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Complementary Nautilus

Complementary Nautilus

MOD
Adds a nautilus mob to the oceans.
by nanorover59
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5,887 downloads
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Updated Oct 14, 2026
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Mobs
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Have you ever looked at the nautilus shell from vanilla Minecraft and felt like something is missing? A nautilus is a cephalopod with a spiral shell considered to be a "living fossil" more closely related to early cephalopods than other modern species.

Features:

  • The purpose of this mod is very straightforward: to add a nautilus mob to complement the item.
  • They will spawn rarely in any biome specified by the tag: data/nautilus/tags/worldgen/biome/spawns_nautilus.json
  • By default, this will be the ocean, lukewarm ocean, deep ocean, and deep lukewarm ocean biomes.
  • They drop exactly one nautilus shell.
  • The swimming motion is based on that of fish, but slightly faster to escape players.
  • Out of water, they will fall over onto their side.
I know the nautilus shell is supposed to be a rare item for crafting a conduit or trading for a trident. However, some players might find it too uncommon._
nautilus-neoforge-1.21.1-1.4.0.jar
MC 1.21.1, NeoForge
Release 2025-11-18 Get
nautilus-fabric-1.21.1-1.4.0.jar
MC Fabric, 1.21.1
Release 2025-11-18 Get

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