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.
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
Verified by MCModsHub
- Ships as nautilus-neoforge-1.21.1-1.4.0.jar — drop this file into the mods folder
- Download size: 27 KB
- Download link checked 30 Aug 2026 — working
These come from our own check of the pack file, not from the source page.