Nautilus

Natural generation

Nautiluses are water creatures that spawn in ocean biomes. The Java spawn tables include cold, regular, lukewarm, warm and frozen oceans; the biome weight is 1 in warm, lukewarm and regular oceans, and 2 in cold and frozen oceans. A natural spawn must be in water: the block below and the block above the spawn position must both contain water, and the position is between 25 blocks below sea level and 5 blocks below sea level.

The entity is an aquatic animal rather than a drowned variant. Zombie nautilus is a separate hostile entity with its own spawn and loot rules, so the two pages should not be treated as one mob.

• OceanBiome
• Deep OceanBiome
• Zombie NautilusMob

Drops

When a nautilus is killed by a player, its entity loot table rolls for one nautilus shell. The base chance is 5%; Looting increases the chance by one percentage point per level above the first. A saddle is not a normal nautilus drop: it is equipment used to ride a tamed adult.

• Nautilus ShellItem
• SaddleItem
• Zombie NautilusMob

Sounds

Adults and babies use separate underwater and land variants. Riding, dashing,

feeding, and swimming each have dedicated events.

Behavior

Nautiluses swim, use water-bound navigation and can attack hostile aquatic targets when they are untamed adults. They are immune to poison, have 15 health and use a water movement controller. A nautilus can be tamed with a pufferfish or pufferfish bucket; the bucket is returned as a water bucket. Feeding fish heals the animal, and a tamed nautilus can breed with fish-tag food to produce a baby.

A tamed adult can equip a saddle and carry a player. While ridden, it grants the rider the Breath of the Nautilus effect, follows the rider's vertical look direction and can dash after a jump input. The dash has a 40-tick cooldown. Nautiluses can also be leashed when they are not aggravated or being controlled.

• PufferfishItem
• DrownedMob
• SquidMob

Data values

The stable identifier is `minecraft:nautilus`. The entity stores its tame

state, saddle and body equipment, and resets its air supply to 300 ticks while

underwater.

• Nautilus Spawn EggItem
• SaddleItem
• Nautilus ShellItem

History

The nautilus is designed as a rideable aquatic animal with two distinct growth states. Feeding a tamed adult fish-tag food creates a baby, while the adult ride profile adds a saddle, a rider breathing effect, and a short dash with a fixed cooldown.

• SaddleItem
• PufferfishItem
• Zombie NautilusMob

Gallery

See also

• Mob catalogue
• Minecraft Wiki overview
• OceanBiome
• Cold OceanBiome
• Lukewarm OceanBiome
• Warm OceanBiome
• Frozen OceanBiome
• Zombie NautilusMob
• Nautilus ShellItem
• SaddleItem
• DrownedMob

References

The page is backed by the shared nautilus base class, its concrete entity,

spawn rules, tags, loot table and sound registry.

Data: References

Local source	Nautilusnautilus
Shared behavior	net/minecraft/world/entity/animal/nautilus/AbstractNautilus.java
Entity implementation	net/minecraft/world/entity/animal/nautilus/Nautilus.java
Spawn placement	net/minecraft/world/entity/SpawnPlacements.java
Taming tag	data/minecraft/tags/item/nautilus_taming_items.json
Food tag	data/minecraft/tags/item/nautilus_food.json
Bucket food tag	data/minecraft/tags/item/nautilus_bucket_food.json
Entity loot	data/minecraft/loot_table/entities/nautilus.json
Sound registry	net/minecraft/sounds/SoundEvents.java

• OceanBiome
• Cold OceanBiome
• Lukewarm OceanBiome
• Warm OceanBiome
• Frozen OceanBiome
• Zombie NautilusMob
• Nautilus Spawn EggItem

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