Eater of Worlds

Eater of Worlds

Map icon

Statistics

Type	Boss – Burrowing Enemy
Environment	The Corruption
Max Life	11,725 / 17,640 / 23,226 / 20,286 / 22,464 / 29,388 / 25,668
KB Resist	100%
Inflicts debuff	Weak 5% chance
Debuff duration	10 minutes
Debuff tooltip	Physical abilities are decreased
Immune to

Resistances

Cold	Vulnerable
Water	-
Sickness	Vulnerable
Electricity	-
Heat	Vulnerable

• Item (Quantity)Rate
• Shadow Scale (50-100 / 100-150 )
  100%
• Demonite Ore (100-250)
  100%
• Worm Scarf
  100%
• Lesser Healing Potion (5-15)
  100%
• Eater's Bone
  5%
• Eater of Worlds Mask
  14.29%
• Eater of Worlds Trophy
  10%
• Thank You
  1%
• The Eater of Worlds (Lore)(Always on first kill)
  100%
• Treasure Bag(Eater of Worlds)
  100%
• Writhing Remains(In Master or Revengeance Mode only)
  25% / 25%
• Eater of Worlds Relic(In Master or Revengeance Mode only)
  100% / 100%

Sounds

Hurt

Killed

Digging

If you were looking for the Eater of Worlds on the vanilla wiki, click here.

"That measly thing, devouring a planet? Ridiculous."

The Eater of Worlds is a Pre-Hardmode boss fought in the Corruption.

Spawn

The Eater of Worlds is summoned using Worm Food while inside the Corruption, or by destroying 3 Shadow Orbs that spawn in Corruption worlds. It can be summoned at any time of day.

Segments

Eater of Worlds Head

Statistics

Type	Burrowing Enemy
Environment	The Corruption
Damage	25 / 55 / 77 / 88 / 132 (Contact) 60 / 68 / 90 (Cursed Flame)
Max Life	175 / 245 / 294 / 312 / 372
Defense	2 / 4 / 8
KB Resist	100%
Inflicts debuff	Cursed Inferno 100% chance
Debuff duration	2-3 seconds (Cursed Flame)
Debuff tooltip	Losing life

Sounds

Cursed flame

Eater of Worlds Body

Statistics

Type	Burrowing Enemy
Environment	The Corruption
Damage	15 / 24 / 32 / 40 / 60 (Contact) 64 / 96 (Vile Spit)
Max Life	175 / 245 / 294 / 312 / 372
Defense	4 / 6
KB Resist	100%

Sounds

Vile spit

Eater of Worlds Tail

Statistics

Type	Burrowing Enemy
Environment	The Corruption
Damage	10 / 16 / 24 / 32 / 42
Max Life	175 / 245 / 294 / 312 / 372
Defense	8 / 10
KB Resist	100%

Behavior

Has increased damage reduction for a few seconds after spawning, to prevent cheap kills. It has 67 / 72 / 79 / 69 segments.

In Revengeance Mode

Segment count increased from 72 in Expert Mode to 79.

The Eater of Worlds will try to hit the player directly with its head segment, only stopping to turn around once it has gone past them. The body segments and tail will follow behind the head, with a body segment becoming a head if the Eater of Worlds is split and there are at least 2 segments, as that is the minimum length an Eater of Worlds can be.

If the Eater of Worlds splits into multiple worms, each one will act the same as a fully connected version, meaning that they will all attack the player with no regard for each other.

All segments share some characteristics:

• Can go through blocks
• Unaffected by liquids
• Immune to knockback
• Can shoot vile spit when there are only 71 segments remaining

The Head segment of an Eater of Worlds has the lowest defense and health but the most damage. They also have the ability to shoot Cursed Flames once there are 59 segments remaining. They retain their previous momentum if they have just been transformed from a body segment.

The Body segment of an Eater of Worlds is a middle ground of defense and attack between the Head and the Tail. They can also turn into a Head segment if they become the front segment of a Worm, or a Tail segment if they become the back segment of a Worm.

The Tail segment of an Eater of Worlds is the most resistant to damage but also deals the least damage.

When fought in the Underground Corruption, the Eater of Worlds will be less aggressive. However, when taken out of the Corruption it will enrage and continuously fly towards the player.

Unlike in lower difficulties, individual segments do not drop Demonite Ores or Shadow Scales when killed.

In Death Mode

• Segment count decreased to 69 segments. All segments begin shooting vile spit when 62 segments remain. Head begins shooting cursed flames at 51 segments.
• Can fly at players who are out of reach easier. It will also get increased acceleration and top speed as it's health decreases.
• The head segment as well as every other body segment gains 50% DR and double defense.

During the Boss Rush

• Max health increased to 2,500,000 / 3,500,000 / 4,550,000
• Becomes immune to all debuffs except Enraged, Kami Flu, and Shellfish Claps
• Takes 99.9% less damage for ten seconds after spawning

Aftermath

• The Merchant will begin selling Healing Potions and Mana Potions.

Resistances

• All 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 segments take 20% damage from grenade-type projectiles. A list of affected projectiles is below.

Resisted grenades
[link]Click/tap here to reveal this content. (there may be a slight delay)[/link]
This table requires JavaScript to be enabled and site tooltips to be turned on to be displayed. You can also view the data on another page.

• Additionally, all segments take:
  • 50% damage from the Demon Scythe and all true melee hits.
  • 60% damage from the Sky Glaze's feathers.
  • 70% damage from Jester's Arrows.

Tips

For more elaborate strategies on defeating the Eater of Worlds, including weapon and arena recommendations, see Guide:Eater of Worlds strategies.

History

edit

These history sections are still a work-in-progress, and may not yet contain changes relevant to the current version of the Calamity Mod.

• 2.0.3.007: Fixed its extra loot not appearing on the Boss Checklist mod.

• 2.0.3.005: Segments in Revengeance Mode or higher can no longer fire Vile Spit or cursed fireballs if the player is too close to them.

• 2.0.2.001: Fixed it not dropping Worm Scarf in Classic Mode.

• 2.0.1.001:
  • Decreased velocity of Cursed Fireball projectiles by 41.67% in Revengeance and Death Modes.
  • Cursed Fireball velocities are now doubled while enraged.
  • Significantly increased the brightness of Vile Spit projectiles in all modes.

• 2.0.0.001: Now takes 70% damage from Jester's Arrows.

• 1.5.1.003:
  • Every other body segment, and the head segments are now immune to all debuffs in Death Mode.
  • Head and tail segments no longer have increased defense and damage reduction in Malice Mode.
    • Instead, head segments and every other body segment has 50% damage reduction and 2x defense in Death Mode.
    • This has the effect of causing it to split more often in Death Mode.
  • Decreased total number of segments in Death Mode from 82 to 67.

• 1.5.1.001:
  • Buffed health from 150 / 210 / 273 (7500 / 10,500 / 21,567 / 22,932 total) to 175 / 245 / 294 (8750 / 12,250 / 23,226 / 24,696 total).
  • Now fires Cursed Flames in the direction its mouth faces instead of aiming towards the player.
  • In Revengeance Mode, segments no longer drop Demonite Ore or Shadow Scales. The treasure bag now contains an additional 120-240 Demonite Ore and 60-120 Shadow Scales.
  • Now vulnerable to cold, sickness, and heat debuffs.
  • Now drops Worm Scarf regardless of world difficulty.

• 1.5.0.003:
  • Segments now take 60% damage from Sky Glaze and Feather Crown feathers, and 50% damage from Demon Scythe projectiles.
  • Segments can now drop Hearts when they are killed on Revengeance Mode.
  • Fixed a bug that prevented it from being marked as dead when killed on Revengeance Mode.

• 1.5.0.001:
  • Nerfed Boss Rush health from 2,500,000 / 3,500,000 / 4,550,000 to 250,000 / 350,000 / 455,000 .
  • No longer drops Hearts in Revengeance or Malice Mode.

• 1.4.5.004:
  • No longer despawns outside of the Corruption but instead enrages in Revengeance Mode.
  • Now less aggressive when fought in the Underground Corruption in Revengeance Mode.
  • Now smaller in Death Mode.

• 1.4.5.003:
  • Can now fly at players out of reach more easily, and increases in velocity and acceleration as its health decreases in Death Mode.
  • Now splits during Boss Rush.
  • Fixed a bug that caused it to desync between clients, rarely become invisible, and have near-infinite health in multiplayer.

• 1.4.3.001:
  • Buffed head damage from 22 / 48 / 60 / 69 to 22 / 48 / 60 / 72 .
  • Nerfed Vile Spit damage from 65 / 74 to 65 .
  • Nerfed cursed flame damage from 60 / 69 to 60 / 68 .
  • Death Mode changes:
    • Transitions into Phase 2, 3, and 4 immediately instead of below 90%, 75%, and 40% health.
    • Transitions into Phase 5 below 33% health instead of 10%.
    • Fires projectiles at the highest rate immediately, instead of gradually increasing rate as health lowers.
    • Moves at the highest speed immediately, instead of gradually speeding up as health lowers.
    • Slightly decreased maximum speed and acceleration.
    • Decreased player tracking distance when flying.

• 1.4.2.106:
  • Buffed head, body, and tail's Boss Rush healths from 20,000, 30,000, and 40,000 all to 2,500,000.
  • Fixed it not spawning correctly during Boss Rush.

• 1.4.2.105:
  • Reworked Revengeance Mode AI:
    • Now gets faster based on how many segments are left.
    • Now fires less cursed flames and vile spits later in the fight.
    • No longer gets a few seconds of extreme damage reduction when a head dies.
    • Now takes 60% damage from non-minion piercing projectiles.
    • No longer has an increased segment count compared to Expert Mode.
    • Worms will not be staggered when their head is killed, and will keep moving.
  • No longer reflects projectiles in Death Mode.

• 1.4.2.002: Fixed a resistance bug.

• 1.4.2.001:
  • Nerfed head Boss Rush health from 40,000 to 20,000.
  • Nerfed body Boss Rush health from 60,000 to 30,000.
  • Nerfed tail Boss Rush health from 80,000 to 40,000.
  • Nerfed contact damage modifier while enraged from 5x to 2.25x.
  • Now takes 1% damage from all sources for 8 seconds after spawning.
  • Body and tail segments can no longer be lifestealed off of.

• 1.4.1.001:
  • Buffed head Boss Rush health from 20,000 to 40,000.
  • Buffed body Boss Rush health from 30,000 to 60,000.
  • Buffed tail Boss Rush health from 40,000 to 80,000.
  • Buffed Boss Rush damage modifier from 3.5x to 5x.
  • No longer deals extra contact damage in Revengeance Mode.

• 1.4.0.001: Lowered projectile fire rates in Revengeance Mode.

• 1.3.4.101:
  • Buffed health modifier from 1.25x / 1.35x to 1.3x / 1.4x .
  • Body segments no longer have 10% damage reduction, and tail segments no longer have 20% damage reduction.

• 1.3.4.001: Nerfed health modifier from 1.35x / 2.05x to 1.25x / 1.35x .

• 1.3.3.001:
  • Now takes 80% damage from infinitely piercing projectiles instead of 25% in Revengeance Mode.
  • No longer divides projectile damage by the amount of times that said projectile pierces in Revengeance Mode.

• 1.2.4.101: Buffed Death Mode health modifier from 1.35x to 2.05x .

• 1.2.4.002:
  • Head now reflects projectiles in Death Mode.
  • No longer resists Spears and projectiles which act like them, such as Arkhalis.
  • Buffed Death Mode health modifier from 1.25x to 1.35x .

• 1.2.3.005: Head now gains a 1.85x damage modifier, and body and tail segments gain a 1.5x damage modifier.

• 1.2.3.002: Now gains a 1.5x health modifier in Death Mode

• 1.2.0.002:
  • Head now inflicts Marked for Death for 3 seconds in Revengeance Mode.
  • No longer fires cursed flame projectiles more often if the player has high Stress.

• 1.2.0.001:
  • Now gains a 1.25x health and damage modifier in Revengeance Mode.
  • Now cuts the damage of infinitely piercing projectiles by 50% instead of 20%.
  • Head now inflicts Horror for 3 seconds, body inflicts Horror for 2 seconds, and tail inflicts Horror for 1 second in Revengeance Mode.
  • Now has a 2% chance to drop Laudanum or Stress Pills in Revengeance Mode.

• 1.1.7.801: The status message "Rotten cysts are oozing from the corrupt land..." now appears when defeated.