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Animal Pens Expansion - NaturalistMinecraft mod for 1.21.1

This is addon for Animal Pens that enables Naturalist mobs.

client and servernewest supported release 1.21.1UtilityGame Mechanics
Latest version
6.0.0
Minecraft
1.18.2 to 1.21.1
Java
Java 21+
Loaders
NeoForge, Forge, Fabric
Licence
GPL-3.0-only
Downloads
2.4k
Updated
4 d ago
Available on
Modrinth
Space NodeOur hosting

Host Animal Pens Expansion - Naturalist servers

One click and Animal Pens Expansion - Naturalist is installed with the right loader, on hardware built for it.

  • 1.21.1
  • NeoForge
  • Forge
  • Fabric
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

Every version Animal Pens Expansion - Naturalist declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge, Forge, Fabric21+declared8 Aug 2024
1.20.1Fabric, NeoForge, Forge17+declared12 Jun 2023
1.19.2Fabric, Forge, NeoForge17+declared5 Aug 2022
1.19.1Fabric, NeoForge, Forge17+declared27 Jul 2022
1.19NeoForge, Forge, Fabric17+declared7 Jun 2022
1.18.2NeoForge, Fabric, Forge17+declared28 Feb 2022

Download

From Animal Pens Expansion - Naturalist’s own host. Nothing is re-hosted here.

Most recently published release

6.0.0release29 May 2026

animal_pen_expansion_naturalist_lite-neoforge-6.0.0.jar · 0.1 MB · for 1.21.1 · NeoForge

Download this release
2ef9bed942ad…
Older versions4
  • 5.0.022 Apr 20261.20.10.1 MB310 downloads5002bb682ff2…Get
  • 4.0.022 Apr 20261.19.20.1 MB19 downloadsb27fddfe83b5…Get
  • 2.0.022 Apr 20261.19.2, 1.19.1, 1.190.1 MB10 downloads3d12d83565a9…Get
  • 1.0.022 Apr 20261.18.20.1 MB38 downloads547599f245b0…Get

Frequently asked

Does Animal Pens Expansion - Naturalist work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Animal Pens Expansion - Naturalist declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does Animal Pens Expansion - Naturalist support?

Everything the author has declared, from 1.18.2 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Animal Pens Expansion - Naturalist on the client or the server?

Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.

Which platform or loader does Animal Pens Expansion - Naturalist support?

NeoForge, Forge, Fabric. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Animal Pens Expansion - Naturalist?

Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

What licence is Animal Pens Expansion - Naturalist under?

GPL-3.0-only, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install Animal Pens Expansion - Naturalist?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download Animal Pens Expansion - Naturalist safely?

Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

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Details from Modrinth, where the author last updated it on 11 Oct 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .