Nautilus

This article describes content that is currently in development.

 

This content has appeared in development versions for Mounts of Mayhem, but the full update adding it has not been released yet.

Nautilus

Java Edition

Bedrock Edition

Health points	15HP × 7.5
Armor points	0 ()
Behavior	Neutral (untamed) Passive (tamed)
Mob type	Animal • Aquatic
Attack strength	Easy: 2.5HP × 1.25 Normal: 3HP Hard: 4.5HP × 2.25
Speed	1
Spawn	Cold Ocean Deep Cold Ocean Lukewarm Ocean Deep Lukewarm Ocean Ocean Deep Ocean Frozen Ocean Deep Frozen Ocean Warm Ocean
Usable items	Saddle Nautilus Armor Lead Shears Fish

{
    "title": "Nautilus",
    "rows": [
        {
            "field": "15<span class=\"hidden-alt-text\">HP</span><span class=\"nowrap mc-hearts\"><span class=\"iconbar pixel-image nowrap\" style=\"--icon-offset:-1px;\" title=\"1 mob heart\">(link to File:Mob Heart (icon).png article, displayed as 9px|link=|alt=❤️)</span> × 7.5</span>",
            "label": "(link to Health article, displayed as Health points)"
        },
        {
            "field": "0 (<span class=\"iconbar pixel-image nowrap\" style=\"--icon-offset:-1px;\" title=\"0 armor points\">(link to File:Empty Armor (icon).png article, displayed as 9px|link=|alt=🛡)</span>)",
            "label": "(link to Armor#Natural armor article, displayed as Armor points)"
        },
        {
            "field": "Neutral (untamed)<br>Passive (tamed)",
            "label": "Behavior"
        },
        {
            "field": "<span class=\"nowrap\"><span class=\"sprite-file\" style=\"\">(link to File:EntitySprite animal.png article, displayed as 16x16px|link=Animal|alt=|class=pixel-image|)</span>(link to Animal article, displayed as <span class=\"sprite-text\">Animal</span>)</span> • <span class=\"nowrap\"><span class=\"sprite-file\" style=\"\">(link to File:EntitySprite aquatic.png article, displayed as 16x16px|link=Aquatic|alt=|class=pixel-image|)</span>(link to Aquatic article, displayed as <span class=\"sprite-text\">Aquatic</span>)</span>",
            "label": "(link to Mob type article, displayed as Mob type)"
        },
        {
            "field": "Easy: 2.5<span class=\"hidden-alt-text\">HP</span><span class=\"nowrap mc-hearts\"><span class=\"iconbar pixel-image nowrap\" style=\"--icon-offset:-1px;\" title=\"1  heart\">(link to File:Heart (icon).png article, displayed as 9px|link=|alt=❤️)</span> × 1.25</span><br />Normal: 3<span class=\"hidden-alt-text\">HP</span><span class=\"nowrap mc-hearts\"><span class=\"iconbar pixel-image nowrap\" style=\"--icon-offset:-1px;\" title=\"1.5  hearts\">(link to File:Heart (icon).png article, displayed as 9px|link=|alt=❤️)(link to File:Half Heart (icon).png article, displayed as 9px|link=|alt=💔)</span></span><br />Hard: 4.5<span class=\"hidden-alt-text\">HP</span><span class=\"nowrap mc-hearts\"><span class=\"iconbar pixel-image nowrap\" style=\"--icon-offset:-1px;\" title=\"1  heart\">(link to File:Heart (icon).png article, displayed as 9px|link=|alt=❤️)</span> × 2.25</span>",
            "label": "Attack<br/>strength"
        },
        {
            "field": "1",
            "label": "(link to Attribute#Movement_speed article, displayed as Speed)"
        },
        {
            "field": "(values exceeds 1000 characters...)",
            "label": "(link to Mob spawning article, displayed as Spawn)"
        },
        {
            "field": "(values exceeds 1000 characters...)",
            "label": "Usable items"
        }
    ],
    "invimages": [
        "Nautilus Spawn Egg"
    ],
    "images": [
        "Nautilus.gif",
        "Baby Nautilus.gif",
        "Baby Nautilus Breathe BE2.gif",
        "Saddled Nautilus.png"
    ]
}

A nautilus is a neutral mob that can be tamed, saddled and ridden as an underwater mount that is able to dash and protects the rider from drowning. With no rider, it uses its dash to hunt pufferfish and to briefly retaliate if attacked. It can also be equipped with nautilus armor.

Spawning

Nautiluses spawn in all ocean biomes, where they can spawn individually or in groups of 2-3. nautiluses spawn between levels 38 and 58.

In Bedrock Edition, nautiluses have a chance to spawn as a baby.​^{[more information needed]}

Nautilus spawns in:

Category: Water creature‌[JE only] Creature‌[BE only]	Java Edition			Bedrock Edition
Spawn area	Spawn weight	Spawn chance	Group size	Spawn weight	Group size
Frozen Ocean[note 1]	3⁄6	50%	1	8	1
Deep Frozen Ocean[note 1]	3⁄6	50%	1–3	8	1–3
Cold Ocean[note 1]	3⁄6	50%	1–3	8	1–3
Deep Cold Ocean[note 1]	3⁄6	50%	1–3	8	1–3
Warm Ocean[note 1]	10⁄22	45.45%	1–3	8	1–3
File:BiomeSprite ocean-biomes.pngOcean biomes[note 1]	1⁄3	33.33%	1–3	8	1–3
Ocean[note 1]	1⁄3	33.33%	1–3	8	1–3
Deep Ocean[note 1]	1⁄3	33.33%	1–3	8	1–3
Deep Lukewarm Ocean[note 1]	2⁄12	16.67%	1–3	8	1–3
Lukewarm Ocean[note 1]	2⁄14	14.29%	1–3	8	1–3
File:BiomeSprite ocean-biomes.pngOcean biomes[note 1]	—	—	—	8	1–3

1. ↑ ^{a b c d e f g h i j k} ​^{[upcoming Mounts of Mayhem]}

Drops

On death

Item		Quantity / Chance / Average
		Default			Looting I			Looting II			Looting III
	Nautilus Shell	0–1	5.00%	0.05	0–1	5.00%	0.05	0–1	5.00%	0.05	0–1	5.00%	0.05

Item		Quantity / Chance / Average
		Default			Looting I			Looting II			Looting III
	Nautilus Shell	0–1	1⁄20	1⁄20	0–1	1⁄20	1⁄20	0–1	1⁄20	1⁄20	0–1	1⁄20	1⁄20

Item		Amount	Probability
			Default	Looting I	Looting II	Looting III
	Nautilus Shell	0	19⁄20 (95.00%)	19⁄20 (95.00%)	19⁄20 (95.00%)	19⁄20 (95.00%)
		1	1⁄20 (5.00%)	1⁄20 (5.00%)	1⁄20 (5.00%)	1⁄20 (5.00%)
		Average	1⁄20 (0.05)	1⁄20 (0.05)	1⁄20 (0.05)	1⁄20 (0.05)

Killed		1
Item		Expected Drops
		Default	Looting I	Looting II	Looting III
	Nautilus Shell	0.05	0.05	0.05	0.05

• 1–3XP when killed by a player or tamed wolf.
• If equipped with a saddle or nautilus armor, they drop those items.

Behavior

Like its real-world namesake, a nautilus's mouth and tentacles face backward with respect to their movement direction.

Nautiluses follow players holding any fish or bucket of fish within a 10-block radius.

Nautiluses are immune to the Poison effect.

Attacking

Nautiluses occasionally dash toward and attack nearby pufferfish. They also retaliate against players if provoked, also using their dash attack. When dashing toward a target on land, nautiluses can launch themselves out of the water and accidentally become beached on the land where they are unable to move.

They may also unintentionally attack a mob or player that stands between them and their target.

Taming

Nautiluses can be tamed by being fed pufferfish or buckets of pufferfish.

Healing and breeding

Adult nautiluses can be healed or bred by being fed any fish or any bucket of fish.

Food	Heals	Notes
Bucket of Cod	1HP
Bucket of Salmon
Bucket of Pufferfish
Bucket of Tropical Fish
Pufferfish	2HP	Does not inflict Hunger, Poison, or Nausea.
Tropical Fish
Raw Cod	4HP
Raw Salmon
Cooked Cod	10HP
Cooked Salmon	12HP × 6

Baby nautiluses require 20 minutes (24000 game ticks) to grow up into adult nautiluses. This process can be sped up using any fish or any bucket of fish:

• in Bedrock Edition, it takes 10 fish or bucket of fish for a baby nautilus to become an adult;
• in Java Edition, each fish or bucket of fish fed to a baby nautilus reduces its remaining growth time by 10%.

Weaknesses

Nautiluses take suffocation damage on land, like most other aquatic mobs. They can be controlled and even dash when on land, with their movement being much slower.

Usage

Tamed and saddled nautiluses can be used as a means of underwater transportation. When ridden, the player is granted the Breath of the Nautilus effect, which pauses the oxygen bar while underwater, making it so resurfacing for air is no longer needed. In Java Edition, the effect is ambient, meaning that the effect on the HUD has a blue outline, similar to effects from beacons.

Equipment

Tamed adult nautiluses can be equipped with a saddle and nautilus armor.

Equipment can be placed on a nautilus by holding it and then using it on the nautilus.

The equipment can be removed by using shears on the nautilus. If both a saddle and nautilus armor are equipped, they are removed one at a time. The first use removes the nautilus armor, and a second use removes the saddle.

Baby nautiluses cannot be equipped, as they cannot be ridden.

Riding

Once a nautilus is tamed and saddled, the player can control it with standard directional controls, jump, and the mouse, similarly to happy ghasts. The player dismounts using the dismount control. Like riding other entities, it is impossible for a player to use a Nether portal or End portal while on a nautilus.‌^{[Bedrock Edition only]}

Saddled nautiluses also have the ability to dash. When the player rides them, the experience bar on the HUD is replaced by a dash charging bar, similar to the dash charging bar for the camel. Dashing is done using the jump control, and holding the control charges for a longer dash. Dashing while moving upward near the surface results in a quick breach, wherein the nautilus and its rider break the surface briefly.

Sounds

Adult

Java Edition:

Bedrock Edition:

Baby

Java Edition:

Bedrock Edition:

Data values

ID

Java Edition:

Name	Identifier	Entity tags	Translation key
Nautilus	nautilus	aquatic can_breathe_under_water can_equip_saddle can_wear_nautilus_armor not_scary_for_pufferfish sensitive_to_impaling	entity.minecraft.nautilus

Bedrock Edition:

Name	Identifier	Numeric ID	Translation key
Nautilus	nautilus	149	entity.nautilus.name

Entity data

Nautiluses have entity data associated with them that contain various properties.

Java Edition:

Bedrock Edition:

See Bedrock Edition level format/Entity format.

Achievements

Icon		Achievement	In-game description	Actual requirements (if different)	Gamerscore earned	Trophy type (PS)
PS4	Other
		Overkill	Deal nine hearts of damage in a single hit.	Damage can be dealt to any mob, even those that do not have nine hearts of health overall.	30	Bronze
		It Spreads	Kill a mob next to a catalyst	—	10	Bronze
		Over-Overkill	Deal 50 hearts of damage in a single hit using the Mace	Damage can be dealt to any mob, even those that do not have 50 hearts of health overall.	20	Silver

Advancements

Icon	Advancement	In-game description	Actual requirements (if different)
	How Did We Get Here?	Have every effect applied at the same time	Have all of these 33/34​[upcoming Mounts of Mayhem] status effects applied to the player at the same time: Absorption Bad Omen Blindness Breath of the Nautilus​[upcoming Mounts of Mayhem] Conduit Power Darkness Dolphin's Grace Fire Resistance Glowing Haste Hero of the Village Hunger Infested Invisibility Jump Boost Levitation Mining Fatigue Nausea Night Vision Oozing Poison Raid Omen Regeneration Resistance Slow Falling Slowness Speed Strength Trial Omen Water Breathing Weakness Weaving Wind Charged Wither The source of the effects is irrelevant for the purposes of this advancement. Other status effects may be applied to the player, but are ignored for this advancement. See also: Tutorial:Advancement guide/Nether tab § How Did We Get Here? This is a hidden advancement, meaning that it can be viewed by the player only after completing it, regardless of if its child advancement(s), if any, have been completed.
	It Spreads	Kill a mob near a Sculk Catalyst	Kill any mob that drops experience near a sculk catalyst, with the sole exception of the ender dragon. Mobs that drop no experience are ignored for this advancement.
	The Parrots and the Bats	Breed two animals together	Breed a pair of any of these 26/27​[upcoming Mounts of Mayhem] mobs: Armadillo Axolotl Bee Camel Cat Chicken Cow Donkey Fox Frog Goat Hoglin Horse Llama Mooshroom Mule Nautilus​[upcoming Mounts of Mayhem] Ocelot Panda Pig Rabbit Sheep Sniffer Strider Trader Llama Turtle Wolf A mule must be the result of breeding a horse and a donkey for this advancement as they are not breedable together. Other breedable mobs are ignored for this advancement.
	Best Friends Forever	Tame an animal	Tame one of these 8/11​[upcoming Mounts of Mayhem] tameable mobs: Cat Donkey Horse Llama Mule Nautilus​[upcoming Mounts of Mayhem] Parrot Trader Llama Wolf Zombie Horse​[upcoming Mounts of Mayhem] Zombie Nautilus​[upcoming Mounts of Mayhem] Skeleton Horse can be tamed in the same way as a regular horse to gain this advancement with the ride command.
	Two by Two	Breed all the animals!	Breed a pair of each of these 26/27​[upcoming Mounts of Mayhem] mobs: Armadillo Axolotl Bee Camel Cat Chicken Cow Donkey Fox Frog Goat Hoglin Horse Llama Mooshroom Mule Nautilus​[upcoming Mounts of Mayhem] Ocelot Panda Pig Rabbit Sheep Sniffer Strider Turtle Wolf A trader llama does not count as a llama, and a mule must be the result of breeding a horse and a donkey for this advancement as they are not breedable together. Other breedable mobs can be bred, but are ignored for this advancement.

Advancements that apply to all mobs:

Icon	Advancement	In-game description	Actual requirements (if different)
	Adventure	Adventure, exploration and combat	Kill any mob, or be killed by any living entity.
	A Throwaway Joke	Throw a Trident at something. Note: Throwing away your only weapon is not a good idea.	Hit a mob with a thrown trident.
	Take Aim	Shoot something with an Arrow	Using a bow or a crossbow, shoot a mob with an arrow, tipped arrow, or spectral arrow.
	Mob Kabob​[upcoming JE 1.21.11]	Hit five mobs in the same Charge attack using the Spear.	Armor Stand and Mannequin also count for this advancement.
	Arbalistic	Kill five unique mobs with one crossbow shot	Armor Stand and Mannequin also count for this advancement. This is a hidden advancement, meaning that it can be viewed by the player only after completing it, regardless of if its child advancement(s), if any, have been completed.
	Over-Overkill	Deal 50 hearts of damage in a single hit using the Mace	Damage can be dealt to any mob, even those that do not have 50 hearts of health overall.

History

Announcement

September 26, 2025							Nautiluses are teased in a series of social media teasers.
September 27, 2025							Nautiluses are revealed at Minecraft LIVE – September 2025.

Java Edition

Upcoming Java Edition
1.21.11			25w41a				Added nautiluses.
			25w42a				Nautiluses can now be controlled on land.
							Baby nautiluses can now be fed any type of fish.
							Riding a nautilus underwater now plays an ambient sound.
			25w43a				Nautiluses can no longer be placed in boats.
							Equipping a saddle to a nautilus now plays a unique sound () rather than the standard sound ().
			25w44a				Nautiluses now retaliate against any mob, not just against players.
							Adult nautiluses now have unique swimming sounds () rather than fish swimming sounds (); baby nautiluses still use the fish swimming sounds.
							Equipping a saddle to a nautilus now plays a different sound depending on whether the nautilus is underwater () or not ().

Bedrock Edition

Upcoming Bedrock Edition
1.21.130			Preview 1.21.130.20				Added nautiluses.
			Preview 1.21.130.22				A tamed nautilus will now be tempted by all fish. This includes buckets of fish.
			Preview 1.21.130.24				Nautiluses now retaliate against any mob, not just against players.
			Preview 1.21.130.26				The nautilus and baby nautilus model has been fixed to match Java Edition.

Issues

Issues relating to "Nautilus" are maintained on the bug tracker. Issues should be reported and viewed there.

Trivia

• Prior to their addition to the game, in a 2023 Taking Inventory article on Minecraft.net, Duncan Geere stated that nautiluses may have once existed in the Minecraft world but possibly became extinct.^[1]
• While named after real-life nautiluses, the mob in the game is intended to be a "fantasy creature,"^[2] with its design being inspired by ammonites and the pre-existing nautilus shell item.^[3]
• The reasoning given for nautiluses pausing players' oxygen meters through the Breath of the Nautilus effect is that they eat pufferfish, which are used to brew potions of Water Breathing,^[4] despite the fact that the fish is poisonous to their real-life namesakes.
• Minecraft's Instagram social media managers had used a freeze frame of the first upload of Nautilus BE1 JE1.gif in one of their posts.^[5]

Gallery

Renders

• 
  Nautilus back side
• 
  Nautilus back side with a saddle equipped
• 
  Baby nautilus back side in Java Edition
• 
  Baby nautilus back side in Bedrock Edition

Animations

• 
  Nautilus breathing and swimming
• 
  Nautilus swimming‌^{[BE only]}
• 
  Nautilus charging (this animation is not used in-game)‌^{[BE only]}
• 
  Baby nautilus breathing and swimming‌^{[JE only]}
• 
  Baby nautilus breathing‌^{[BE only]}
• 
  Baby nautilus swimming‌^{[BE only]}

Nautilus with nautilus armor

• 
  Nautilus with copper nautilus armor swimming.
• 
  Saddled nautilus with copper nautilus armor swimming.
• 
  Nautilus with iron nautilus armor swimming.
• 
  Saddled nautilus with iron nautilus armor swimming.
• 
  Nautilus with golden nautilus armor swimming.
• 
  Saddled nautilus with golden nautilus armor swimming.
• 
  Nautilus with diamond nautilus armor swimming.
• 
  Saddled nautilus with diamond nautilus armor swimming.
• 
  Nautilus with netherite nautilus armor swimming.
• 
  Saddled nautilus with netherite nautilus armor swimming.

Development renders

• 
  Nautilus breathing (model used in Bedrock Edition from preview 1.21.130.20 to 1.21.130.26)
• 
  Nautilus swimming (model used in Bedrock Edition from preview 1.21.130.20 to 1.21.130.26)
• 
  Nautilus charging (this animation is not used in-game and model used in Bedrock Edition from preview 1.21.130.20 to 1.21.130.26)
• 
  Baby nautilus breathing (model used in Bedrock Edition from preview 1.21.130.20 to 1.21.130.26)
• 
  Baby nautilus swimming (model used in Bedrock Edition from preview 1.21.130.20 to 1.21.130.26)

Mojang images

• 
  A nautilus underwater
• 
  An adult nautilus and baby nautilus
• 
  A baby nautilus with a nautilus in the background
• 
  A nautilus swimming in a kelp forest
• 
  Zuri riding on a nautilus
• 
  Zuri escaping from a group of drowned while riding a nautilus
• 
  Multiple nautiluses swimming around a coral reef.
• 
  Some nautiluses with armors in a coral reef.

Textures

• 
  Nautilus texture file
• 
  Baby nautilus texture file
• 
  Nautilus saddle texture file

In other media

• 
  Nautilus in the ocean
• 
  Ditto but cutaway of pufferfish controlling the nautilus
• 
  Render of the nautilus used

References

Navigation

v t e Entities
Mobs Passive Allay Armadillo Axolotl Bat Camel Camel Husk​[upcoming] Cat Chicken Cod Copper Golem Cow Donkey Frog Glow Squid Happy Ghast Horse Mooshroom Mule Ocelot Parrot Pig Rabbit Salmon Sheep Skeleton Horse Sniffer Snow Golem Squid Strider Tadpole Tropical Fish Turtle Villager Wandering Trader Zombie Horse​[upcoming] BE & edu only Agent NPC Neutral Bee Cave Spider Dolphin Drowned Enderman Fox Goat Iron Golem Llama Nautilus​[upcoming] Panda Piglin Polar Bear Pufferfish Spider Trader Llama Wolf Zombie Nautilus​[upcoming] Zombified Piglin Hostile Blaze Bogged Breeze Creaking Creeper Elder Guardian Endermite Evoker Ghast Guardian Hoglin Husk Magma Cube Parched​[upcoming] Phantom Piglin Brute Pillager Ravager Shulker Silverfish Skeleton Slime Stray Vex Vindicator Warden Witch Wither Skeleton Zoglin Zombie Zombie Villager Bosses Ender Dragon Wither Mob types Animal Aquatic Arthropod Illager Monster Undead Other Jockey Camel Husk​[upcoming] Chicken Hoglin Ravager Skeleton Horseman Spider Strider Zombie Horseman​[upcoming] Zombie Nautilus​[upcoming] Mob variants
Other entities Player Alex Ari Efe Kai Makena Noor Steve Sunny Zuri Blocks Falling Blocks Anvil Concrete Powder Dragon Egg Gravel Pointed Dripstone Sand Red Sand Scaffolding Suspicious Gravel Suspicious Sand Primed TNT BE & edu only Falling Blocks Deprecated Anvil Snow Primed Underwater TNT Vehicles Bamboo Raft Boat with Chest Minecart with Chest with Command Block with Hopper with TNT Java Edition only Minecart with Furnace with Monster Spawner Projectiles Fireball Small Dragon Launched Firework Rocket Llama Spit Shot Arrow Tipped Shulker Bullet Thrown Bottle o' Enchanting Thrown Egg Thrown Ender Pearl Thrown Eye of Ender Thrown Snowball Thrown Splash Potion Lingering Potion Thrown Trident Wind Charge Wither Skull Java Edition only Shot Spectral Arrow BE & edu only Thrown Ice Bomb Stationary objects End Crystal Leash Knot Painting Java Edition only Item Frame Glow Miscellaneous Area Effect Cloud Armor Stand Evoker Fangs Experience Orb Fishing Bobber Items Lightning Bolt Ominous Item Spawner JE only Mannequin BE & edu only Balloon Camera Technical objects JE only Display Block Item Text Interaction Marker Editor only Location Pointer Idle Location Pointer Selected Map Marker Ruler Idle
Unimplemented Unused Zombie Horse‌[until Mounts of Mayhem] JE only Giant Illusioner Killer Bunny BE & edu only Elder Guardian Ghost Old Villager Old Zombie Villager Mentioned Alpaca Barnacle Crab Firefly Glare Great Hunger Iceologer Meerkat Minecart with Dispenser Moobloom Ostrich Penguin Pigman Rascal Red Dragon Shade Shark Termite Tuff Golem Vulture Wildfire Removed Builder MD3 Test Mob Mob Monster Shot Purple Arrow Sign Entity
Joke Mobs April Fools 2013 Diamond Chicken Horse Pony Pink Wither Redstone Bug April Fools 2015 Love Golem Pink Wither Smiling Creeper April Fools 2019 Nerd Creeper April Fools 2023 Moon Cow Ray Tracing April Fools 2024 Batato Mega Spud Plaguewhale Slab Poisonous Potato Zombie Potato mob category Toxifin Slab April Fools 2025 Angry Ghast Spectator Villager Spectator Witch Traitor Warden (boss) Pet variants Pet Armadillo Pet Axolotl Pet Bee Pet Cat Pet Chicken Pet Cow Pet Creeper Pet Fox Pet Frog Pet Mooshroom Pet Polar Bear Pet Slime Pet Turtle Pet Wolf Other entities April Fools 2013 Pink Wither Skull April Fools 2015 Obsidian Boat Pink Wither Skull April Fools 2024 Falling Block Gravtater Potato Eye