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Desktop version Desktop-Only Content: This information applies only to the Desktop version of Terraria.
DreadnautilusHardmode exclusive
Classic mode icon.png Classic
Expert mode icon.png Expert
Master mode icon.png Master
AI TypeDreadnautilus AI
Damage55/110/165 (melee)
~60???? (ranged)
Max Life7000/14000/21000
KB Resist100%
BannerDreadnautilus BannerDreadnautilus BannerDesktop version
Immune toConfused

The Dreadnautilus is a Hardmode enemy summoned by fishing during a Blood Moon. It is one of five enemies that can be summoned by fishing during a Blood Moon in Hardmode, the others being the Wandering Eye Fish, Zombie Merman, and the two other Hardmode-exclusives, the Blood Eel and Hemogoblin Shark. The Dreadnautilus is rarer than the other four Blood Moon fishing enemies, spawning from only 10*1/10 (10%) spawn attempts on average. It is widely considered the most difficult of these five enemies.

It is one of the few entities that can be detected by the Lifeform AnalyzerDesktop, Console, and Mobile versions.

Attacks[edit | edit source]

  • Spins around the player for roughly 3 seconds. It will damage the player upon contact.
    • While this attack is charging, Dreadnautilus will face away from the player and will reflect projectiles.
  • Fires a rapid spray of red projectiles at the player. During this attack, the Dreadnautilus will turn invincible.
  • Briefly glows crimson and summons three red symbols. After a moment, each symbol will summon a Blood Squid, which will attack the player with a ranged projectile that deals massive damage.

Tips[edit | edit source]

  • The Sonar Potion will detect if the Dreadnautilus is about to be hooked, and can give the player a moment of warning to back away and activate their potions.
  • Using the Chum Caster gives the player a greater chance of finding the Dreadnautilus and other blood moon fishing enemies. Using Sonar Potions will allow the player to skip past other blood moon fishing enemies and unrelated catches, letting them fight the Dreadnautilus more over the course of the night.
  • Summon weapons are useful for handling the Blood Squids while the player focuses on the Dreadnautilus. The Blade Staff is a great choice due to its defense-ignoring capabilities, and will ignore all of the Dreadnautlius' defence.
  • The Golden Shower can be helpful for lowering its high defense.
  • Hiding under blocks is useful as it blocks Blood Squid's projectiles, as well as the red spit projectiles the Dreadnautilus employs.
  • The Black Spot can be utilized to outspeed the spin attack. By using the dash ability from either the Shield of Cthulhu or the Tabi-related accessories, and then mounting The Black Spot immediately after, you can reach the max speed quickly.
  • Of the 3 attacks that the Dreadnautilus employs, only the spin attack will phase through walls, since the enemy itself also phases through walls. A good strategy to cheese the enemy is to build a box and use weapons that can attack through the walls like the Daedalus Stormbow with Ichor Arrows. When the player sees the enemy charge up for the spin attack, they should temporarily leave the box and re-enter after the enemy is finished or they can tank it by using Campfires, Heart Lanterns and Honey (and Regeneration Potions if the player is in higher difficulties).
  • Since this fight takes place at night with a possibility of rain, visibility can be an issue and can make projectiles difficult to perceive as the blood-colored rain is too similar in color. Using a Hunter Potion, along with a Night Owl Potion and Shine Potion, will help with visibility.

Trivia[edit | edit source]

  • Similar to the Sand Elemental and the Ice Golem, the Dreadnautilus is not a boss or mini-boss even though it has stats comparable to a boss. This is evidenced by its lack of a health bar, the fact that it drops a banner instead of a trophy and the fact that it does not drop a Relic in Master Mode.
    • Despite this, it is referred to as a miniboss in the 1.4 changelog.
  • It resembles a chambered nautilus, the creature after which it is named.
  • Its name is a portmanteau of "dreadnought," a type of early 20th-century battleship, and "nautilus," a marine mollusk of the Nautilidae family.
  • Its original name was "Blood Nautilus", as seen in the official Journey's End trailer.[1]
  • The dev team may have gotten the idea for adding shellfish boss to the game from an April fool's tweet by Cenx, stating that a boss called the Conch of Fish would be added, playing off the the acronym WoF for the Wall of Flesh.Verify
  • The BestiaryBestiary entry for the Dreadnautilus: "An enormous shelled water demon which feeds off the negative energy of a Blood Moon. Brutally responds to being pestered."

History[edit | edit source]

  • Desktop Should now properly retarget another player in Multiplayer when the currently targeted player dies or teleports away.

References[edit | edit source]