History:Eater of Worlds

Main article: Eater of Worlds

• 2.0.4.003:
  • Now always targets the same player until they die. Body segments still fire vile spit at the closest player.
  • Nerfed damage reduction in Boss Rush from 80% to 60%.

• 2.0.4.002:
  • Buffed head damage in Master Mode from 132 to 165 , and tail damage from 36 to 48 . Buffed cursed fireball damage from 108 to 114 .
  • Fixed it always taking 1 damage outside of Revengeance Mode.

• 2.0.4.001:
  • Decreased number of segments in Revengeance and Death Mode from 79 / 69 to 64 / 59 . This nerfs overall health from 11,725 / 17,640 / 23,226 / 20,286 / 22,464 / 29,388 / 25,668 to 11,725 / 17,640 / 18,816 / 17,346 / 22,464 / 23,808 / 21,948 .
  • Buffed head damage from 25 / 55 / 77 / 88 / 132 to 38 / 55 / 77 / 99 / 132 , and body damage in Classic Mode from 15 to 18. Changed tail damage from 10 / 16 / 24 / 32 / 42 to 12 / 16 / 24 / 32 / 36 .
  • Buffed cursed fireball damage from 26 / 44 / 60 / 68 / 90 to 26 / 44 / 60 / 76 / 108 .
  • Can now turn the Calamity Boss Health Bar red when enraged outside of Revengeance Mode.
  • No longer uses a global scaling contact damage formula based on boss velocity. Instead, it now uses 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.
  • Body and tail are no longer immune to lifesteal.
  • Vile spit now inflicts Brain Rot for 3 seconds. It also always inflicts Weak for 1 second, with a 50% chance to inflict it for 2 seconds, a 20% chance to inflict it for 12 seconds, and a 10% chance to inflict it for 1 minute.
  • Revengeance Mode changes:
    • Splitting segments now regain health based on overall health.
    • Surface enrage no longer triggers when in front of unsafe Ebonstone walls.
    • Now always fires vile spit instead of only firing them below 90% health, and fire rate now increases as its health lowers.
    • Now starts firing cursed fireballs when below 80% health instead of 75%, cursed fireballs always inflict Cursed Inferno for 1 second, fire rate now gets slower as health lowers, and Death Mode no longer increases fire rate.
    • Slightly increased velocity given when a new head spawns, but it now only gains this velocity if far enough away from the player.
    • Now gains increased speed and acceleration when below 20% health instead of 10%.
    • Increased speed and acceleration boosts given when below 40% and 20% health.
  • Slightly decreased its maximum falling speed, heads now push away from each other, and fires shadowflame fireballs instead of cursed fireballs in Death Mode.
  • Now moves and accelerates faster, starts flying at a smaller distance, and shoots vile spit twice as fast in Master Mode.
  • Now spawns as 4 smaller worms, gains an extra 6 / 3 segments, always fires cursed fireballs and has its first speed and acceleration boost, gains a quick burst of speed and accelerates its cursed fireball timer when a head is hit, gains its second speed and acceleration boost at 50% health instead of 20%, gains additional boosts to speed and acceleration at 10% and 5% health, and predicts the player's movement below 5% health in Revengeance Master Mode.
  • Initial damage reduction in Boss Rush now smoothly scales down from 99% to 80%, and decreased aggression in Boss Rush.
  • No longer takes 70% damage from Jester's Arrows.
  • Fixed cursed fireballs not receiving damage values in Classic and Expert Mode.

• 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.