
  • Building a few layers of platforms within The Crimson will make avoiding the Perforators much easier.
    • The Perforators have extremely high speed when tunneling horizontally, and can tunnel through platforms if they reach them. Keeping platforms around 15 blocks above the ground and each other can help prevent this.
  • When a Perforator worm is spawned, the player should target it until it's dead while avoiding damaging the Hive, this will make sure the player isn't overwhelmed by multiple worms at once.
    • The worms will drop hearts on death, the player should remember where they killed the worms so they can use these hearts later unless they are hurt enough to warrant their immediate use.
  • The Perforator Hive will consistently float above the player, so weapons with projectiles are recommended as getting close is extremely difficult without high jump speed and vertical movement accessories.
  • Because the Perforator Hive gains damage resistance for each worm alive, it's highly recommended to kill each worm as they spawn to remove the damage resistance.
  • The player can fight The Perforators at the start of the game, though it is not recommended to fight these bosses until the Brain of Cthulhu is defeated, as the multi-boss fight and high damage can easily overwhelm an unprepared player.
  • During Hardmode, The Perforators can be fought to get an effective amount of Ichor. This is a highly effective way to get Ichor in a Corruption world, as The Perforators can be fought on a Crimson island.

Trivia

BestiaryBestiary entries

  • The Perforator Hive: "To tear and consume, taking for only themselves until there is nothing left– this was the primal instinct left behind by the gods which now form the Crimson. Their selfish desires coalesced into this hive, infested by ravenous worms whose sole desire is to devour."
  • The Perforators: "A living embodiment of some of the worst this world has to offer, these parasites made full use of their hive. Using it to seek ever more to gorge themselves upon, they sought to grow even larger, that they may one day perhaps regain what they lost."

History

These history sections are still a work-in-progress, and may not yet contain changes relevant to the current version of the Calamity Mod.
  • 2.0.4.005: Fixed multiplayer desyncs which caused the Perforator worms to appear as only a head.
  • 2.0.4.002:
    • Buffed small Perforator's head damage in Master Mode from 108 Master Mode to 126 Master Mode, body damage from 60 Master Mode to 72 Master Mode, and tail damage from 42 Master Mode to 48 Master Mode.
    • Buffed medium Perforator's head damage in Master Mode from 126 Master Mode to 147 Master Mode, body damage from 72 Master Mode to 87 Master Mode, and tail damage from 54 Master Mode to 60 Master Mode.
    • Buffed large Perforator's head damage in Master Mode from 162 Master Mode to 189 Master Mode, body damage from 84 Master Mode to 96 Master Mode, and tail damage from 66 Master Mode to 72 Master Mode.
    • Buffed blood shot, ichor shot, and ichor blob damage in Master Mode from 114 Master Mode to 120 Master Mode.
  • 2.0.4.001:
    • Buffed Perforator Hive's health from 5000 / 8000 Expert Mode / 9600 Revengeance Mode / 12,000 Master Mode / 14,400 Revengeance Mode Master Mode to 6000 / 9600 Expert Mode / 11,520 Revengeance Mode / 12,240 Master Mode / 14,688 Revengeance Mode Master Mode.
    • Buffed small Perforator's health from 1000 / 2000 Expert Mode / 2400 Revengeance Mode / 3000 Master Mode / 3600 Revengeance Mode Master Mode to 1200 / 2400 Expert Mode / 2880 Revengeance Mode / 2700 Master Mode / 3240 Revengeance Mode Master Mode.
    • Buffed medium Perforator's segment health from 150 / 300 Expert Mode / 360 Revengeance Mode / 450 Master Mode / 540 Revengeance Mode Master Mode to 180 / 360 Expert Mode / 432 Revengeance Mode / 405 Master Mode / 486 Revengeance Mode Master Mode (total health from 1800 / 4200 Expert Mode / 5400 Revengeance Mode / 5760 Death Mode / 6300 Master Mode / 8100 Revengeance Mode Master Mode / 8640 Death Mode Master Mode to 2160 / 5040 Expert Mode / 6480 Revengeance Mode / 6912 Death Mode / 5670 Master Mode / 7290 Revengeance Mode Master Mode / 7776 Death Mode Master Mode).
    • Buffed large Perforator's health from 2250 / 4500 Expert Mode / 5400 Revengeance Mode / 6750 Master Mode / 8100 Revengeance Mode Master Mode to 2700 / 5400 Expert Mode / 6480 Revengeance Mode / 6075 Master Mode / 7290 Revengeance Mode Master Mode.
    • Now properly scale their health in Master Mode. This should result in lower health overall.
    • Buffed the Perforator Hive's blood shot, ichor shot, and ichor blob damage from 36 / 56 Expert Mode / 68 Revengeance Mode / 76 Death Mode / 102 Master Mode to 36 / 56 Expert Mode / 68 Revengeance Mode / 80 Death Mode / 114 Master Mode.
    • Buffed small Perforator's head damage from 30 / 60 Expert Mode / 72 Revengeance Mode / 80 Death Mode / 102 Master Mode to 36 / 60 Expert Mode / 72 Revengeance Mode / 84 Death Mode / 108 Master Mode, body damage from 18 / 36 Expert Mode / 42 Revengeance Mode / 46 Death Mode / 60 Master Mode to 20 / 36 Expert Mode / 42 Revengeance Mode / 48 Death Mode / 60 Master Mode, and changed tail damage from 10 / 20 Expert Mode / 26 Revengeance Mode / 30 Death Mode / 45 Master Mode to 14 / 20 Expert Mode / 26 Revengeance Mode / 32 Death Mode / 42 Master Mode.
    • Buffed medium Perforator's head damage from 35 / 70 Expert Mode / 84 Revengeance Mode / 92 Death Mode / 126 Master Mode to 42 / 70 Expert Mode / 84 Revengeance Mode / 98 Death Mode / 126 Master Mode, body damage from 21 / 42 Expert Mode / 50 Revengeance Mode / 54 Death Mode / 69 Master Mode to 24 / 42 Expert Mode / 50 Revengeance Mode / 58 Death Mode / 72 Master Mode, and tail damage from 14 / 28 Expert Mode / 34 Revengeance Mode / 38 Death Mode / 54 Master Mode to 18 / 28 Expert Mode / 34 Revengeance Mode / 40 Death Mode / 54 Master Mode.
    • Buffed large Perforator's head damage from 45 / 90 Expert Mode / 108 Revengeance Mode / 118 Death Mode / 150 Master Mode to 54 / 90 Expert Mode / 108 Revengeance Mode / 126 Death Mode / 162 Master Mode, body damage from 24 / 48 Expert Mode / 56 Revengeance Mode / 60 Death Mode / 75 Master Mode to 28 / 48 Expert Mode / 56 Revengeance Mode / 64 Death Mode / 84 Master Mode, and tail damage from 18 / 36 Expert Mode / 42 Revengeance Mode / 46 Death Mode / 60 Master Mode to 22 / 36 Expert Mode / 42 Revengeance Mode / 48 Death Mode / 66 Master Mode.
    • Added new sounds for Perforator Hive spawn, Perforator Hive hit, death, firing blood shots, firing ichor blobs, and spawning worms, small Perforator hit and death, medium Perforator hit and death, and large Perforator hit and death.
    • No longer use a global scaling contact damage formula based on boss velocity. Instead, the Perforator worms now use a different formula for scaling contact damage based on velocity, which scales from half damage to full damage on the head, and 0 to full damage on the body and tail.
    • All Perforator worm bodies and tail are no longer immune to lifesteal.
    • Perforator Hive no longer deals contact damage in Classic and Expert Mode, and no longer deals contact damage while a Perforator is alive or during the ichor blob attack in Revengeance and Death Mode.
    • All Perforator worms now have a 400% health modifier in the Get fixed boi seed.
    • Decreased how far away the medium Perforator travels before turning around.
    • Large Perforator no longer does the burrow attack.
  • 2.0.3.005: Now drops Flesh of Infidelity instead of Blood Clot Staff.
  • 2.0.3.002: Changed the word "Gods" in the Perforator Hive's bestiary entry to be lower case.
  • 2.0.3.001: All Perforator worms are no longer trackable by the vanilla boss health bar.
  • 2.0.2.002:
    • Changed Boss Checklist Mod despawn message from "The parasitic hive began searching for a new host." to "The Perforators search for more hosts to gorge themselves on."
    • The Perforator Hive and all Perforators now properly display vanilla debuff colors and Hunter Potion effects.
  • 2.0.1.001:
    • The Hive's Blood Geysers now last 10 seconds instead of 7, but have a maximum vertical speed of 12.
    • Now drop 10-15 Crimtane Bars, Vertebrae, and Crimson Seeds instead of 12-15 of each, and now drops 25-30 Blood Samples instead of 35-45.
    • Treasure Bag now drops 30-40 Expert Mode Blood Samples instead of 45-60 Expert Mode, and now drops 25-30 Expert Mode Ichor instead of 15-30 Expert Mode.
  • 2.0.0.003: Fixed it and Hive Mind not being next to each on the Boss Checklist Mod.
  • 2.0.0.001:
    • The Perforator Hive now gains 30% damage reduction while a Perforator is alive instead of becoming invulnerable.
    • The Perforator Hive now drops its loot when defeated even if all Perforators are not yet defeated.
  • 1.5.1.003:
    • Now drops 15 Gold Coin.
    • Buffed Perforator Hive health from 4500 / 7200 Expert Mode / 8640 Revengeance Mode to 5000 / 8000 Expert Mode / 9600 Revengeance Mode.
    • Perforator Hive is no longer invulnerable while the Large Perforator is alive.
    • Perforator Worms now spawn at 75%, 50%, and 25% health respectively instead of 70%, 40%, and 10% on all world difficulties.
    • Fixed a bug that caused the Perforator Hive to stick on top of the player and spaz out.
  • 1.5.1.001:
    • Buffed The Perforator Hive health from 3750 / 6000 Expert Mode / 8640 Revengeance Mode to 4500 / 7200 Expert Mode / 8640 Revengeance Mode.
    • Smoothen The Perforator Hive's movement, overall making it slower.
    • Nerfed Small Perforator health from 1250 / 2125 Expert Mode / 2550 Revengeance Mode to 1000 / 2000 Expert Mode / 2400 Revengeance Mode.
    • Changed Medium Perforator health from 160 / 224 Expert Mode / 252 Revengeance Mode (1920 / 3584 Expert Mode / 4536 Revengeance Mode / 5040 Death Mode total) to 150 / 300 Expert Mode / 360 Revengeance Mode (1800 / 4200 Expert Mode / 5400 Revengeance Mode / 5760 Death Mode total).
    • Nerfed Medium Perforator segment count from 12 / 16 Expert Mode / 18 Revengeance Mode / 20 Death Mode to 12 / 14 Expert Mode / 15 Revengeance Mode / 16 Death Mode.
    • Buffed Medium Perforator fall speed but nerfed player tracking speed.
    • Nerfed Large Perforator health from 2500 / 5000 Expert Mode / 5400 Revengeance Mode to 2250 / 4500 Expert Mode / 5400 Revengeance Mode.
    • Nerfed Large Perforator fall speed after the lunge attack by 50%.
    • Nerfed all Perforators size modifiers in Death Mode from 125% to 120%.
    • The Hive and all worms are now vulnerable to cold, sickness, and heat debuffs.
    • All Perforators no longer drop Blood Samples, Crimtane Bars, or Vertebrae.
    • Blood Sample sprayed drops are now in stacks of 5.
    • Increased Blood Sample drop from The Perforator Hive from 25-30 / 30-40 Expert Mode to 35-45 / 45-60 Expert Mode.
    • Increased Crimtane Bar drop from The Perforator Hive from 2-5 / 9-14 Expert Mode to 12-15 / 15-20 Expert Mode.
    • Increased Vertebrae drop from The Perforator Hive from 3-9 / 10-20 Expert Mode to 12-15 / 15-20 Expert Mode.
    • Now drop 10-15 Crimson Seeds.
    • Now drop Bloody Worm Tooth regardless of world difficulty.
  • 1.5.0.002: Significantly decreased how often The Perforator worms burrow and lunge at the player on all world difficulties.
  • 1.5.0.001:
    • Nerfed Boss Rush health from 2,700,000 / 4,320,000 Expert Mode to 270,000 / 432,000 Expert Mode.
    • No longer immune to any debuffs except Confused and Pearl Aura.
    • The Perforator Hive now occasionally charges up and launches several Ichor blobs towards the player when below 70% health. Ichor blobs will linger on tiles for 10 seconds. This attack can not be performed if any Perforator worms are alive.
    • All projectiles spawned by the Perforator Hive can now pass through tiles so long as they are above the player.
    • The Perforator Hive will now deal no contact damage for the first 3 seconds after spawning in.
    • The Perforator Worm AI now uses custom AI instead of Worm AI.
    • The Perforator worms no longer drop Hearts in Revengeance or Malice Mode.
    • The Perforator Hive now inflicts Burning Blood for 3 seconds.
    • The Perforator Worms can no longer inflict Bleeding.
    • Increased Blood Sample drop amount in Normal Mode from 7-14 to 25-30.
    • Ichor drops are now compacted into stacks of 2.
  • 1.4.5.004:
    • The Perforator Hive now fires its projectiles less often while a Perforator worm is alive.
    • Now enrage outside of the Crimson.
    • Now less aggressive in the Underground Crimson.
    • The Perforator worms now move slower but gain speed as their health decreases.
    • Nerfed the medium Perforator worm's total health from 2000 / 3906 Expert Mode / 4912 Revengeance Mode / 5526 Death Mode to 1600 / 3122 Expert Mode / 4016 Revengeance Mode / 4518 Death Mode. Nerfed individual segment health from 200 / 279 Expert Mode / 307 Revengeance Mode to 160 / 223 Expert Mode / 251 Revengeance Mode.
    • The large Perforator worm now lunges at the player less often in all world difficulties.
  • 1.4.5.003:
    • Buffed Perforator Hive contact damage from 30 / 48 Expert Mode / 60 Revengeance Mode / 69 Death Mode to 30 / 54 Expert Mode / 63 Revengeance Mode / 72 Death Mode.
    • Buffed Small Perforator head damage from 30 / 60 Expert Mode / 72 Revengeance Mode / 79 Death Mode to 30 / 60 Expert Mode / 72 Revengeance Mode / 80 Death Mode.
    • Buffed Small Perforator body damage from 18 / 28 Expert Mode / 32 Death Mode to 18 / 36 Expert Mode / 42 Revengeance Mode / 46 Death Mode.
    • Buffed Small Perforator tail damage from 10 / 16 Expert Mode / 18 Death Mode to 10 / 20 Expert Mode / 26 Revengeance Mode / 30 Death Mode.
    • Buffed Medium Perforator head damage from 35 / 70 Expert Mode / 84 Revengeance Mode / 92 Death Mode to 35 / 70 Expert Mode / 84 Revengeance Mode / 92 Death Mode.
    • Buffed Medium Perforator body damage from 21 / 33 Expert Mode / 37 Death Mode to 21 / 42 Expert Mode / 50 Revengeance Mode / 54 Death Mode.
    • Buffed Medium Perforator tail damage from 14 / 22 Expert Mode / 25 Death Mode to 14 / 28 Expert Mode / 34 Revengeance Mode / 38 Death Mode.
    • Buffed Large Perforator head damage from 45 / 90 Expert Mode / 108 Revengeance Mode / 118 Death Mode to 45 / 90 Expert Mode / 108 Revengeance Mode / 118 Death Mode.
    • Buffed Large Perforator body damage from 24 / 38 Expert Mode / 43 Death Mode to 24 / 48 Expert Mode / 54 Revengeance Mode / 60 Death Mode.
    • Buffed Large Perforator tail damage from 18 / 28 Expert Mode / 32 Death Mode to 18 / 36 Expert Mode / 42 Revengeance Mode / 46 Death Mode.
    • The Perforator Hive's projectiles now rain in a consistent spread instead of at random.
    • All Perforator Worms no longer fire Blood clots, and all Perforator Worms now have increased size and body segments based on world difficulty.
      • Significantly reduced the speed of the Small Perforator in all difficulties, buffed health from 1250 / 1749 Expert Mode / 2099 Revengeance Mode to 1250 / 2125 Expert Mode / 2550 Revengeance Mode.
      • Medium Perforator can now split similarly to Eater of Worlds, changed health from 2000 / 2799 Expert Mode / 3079 Revengeance Mode total to 200 / 279 Expert Mode / 307 Revengeance Mode per segment.
      • Large Perforator can now burrow and lunge towards the player, buffed health from 2500 / 3499 Expert Mode / 3779 Revengeance Mode to 2500 / 5000 Expert Mode / 5400 Revengeance Mode.
  • 1.4.4.001: Perforator Hive and all three Perforators now have glowmasks.
  • 1.4.3.002:
    • Each worm now has a separate health bar from the Hive.
    • Now immune to Glacial State, Temporal Sadness, Time Distortion, Tesla Freeze, Eutrophication, Pearl Aura, Webbed, and Slow.
    • Fixed some velocity issues on the Revengeance Mode Perforator Hive.
  • 1.4.3.001:
    • Nerfed The Perforator Hive's contact damage from 30 / 48 Expert Mode / 60 Revengeance Mode / 69 Death Mode to 30 / 48 Expert Mode / 60 Revengeance Mode / 67 Death Mode.
    • Nerfed Large Perforator's head damage from 45 / 90 Expert Mode / 112 Revengeance Mode / 129 Death Mode to 45 / 90 Expert Mode / 108 Revengeance Mode / 118 Death Mode.
    • Nerfed Large Perforator's body damage from 24 / 38 Expert Mode / 43 Death Mode to 24 / 38 Expert Mode.
    • Nerfed Large Perforator's tail damage from 18 / 28 Expert Mode / 32 Death Mode to 18 / 28 Expert Mode.
    • Nerfed Medium Perforator's head damage from 35 / 70 Expert Mode / 87 Revengeance Mode / 100 Death Mode to 35 / 70 Expert Mode / 84 Revengeance Mode / 92 Death Mode.
    • Nerfed Medium Perforator's body damage from 21 / 33 Expert Mode / 37 Death Mode to 21 / 33 Expert Mode.
    • Nerfed Medium Perforator's tail damage from 14 / 22 Expert Mode / 25 Death Mode to 14 / 22 Expert Mode.
    • Nerfed Small Perforator's head damage from 30 / 60 Expert Mode / 75 Revengeance Mode / 86 Death Mode to 30 / 60 Expert Mode / 72 Revengeance Mode / 79 Death Mode.
    • Nerfed Small Perforator's body damage from 18 / 28 Expert Mode / 32 Death Mode to 18 / 28 Expert Mode.
    • Nerfed Small Perforator's tail damage from 10 / 16 Expert Mode / 18 Death Mode to 10 / 16 Expert Mode.
    • Nerfed blood geyser and ichor shot damage from 36 / 56 Expert Mode / 70 Revengeance Mode / 80 Death Mode to 36 / 56 Expert Mode / 70 Revengeance Mode / 78 Death Mode.
    • The Perforator Hive now has a greater acceleration but lower maximum speed.
    • In Revengeance Mode, The Perforator Hive has an even greater acceleration but even lower maximum speed as The Perforators are spawned, which is even more effective while any is alive.
    • All Perforators are now immune to Webbed.
    • Death Mode now causes all Perforators to move at highest speed immediately, instead of gradually speeding up as health lowers.
    • Decreased projectile firing rate in Death Mode.
  • 1.4.2.106:
    • Nerfed the Hive's contact damage from 35 / 56 Expert Mode to 30 / 48 Expert Mode, and buffed defense from 0 to 4.
    • Small Perforator changes:
      • Nerfed head's damage from 69 Expert Mode to 60 Expert Mode.
      • Nerfed body's damage from 20 / 28 Expert Mode to 18 / 28 Expert Mode, and defense from 8 to 4.
      • Buffed tail's damage from 14 Expert Mode to 16 Expert Mode, and nerfed defense from 18 to 8.
      • Buffed blood clot damage from 22 / 36 Expert Mode to 30 / 48 Expert Mode.
    • Medium Perforator changes:
      • Nerfed head's damage from 80 Expert Mode to 70 Expert Mode, and buffed defense from 0 to 2.
      • Nerfed body's damage from 25 / 35 Expert Mode to 21 / 33 Expert Mode, and defense from 10 to 6.
      • Changed tail's damage from 15 / 21 Expert Mode to 14 / 22 Expert Mode and nerfed defense from 22 to 10.
      • Buffed blood clot damage from 22 / 36 Expert Mode to 30 / 48 Expert Mode.
    • Large Perforator stat changes:
      • Changed head's damage from 40 / 92 Expert Mode to 45 / 90 Expert Mode, and buffed defense from 0 to 4.
      • Nerfed body's damage from 30 / 42 Expert Mode to 24 / 38 Expert Mode, and defense from 12 to 8.
      • Nerfed tail's damage from 20 to 18, and defense from 25 to 12.
      • Buffed blood clot damage from 22 / 36 Expert Mode to 30 / 48 Expert Mode.
  • 1.4.2.105:
    • Increased the Perforator Hive's speed.
    • Blood Geyser projectiles can now pass through tiles after 3 seconds have passed, and no longer pass through tiles at all times in Death Mode.
    • Ichor Shot projectiles now pass through tiles after 3 seconds have passed.
  • 1.4.2.102: Decreased the size of The Perforator Hive's burst dusts.
  • 1.4.2.101:
    • Buffed The Perforator Hive's health from 2500 / 4000 Expert Mode / 5750 Revengeance Mode / 8049 Death Mode to 3750 / 6000 Expert Mode / 8640 Revengeance Mode / 12,160 Death Mode, and Boss Rush health from 1,800,000 / 2,880,000 Expert Mode / 3,200,000 Death Mode to 2,700,000 / 4,320,000 Expert Mode / 4,800,000 Death Mode.
    • Nerfed the small Perforator's health from 2000 / 2800 Expert Mode to 1250 / 1750 Expert Mode, and Boss Rush health from 600,000 / 840,000 Expert Mode / 1,120,000 Death Mode to 500,000 / 700,000 Expert Mode / 840,000 Death Mode.
    • Nerfed the medium Perforator's health from 3000 / 4200 Expert Mode to 2000 / 2800 Expert Mode, and Boss Rush health from 900,000 / 1,260,000 Expert Mode / 1,540,000 Death Mode to 700,000 / 980,000 Expert Mode / 1,260,000 Death Mode.
    • Nerfed the large Perforator's health from 3500 / 4900 Expert Mode to 2500 / 3500 Expert Mode, and Boss Rush health from 1,200,000 / 1,680,000 Expert Mode / 2,100,000 Death Mode to 800,000 / 1,120,000 Expert Mode / 1,400,000 Death Mode.
  • 1.4.2.001:
    • Nerfed the Hive's Boss Rush health from 3,500,000 / 5,600,000 Expert Mode / 6,400,000 Death Mode to 1,800,000 / 2,880,000 Expert Mode / 3,200,000 Death Mode.
    • All three Perforators' body and tail segments can no longer be lifestealed off of.
    • The Hive is now immune to Glacial State and Temporal Sadness.
  • 1.4.1.003:
    • Increased The Perforator Hive minimum coin drop amount from 5 Gold Coin to 6 Gold Coin.
    • Increased the distance that The Perforator Hive hovers above the player.
  • 1.4.1.001:
    • Buffed The Perforator Hive's Boss Rush health from 2,400,000 / 3,840,000 Expert Mode / 4,800,000 Death Mode to 3,500,000 / 5,600,000 Expert Mode / 6,400,000 Death Mode.
    • Buffed Boss Rush damage modifier from 4.75x to 5x.
    • The Perforator Hive's Blood Geysers and the Perforators' Blood Clots now inflict Burning Blood for 2 seconds instead of 3.33.
    • The Perforator Hive's Ichor Shots now inflict Ichor for 3 seconds instead of 3.33.
    • The Perforators' heads and tails now inflict Bleeding in all difficulty modes instead of just Expert Mode and higher.
    • Increased Burning Blood duration from the small Perforator's head from 2 seconds to 3.
    • Increased Burning Blood duration from the medium Perforator's head from 3.33 seconds to 4.
    • Increased Burning Blood duration from the large Perforator's head from 4 seconds to 5.
    • Decreased Horror duration from all three Perforators' heads from 5 seconds to 3.
    • The Perforators' body segments can now inflict Burning Blood and Bleeding.
    • The Perforators' tails can now inflict Burning Blood.
  • 1.4.0.001:
    • Now have gores.
    • Lowered fire rate of the worm's projectiles.
    • Resprited Medium Perforator's Tail and Perforator Hive's Blood Geyser and Ichor Shots.
  • 1.3.4.101:
    • Buffed The Perforator Hive health from 2500 / 4000 Expert Mode / 5000 Revengeance Mode / 7000 Death Mode to 2500 / 4000 Expert Mode / 5750 Revengeance Mode / 8049 Death Mode.
    • The Perforator Hive no longer has 15% damage reduction.
    • The Perforator Hive now drops 10-21 Ichor in Hardmode in Normal Mode.
  • 1.3.4.001:
    • Nerfed The Perforator Hive's health from 2800 / 4480 Expert Mode / 6400 Revengeance Mode / 15,200 Death Mode to 2500 / 4000 Expert Mode / 5000 Revengeance Mode / 7000 Death Mode.
    • Nerfed the small Perforator's health from 2500 / 3500 Expert Mode to 2000 / 2800 Expert Mode.
    • Nerfed the medium Perforator's health from 3500 / 4900 Expert Mode to 3000 / 4200 Expert Mode.
    • Nerfed the large Perforator's health from 4500 / 6300 Expert Mode to 3500 / 4900 Expert Mode.
    • The Perforator Hive now only becomes invincible when the large Perforator is alive.
    • The Perforator Hive now plays a sound and creates a small, harmless dust burst whenever it shoots a volley of projectiles.
    • Slightly increased the speed of all three Perforators.
    • The Perforator Hive now drops 15-31 Expert Mode Ichor in Hardmode in Expert Mode.
  • 1.3.3.001:
    • Decreased small Perforator's segment count from 12 to 8.
    • Decreased medium Perforator's segment count from 22 / 8 Death Mode to 12 / 7 Death Mode.
    • Decreased large Perforator's segment count from 32 / 12 Death Mode to 17 / 9 Death Mode.
    • The Perforator Hive now has a 50% chance to shoot a volley of ichor shots instead of blood geysers.
    • Tweaked movement of all three Perforators.
    • Resprited it and map icon.
  • 1.3.2.001:
    • Nerfed blood geyser damage from 44 / 60 Expert Mode / 63 Revengeance Mode / 90 Death Mode to 32 / 48 Expert Mode / 50 Revengeance Mode / 72 Death Mode.
    • The small worm can now fire blood geyser projectiles.
    • Now spawns Aerialite Ore when defeated.
  • 1.3.1.001: Fixed a bug where the Perforator worms wouldn't spawn above a certain height during the fight.
  • 1.3.0.001:
    • Perforator Hive is no longer immune to Frostburn, Cursed Inferno, On Fire!, Poisoned, Brimstone Flames, Holy Flames, Plague, Glacial State, or Temporal Sadness.
    • Adjusted the Y velocity of the Perforator Hive's Blood Geyser projectiles.
    • Blood clot projectiles no longer create dust when destroyed.
  • 1.2.4.201: The individual Perforators no longer count as bosses, only the Hive does.
  • 1.2.4.101:
    • Buffed the Hive's health in Death Mode from 10,400 Death Mode to 15,200 Death Mode.
    • The small Perforator now loses 7 segments in Death Mode.
    • The medium Perforator now loses 14 segments in Death Mode.
    • The large Perforator now loses 20 segments in Death Mode.
    • Now uses Blood Coagulant as its theme.
  • 1.2.4.002:
    • Increased the max time it takes for the Perforator Hive to shoot volleys of projectiles.
    • Buffed blood geyser damage from 30 / 48 Expert Mode / 50 Revengeance Mode / 67 Death Mode to 44 / 60 Expert Mode / 63 Revengeance Mode / 84 Death Mode.
    • Worms now strictly spawn at every 30% of the Hive's health lost.
    • Worms no longer spawn directly from the Hive, and now spawn offscreen.
    • Worms' distance before flying decreased.
    • Fixed a bug where Perforator worms would sometimes attach heads to each other.
  • 1.2.3.005: The Perforator Hive now rapidly shoots blood geysers in Death Mode that go through tiles.
  • 1.2.3.002:
    • The Perforator Hive now gets 10,400 Death Mode health in Death Mode.
    • The Perforator Hive's blood geysers no longer collide with tiles in Death Mode.
  • 1.2.1.001: Fixed The Perforator Hive being unable to despawn properly.
  • 1.2.0.002: Merged its Boss Checklist entry with The Hive Mind's.
  • 1.2.0.001:
    • The Perforator Hive now gets 6400 Revengeance Mode health in Revengeance Mode.
    • The Perforator Hive now has 15% damage reduction.
    • All three Perforator's heads now inflict Horror for 5 seconds in Revengeance Mode.
    • Now has a 2% Revengeance Mode chance to drop Laudanum or Stress Pills in Revengeance Mode.
    • Fixed all of the Perforators' body and tail segments not counting as bosses.
  • 1.1.7.961: Blood Geyser projectiles now produce less dust.
  • 1.1.7.901:
    • Nerfed The Perforator Hive's health from 5000 / 6000 Expert Mode to 2800 / 4480 Expert Mode, and contact damage from 55 / 66 Expert Mode to 35 / 56 Expert Mode.
      • Buffed Blood Geyser damage from 44 Expert Mode to 48 Expert Mode.
      • Can now drop Aorta, Blood Bath, Blood Clot Staff, Bloody Rupture, Eviscerator, Sausage Maker, Tooth Balls, and Vein Burster in Normal Mode.
      • Can now only spawn up to 5 Perforator Minis at a time.
      • Increased Blood Sample drop count from 15-24 Expert Mode to 30-40 Expert Mode, Crimtane Bar drop count from 5-6 Expert Mode to 9-14 Expert Mode, and Vertebrae drop count from 7-8 Expert Mode to 10-20 Expert Mode.
      • Increased Tooth Ball drop count from 50-74 Expert Mode to 50-75 Expert Mode.
      • Increased the chances for all weapons to drop.
    • Small Perforator changes:
      • Buffed health from 2750 Expert Mode to 3500 Expert Mode
      • Changed head's damage from 53 / 58 Expert Mode to 30 / 68 Expert Mode.
      • Nerfed body's damage from 33 / 36 Expert Mode to 20 / 28 Expert Mode.
      • Nerfed tail's damage from 19 / 20 Expert Mode to 10 / 14 Expert Mode.
      • Nerfed Blood Clot projectile damage from 26 to 22.
      • Lowered segment count from 22 to 12.
      • No longer enrages outside of the Crimson.
    • Medium Perforator changes:
      • Nerfed health from 4500 / 4950 Expert Mode to 3500 / 4900 Expert Mode.
      • Changed head's damage from 65 / 71 Expert Mode to 35 / 80 Expert Mode.
      • Nerfed body's damage from 40 / 44 Expert Mode to 25 / 35 Expert Mode.
      • Nerfed tail's damage from 25 / 27 Expert Mode to 15 / 21 Expert Mode.
      • Nerfed Blood Clot projectile damage from 28 / 40 Expert Mode to 22 / 36 Expert Mode.
      • Lowered segment count from 32 to 22.
      • No longer enrages outside of the Crimson.
    • Large Perforator changes:
      • Nerfed health from 7000 / 7700 Expert Mode to 4500 / 6300 Expert Mode.
      • Changed head's damage from 80 / 88 Expert Mode to 40 / 92 Expert Mode.
      • Nerfed body's damage from 52 / 57 Expert Mode to 30 / 42 Expert Mode.
      • Nerfed tail's damage from 35 / 38 Expert Mode to 20 / 28 Expert Mode.
      • Nerfed Blood Clot projectile damage from 30 / 44 Expert Mode to 22 / 36 Expert Mode.
      • Lowered segment count from 42 to 32.
      • Head now produces less dust when killed.
    • Perforator Mini changes:
      • Buffed health from 100 / 120 Expert Mode to 100 / 140 Expert Mode.
      • Buffed head's damage from 22 Expert Mode to 28 Expert Mode.
      • Buffed body's damage from 12 Expert Mode to 15 Expert Mode.
      • Buffed tail's damage from 5 Expert Mode to 7 Expert Mode.
  • 1.1.7.801: Perforator worms no longer drop any coins, only their Hive does.
  • 1.1.7.701: The Perforator Hive now becomes invincible instead of despawning if the player leaves The Crimson.
  • 1.1.7.61:
    • Nerfed The Perforator Hive's Blood Geyser damage from 46 / 56 Expert Mode to 30 / 44 Expert Mode.
    • Nerfed the small Perforator's head damage from 68 Expert Mode to 58 Expert Mode, body damage from 42 Expert Mode to 36 Expert Mode, tail damage from 24 Expert Mode to 20 Expert Mode, and Blood Clot projectile damage from 40 / 60 Expert Mode to 30 / 44 Expert Mode.
    • Nerfed the medium Perforator's head damage from 84 Expert Mode to 71 Expert Mode, body damage from 52 Expert Mode to 44 Expert Mode, tail damage from 32 Expert Mode to 27 Expert Mode, and Blood Clot projectile damage from 38 / 52 Expert Mode to 28 / 40 Expert Mode.
    • Nerfed the large Perforator's head damage from 104 Expert Mode to 88 Expert Mode, body damage from 67 Expert Mode to 57 Expert Mode, tail damage from 46 Expert Mode to 39 Expert Mode, and Blood Clot projectile damage from 40 / 60 Expert Mode to 30 / 44 Expert Mode.
    • The Perforator Hive now takes up 10 NPC slots instead of 5.
    • All Perforators no longer drop any coins.
    • Individual Perforators can no longer spawn naturally.
  • 1.1.7.56:
    • Nerfed The Perforator Hive's health from 6000 / 7200 Expert Mode to 5000 / 6000 Expert Mode, and Blood Geyser damage from 60 / 68 Expert Mode to 46 / 56 Expert Mode.
    • The Perforators and their Hive now despawn if brought out of the Crimson for too long.
    • Blood Clot projectiles from the Perforators and Blood Geyser projectiles from the Hive now use dust type 235 instead of 5.
    • The Perforator Hive now emits light.
  • 1.1.7.55: The Perforator Hive is now invulnerable while the large Perforator is alive.
  • 1.1.7.5:
    • The Perforator Hive now spawns a Perforator Mini for every 30 hits instead of 15.
    • No longer spawn if the player is near a Celestial Pillar.
    • Resprited the Perforator Hive's map icon.
  • 1.1.7.2:
    • Introduced The Perforator Hive.
    • Buffed small Perforator's Blood Clot damage from 36 Expert Mode to 44 Expert Mode.
    • Buffed medium Perforator's Blood Clot damage from 44 Expert Mode to 52 Expert Mode.
    • Buffed large Perforator's Blood Clot damage from 48 Expert Mode to 60 Expert Mode.
    • The fight now begins with The Perforator Hive instead of all three Perforators at once, with the Hive spawning each of the three Perforators at different amounts of health.
    • The large Perforator no longer has scaling defense in Expert Mode based on which of the other Perforators are still alive.
    • The large Perforator no longer drops the Perforator Trophy, Perforator Mask, and Treasure Bag.
    • The Perforators no longer spawn Perforator Minis.
    • Decreased the small Perforator's Blood Sample drop count from 3-5 to 2-5, Vertebrae drop count from 1-4 to 1-3, and increased Crimtane Bar drop count from 1 to 1-2.
    • Decreased the medium Perforator's Blood Sample drop count from 5-10 to 3-7, and Vertebrae drop count from 2-7 to 2-4.
    • Decreased the large Perforator's Blood Sample drop count from 7-14 to 4-8, Vertebrae drop count from 3-9 to 3-5, and Crimtane Bar drop count from 2-5 to 2-4.
  • 1.1.7:
    • Buffed small Perforator's head damage from 40 / 52 Expert Mode to 53 / 68 Expert Mode, body damage from 23 / 29 Expert Mode to 33 / 42 Expert Mode, and tail damage from 9 / 11 Expert Mode to 19 / 24 Expert Mode.
    • Buffed medium Perforator's head damage from 55 / 71 Expert Mode to 65 / 84 Expert Mode, body damage from 31 / 40 Expert Mode to 40 / 52 Expert Mode, and tail damage from 11 / 14 Expert Mode to 25 / 32 Expert Mode.
    • Buffed large Perforator's head damage from 65 / 84 Expert Mode to 80 / 104 Expert Mode, body damage from 42 / 54 Expert Mode to 52 / 67 Expert Mode, and tail damage from 15 / 19 Expert Mode to 35 / 45 Expert Mode.
    • All three Perforators now enrage outside of the Crimson.
    • Decreased all three Perforators' spawnrates.
  • 1.1.6.15:
    • All body segments now produce less dust when hit.
    • All heads and tails now produce dust when hit.
    • All segments now produce dust when killed.
    • No longer take 50% damage from projectiles that pierce more than three times in Expert Mode.
    • Now drop Healing Potions.
    • Now referred to in their death messages by size.
  • 1.1.6.13: Increased speed of all three Perforators.
  • 1.1.5.081: All body segments should now have equal velocity and rotation formulas.
  • 1.1.5.08: Now have greater horizontal mobility.
  • 1.1.5.07: Small and Medium Perforator's tails no longer inflict Burning Blood.
  • 1.1.5.03: Fixed looping in their code which made them cause extreme lag when spawned.