Nuclear Terror

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Nuclear Terror
Nuclear Terror.png
EnvironmentAcid Rain
DamageThis attack will cause defense damage on hit. 170 / 272 Expert Mode / 408 Master Mode (Contact)
96 / 192 Expert Mode / 220 Death Mode (Bullet, Mist)
Max Life90000 / 144000 Expert Mode / 216000 Master Mode
KB Resist100%
Inflicts debuffIrradiatedIrradiated
100% chance
Debuff duration5 seconds (Contact)
Debuff tooltipYour skin is burning off
Inflicts debuffSulphuric PoisoningSulphuric Poisoning
100% chance
Debuff duration4 seconds (Medium bullets)
5 seconds (Large bullets)
Debuff tooltipThe acidic water burns away your flesh
Inflicts debuffAcid VenomAcid Venom
100% chance
Debuff duration2 seconds (Acid mist)
Debuff tooltipLosing life
Immune toConfusedPoisonedAcid VenomIrradiatedSulphuric Poisoning

The Nuclear Terror is a post-Moon Lord, post-Polterghast mini boss that spawns during Acid Rain during Tier 3. It has 3 special attacks and 2 other attacks which it uses when not using the special attacks. The three special attacks are as follows:

  • Fires 3-shot bursts of small nuclear bullets at the player, which will return to their firing position shortly after being fired.
  • Fires a barrage of larger nuclear bullets at the player.
  • Fires two converging streams of large nuclear bullets to trap the player.

After it has used a special attack, it will stay in place for approximately 1 second (the cooldown is shorter when under 50% life), and then it will lunge at the player multiple times, returning to using a special attack afterwards. It can also teleport to the player, which is telegraphed by green dust.

If the player is below it, it will teleport to the same layer as the player, even if it is in the middle of attacking.

Upon death, the Nuclear Terror will explode into a number of large nuclear bullets and acid mist in all directions.


  • The BestiaryBestiary entry for the Nuclear Terror: "Perhaps it was once just a simple crab or perhaps there are plenty of others like it, lurking in the depths. Any answer is sure to make you want to never set foot in the sulphurous sea again."
  • The Nuclear Terror's design was inspired by the Horror character from the game Nuclear Throne.
  • The Nuclear Terror’s previous health of 360,420 prior to the Draedon Update was a reference to the memes '360 NoScope' and '420 Blaze it'.