Duke Fishron

Duke FishronFirst FormHardmode exclusive***Map Icon*** Classic Expert MasterStatistics

Inflicts debuffsInflicts debuffs

Drops

Sounds

* Internal NPC ID: **370**
Duke FishronSecond FormHardmode exclusive***Map Icon*** Classic Expert MasterStatistics

Inflicts debuffsInflicts debuffs

Drops

* **Item (Quantity)****Rate**
* One of the following 5 items will be dropped
* Bubble Gun20%
* Flairon20%
* Razorblade Typhoon20%
* Tempest Staff20%
* Tsunami20%
* Fishron Wings6.67%
* Greater Healing Potion (5–15)100%
* Greater Healing Potion (5–15)100%
* Lesser Healing Potion (5–15)100%
* Duke Fishron Mask14.29%
* Duke Fishron Trophy10%
* Treasure Bag(Duke Fishron)100%
* Shrimpy Truffle100%
* Duke Fishron Mask14.29%
* One of the following 5 items will be dropped
* Bubble Gun20%
* Flairon20%
* Razorblade Typhoon20%
* Tempest Staff20%
* Tsunami20%
* Fishron Wings10%
* Gold Coin (25)100%
* Pork of the Sea25%
* Duke Fishron Relic100%
* Internal NPC ID: **370**

 *"Mutant terror of the sea."*
This article is about the Hardmode boss. For the quest fish, see Fishron. For the aquatic mount, see Cute Fishron. For the hardmode enemy, see Pigron.
**Duke Fishron** is a Hardmode boss. While he can be summoned as soon as Hardmode is initiated, he can pose a serious threat to new or underprepared players and should be fought later on in the game. Some players may challenge him with post-mechanical bosses gear, but most players may want to wait until post-Golem to battle him. Fighting Duke Fishron is completely optional and not required for game progression, but his defeat will reward the player with powerful weapons.

On the Old-gen console version, Windows Phone version, and Nintendo 3DSversion, Duke Fishron and Ocram are the final bosses due to the lack of the Moon Lord in these versions.

While Duke Fishron is alive, his exclusive music Duke Fishron will play. When Otherworldly music  is enabled, the track Boss 2 (Otherworldly) will play instead.

On the Old-gen console, Windows Phone, Old Chinese, 3DS, and tModLoader Legacy versions, Boss 1 will play.

### Quick Answers

**What is the best strategy to defeat Duke Fishron in Terraria?**

 Defeating Duke Fishron in Terraria requires a well-thought-out strategy. First, summon Duke Fishron by fishing in the Ocean biome using the Truffle Worm as bait. During the battle, keep in mind your distance from the Ocean to prevent Duke Fishron from becoming enraged, which makes the fight more difficult. Using an Anti-Gravity Hook and continuously moving in circles can help dodge attacks and dashes from the boss. In Expert Mode, the Shield of Cthulhu can provide brief invincibility frames when dashing into him. The Inferno Potion can also be handy to prevent damage from Duke's homing bubble attacks. Building a platform along the ocean can also be beneficial. Remember, defeating Duke Fishron is optional but rewards you with powerful weapons.

 Provided by: Fandom

**How can you summon Duke Fishron in the game?**

 Duke Fishron, the fish boss of Terraria, can be summoned by fishing in the Ocean using a Truffle Worm as bait. The Truffle Worm is a rare critter that you need to catch with the Bug Net, Golden Bug Net, or Lavaproof Bug Net in an underground Glowing Mushroom biome. Once the bobber bobs, reeling in the line spawns Duke Fishron. It's important to note that summoning Duke Fishron does not require that any other bosses have been defeated beforehand. He can also be summoned by fishing in lava or honey if within the Ocean biome. The player's Fishing Power is irrelevant to the summoning.

 Provided by: Fandom

**What are the rewards for defeating Duke Fishron?**

 Defeating Duke Fishron in Terraria rewards the player with powerful weapons. This makes the battle against him, although optional, quite beneficial for game progression. The specific loot you receive can vary, but the potential for high-powered gear makes the challenge worthwhile.

 Provided by: Fandom

**At what stage in the game is it recommended to fight Duke Fishron?**

 Duke Fishron is a Hardmode boss in Terraria and can be summoned as soon as Hardmode is initiated. However, due to his high difficulty level, it's recommended to fight him later in the game. Some players may challenge him with post-mechanical bosses gear, but most players may want to wait until post-Golem to battle him. Remember, fighting Duke Fishron is completely optional and not required for game progression.

 Provided by: Fandom

**Is defeating Duke Fishron necessary for game progression in Terraria?**

 No, defeating Duke Fishron in Terraria is not necessary for game progression. However, overcoming this formidable fish boss can reward players with powerful weapons that can significantly speed up game progression. It's a challenging but optional battle that can be undertaken at any point in Hardmode, although it's often recommended to face him later in the game or after gearing up sufficiently.

 Provided by: Fandom

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## Summoning

Duke Fishron is summoned by fishing in the Ocean using a Truffle Worm as bait. The Truffle Worm is a rare critter that must be caught with the Bug Net, Golden Bug Net, or Lavaproof Bug Net in an underground Glowing Mushroom biome. Once the bobber bobs, reeling in the line spawns Duke Fishron, who emerges from the water, pauses for a moment, and then begins attacking the player.

Summoning Duke Fishron does not require that any other bosses have been defeated beforehand, so on a technical level, he is only restricted by the Hardmode exclusive Truffle Worm, which can be used to spawn him in any world. If within the Ocean biome, he can also be summoned by fishing in lava or honey. The player's Fishing Power is irrelevant to the summoning, and Crate or Sonar potions will be wasted.

## Attacks

### Debuffs

When hitting the player in Expert Mode or Master Mode, Duke Fishron has a 33% chance to inflict Bleeding and a 33% chance to inflict Feral Bite. Bleeding can be ignored with an Adhesive Bandage or any of its upgrades, and all of Feral Bite's side effects will be prevented by the Ankh Charm or Ankh Shield.

### First stage

Duke Fishron lunges at the player exactly five times, traveling through blocks, before using one of two projectile attacks in this order:

* Detonating Bubble: Duke Fishron blows roughly 10-20 bubbles from his mouth that follow the player at moderate speed, exploding and dealing damage on contact. The bubbles can be destroyed by any attack or projectile. These inflict the Wet debuff for 3-8 seconds. Duke Fishron will either move to the top left or top right of the player's location before starting the attack. This attack is affected by wind. The Sharkron attack has the opposite direction of this attack, but it changes each time Duke Fishron is summoned.
* Sharkron: Duke Fishron waves his fins, summoning liquid blobs that fall (bypassing any platforms) until they travel 1.5x the vertical size of the screen or impact with blocks. They then spawn Sharknadoes: giant water tornadoes which are 29 blocks high and each fire several Sharkrons. Sharkrons have limited flight range, are destroyed on impact with blocks, and can be killed by the player.

### Second stage

When Duke Fishron falls below 50% (30000 / 39000 / 49500) health, he remains stationary for a second and transforms, being a good time to deal damage and/or consume Potions. His skin becomes a darker green and his eyes will start glowing. His damage and speed increase significantly, but his defense is reduced to 40. His lunges become faster, and are only performed three times instead of five before executing one of his projectile attacks, which are also upgraded:

* Detonating Bubbles are now fired while Duke Fishron flies in quick loops, which leave a trail of the bubbles behind. This attack will start in the same location relative to the player as the first stage detonating bubble.
* There is now only one "blob" that causes a tornado, but it follows the player, creating a Cthulhunado on the ground directly below the player (if the player is 95 blocks/190 feet above the surface directly below them, the blob will instead detonate on top of them). Cthulhunadoes are significantly bigger than Sharknadoes (58 blocks high, 23 blocks wide, 11 blocks from the center) and will spawn twice as many Sharkrons; they also deal double the damage of Sharknadoes.

### Third stage

**Expert Mode-Only Content**: This information applies *only* to **Expert Mode** and Expert Mode worlds.
When Duke Fishron falls below 15% (11700 / 14850) health, he will stop moving to transform again, and the background will be covered in a dark, blue fog. Duke Fishron will become invisible, but his eyes still glow. His damage will be reduced to 184 / 277, his defense will drop all the way to 0, and he will only attack by charging at the player, but he gains the ability to teleport behind them before doing so.
His charges will come in a set pattern:

* First, he will charge once before teleporting;
* Then, he will charge twice, and teleport behind the player again;
* Finally, he will charge three times, and the pattern will reset.

After being defeated, the background will return to normal, and his Treasure Bag will be dropped.

## Health in Multiplayer

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Duke Fishron

## Notes

* Staying too far from the Ocean area (more than 400 tiles from the (unreachable) lateral edge of the world) during the fight causes Duke Fishron to "enrage", lunging at the player continuously, dealing double damage, and gaining double defense (similar to Plantera's "enraged" behavior outside the Underground Jungle). However, Duke Fishron will not enrage whatsoever on Old-gen console. Note that altitude also matters: If the player is below surface level, or within 50 tiles from the top of the map (due to part of the map being unreachable, this distance is around 13 tiles in-game), Duke Fishron will enrage. Also, note that Duke Fishron will not despawn because of the biome or time of day.
* The following conditions regarding outer circumstances need to be met for being able to summon him:
	+ The player is within 380 tiles from the (unreachable) world's edge.
	+ The bobber is in a pool of water or lava which is larger than 1000 tiles (following the lake size rules) or in a pool of honey which is larger than 668 tiles.
	+ Duke Fishron is not alive anywhere in the world.
		- It is no longer possible for multiple Duke Fishrons to be spawned anymore, as the multiple fishing lines glitch was patched in the 1.4.0.1 update.

## Achievements

 **Fish Out of Water** • *“Defeat Duke Fishron, mutant terror of the sea.”*Defeat **Duke Fishron** for the first time. Category:  Slayer
## Tips

For more elaborate strategies on defeating Duke Fishron, including weapon and arena recommendations, see Guide:Duke Fishron strategies.
* Keep in mind your current distance from the Ocean that the boss was spawned at, to prevent him from becoming enraged and making the fight unnecessarily more difficult.
* The Inferno Potion can come in very handy during this fight to prevent taking any damage from Duke's homing bubble attacks. Since they are destroyed when damaged, the Inferno Potion's ring of fire will block them off completely.
* Players can build a platform along the top of the Ocean to avoid sinking. Water Walking Boots or Water Walking Potions can be used as a substitute for platforms.
* Duke Fishron's charges aim for where the player is, not where they will be. Because of this, moving perpendicularly with his charges will cause him to completely miss. Dodging his charges can be as simple as moving in a zig-zag pattern or a triangle, or utilizing equipment such as the Crystal assassin set, Shield of Cthulhu, Solar flare set or Tabi.
* He is the only boss that is immune to the Stunned debuff, making Heart Arrows useless against him.
* As Cthulhunadoes might be hard to see during nighttime, it is recommended to fight Duke Fishron during the day or use visual aids like the Shine Potion and Hunter Potion.
* Using an Anti-Gravity Hook on a block and continuously going in circles can successfully allow dodging every attack and dash from the boss when it is enraged.
* In Expert Mode, the Shield of Cthulhu can be used to great effect, providing brief invincibility frames when dashing into him.
* Though its difficulty makes it a post-Plantera or Golem boss, it is possible to defeat Duke Fishron before any Mechanical boss and obtain his drops to greatly ease the fight against them. Using some basic weapons like the Crystal Serpent, Daedalus Stormbow with Holy Arrows, and the Golden Shower can make defeating him a bit easier and will make a good majority of Hardmode a lot easier to progress through.

## Trivia

* Duke Fishron is the only boss with more Debuff immunities in his second stage than in his first
* Duke Fishron was originally part of an April Fools joke by Re-Logic that claimed an "Aquarian Horde" event was to be included in the game. Ultimately, only Duke Fishron made it into the game.
* In the  Wii U edition, the second phase's eyes will only glow when transforming and summoning Cthulhunadoes.
* Duke Fishron resembles a mutant creature in the second episode in the fourth season of the American animated science fiction sitcom *Futurama* titled "Leela's Homeworld".
* The Sharknado attack is an allusion to the 2013 American made-for-television sci-fi disaster film *Sharknado*.
* Duke Fishron turns transparent when over blocks, much the same way that Pigrons do.
* The Treasure Bag's image more resembles an actual pig, as it lacks the Fangs that Duke Fishron has.
* Duke Fishron drops an absurdly low amount of coins compared to other Hardmode bosses, despite being one of the toughest to defeat.
* Duke Fishron's weapon drops have considerably low reforge costs compared to other weaponry acquired around the same time.
* Duke Fishron (and by extension, the Cute Fishron) appears to be a combination of a shark, pig, and a dragon. Cenx confirmed that the Pigron was a cross between the latter two creatures, which proves this theory.
* The Cthulhunado could be a reference to Cthulhu's avatar the "Father of All Sharks".
* While fishing with a Truffle Worm and a Sonar Potion, it shows as a normal catch, however reeling the line in still summons Duke Fishron.
* Duke Fishron is the only boss with three distinct stages, one being Expert-mode exclusive.
* Duke Fishron is the only Hardmode boss that does not have to be defeated to progress the game.
	+ On the PC version, Console version, Mobile version, and tModLoader version, along with Duke Fishron, both the Empress of Light and Queen Slime are also Hardmode bosses that do not have to be defeated to progress the game.
* Duke Fishron is one of 7 bosses with exclusive music, the others being Queen Bee, Queen Slime, Deerclops, Empress of Light, Plantera, and Moon Lord.

The Bestiary entry for Duke Fishron: *"An aquatic pigron mutation from the depths of the ocean who surfaces in search of a rare, savory type of worm."*

## History

PC version
* Desktop 1.4.4:
	+ Health increased from 50,000 to 60,000
	+ Health scaling factor in Expert/Master increased from 1.6x to 1.65x
	+ Final Health values have increased from 50k/60k/76.5k to 60k/78k/99k
	+ Now invincible immediately after being summoned, and during his phase transitions
	+ Fixed an issue where Duke Fishron's Cthulhunado would sometimes instantly spawn on the player and hurt them, unavoidably. It should now spawn a certain distance below the player if there is no floor or platforms directly below, allowing the player time to avoid it
	+ When Enraged, Duke Fishron is much faster, and fires more frequent and faster Cthulhunados

* Desktop 1.4.0.5: Should now properly retarget another player in Multiplayer when the currently targeted player dies or teleports away.

* Desktop 1.4.0.1:
	+ Now uses his exclusive music. Previously it was Boss 1.
	+ Now drops Pork of the Sea and Duke Fishron Relic in Master Mode.
	+ Now drops 25 instead of 1.

* Desktop 1.3.1: Highly increased "run away" distance.

* Desktop 1.3.0.1:
	+ Now drops Treasure Bag in Expert Mode.
	+ A third stage and attack type is also implemented when fighting him in Expert mode.
	+ Now becomes enraged when leaving the ocean.
	+ Given a new death sprite.

* Desktop 1.2.4.1:
	+ Now drops Greater Healing Potions instead of Lesser Healing Potions.
	+ All of Fishron's weaponry now sells for 5 gold coins. This will fix the low reforge costs.
	+ Now only one Duke Fishron can be summoned at a time.

* Desktop 1.2.4: Introduced.

Console version
* Console 1.07: Introduced.

Nintendo Switch version
* Switch 1.0.711.6: Introduced.

Mobile version
* Mobile 1.2.11212: Introduced.

Nintendo 3DSversion
* 3DS-Release: Introduced.

## References

1. ↑ 1.0 1.1 1.2 1.3 Information taken from the PC 1.4.0.5 source code, method `AI_069_DukeFishron()` in `Terraria.NPC.cs`. There may be inaccuracies, as the current  PC version is 1.4.4.9.
2. ↑ 2.0 2.1 Information taken from the PC 1.4.0.5 source code, method `Kill()` in `Terraria.Projectile.cs`. There may be inaccuracies, as the current  PC version is 1.4.4.9.
3. ↑ See Detonating Bubble.
4. ↑ Cthulhu Mythos deities on Wikipedia (see Raandaii-B'nk section)

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