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Barnacle Buttery

by Barnacle1102

Barnacle Buttery adds the Kasai Booby, its baby form, and the Sime and Boot ants as spawnable mobs for NeoForge worlds.

NeoForgeServer required, client optionalMIT License1.21.1

What it does

Barnacle Buttery spawns extra creature variants into the world, including the Kasai Booby and a baby Kasai Booby, along with the Sime ant and the Boot ant. Spawning is driven by the Spawn mod, which the card requires, so the new mobs follow the spawn rules that Spawn provides.

The mod runs on NeoForge for 1.21.1 and is also available as a data pack. Because the server is the side that needs it, a server can run Barnacle Buttery while players join without installing anything, though clients may add it too. The license is the MIT License, and the project is not open source. Files were first published on 2026-07-24 and last updated on 2026-10-09, with v1.1.0 as the latest build.

Key features

  1. Kasai Booby mob

    Adds the Kasai Booby as a spawnable mob that appears in the world alongside vanilla creatures.

  2. Baby Kasai Booby

    Includes a smaller baby form of the Kasai Booby, so the species has young and adult variants.

  3. Sime ant

    Adds the Sime ant as an additional spawnable creature.

  4. Boot ant

    Adds the Boot ant as a further spawnable ant variant for the world.

Compatibility

Latest build for each game version and loader.

1.21.1v1.1.0+mod
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Requirements

Dependencies declared by the latest file for each loader.

Required 1

SpawnAn overworld wilderness overhaul that adds tons of animals, biomes, ambience and functionality
Required

Use cases

Populating new worlds

Servers that want more creatures in their worlds can add the Kasai Booby and ant variants without changing vanilla mob behavior.

Pack building

Modpack makers can combine the new mobs with other NeoForge content on 1.21.1 that also depends on Spawn.

Who it’s for: Server owners who want extra spawnable creatures on NeoForge for 1.21.1, and players who run a modded server with Spawn already installed.

Questions

Does Barnacle Buttery need Spawn?

Yes. Spawn is a required dependency, so it must be installed alongside Barnacle Buttery on NeoForge for 1.21.1.

Does a client need Barnacle Buttery to join a server that runs it?

No. Only the server must run the mod, and players can join without it, though they may install it as well.

Which loader and game version does Barnacle Buttery target?

Its files target NeoForge for 1.21.1 only, and the data pack form is also listed for that version.

In the catalog

Barnacle Buttery is one of 11,058 Mobs mods on ModsFinder, and one of 4,974 Mobs mods for NeoForge. 32,366 mods support Minecraft 1.21.1.

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Official listing

Owner
Barnacle1102
Published
2026-07-24
Updated on Modrinth
2026-10-09
Facts verified
2026-10-15

Tags