History:Eater of Worlds

Main article: Eater of Worlds

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.

2.0.1.001:
- 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.

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.

1.4.2.001:
- 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.

1.3.4.101:
- 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.

1.2.4.002:
- 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.

1.2.0.002:
- 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.

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