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Random Mob SizesMinecraft mod for 1.21.10

configure mobs to spawn in different sizes

client and servernewest supported release 1.21.10AdventureMobs
Latest version
1.21.10-2.2.2-Forge
Minecraft
1.18.2 to 1.21.10
Java
Java 21+
Loaders
NeoForge, Forge, Fabric
Licence
CC-BY-NC-ND-4.0
Downloads
239.5k
Updated
11 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Random Mob Sizes servers

One click and Random Mob Sizes is installed with the right loader, on hardware built for it.

  • 1.21.10
  • NeoForge
  • Forge
  • Fabric
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version Random Mob Sizes declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.10NeoForge, Forge, Fabric21+declared7 Oct 2025
1.21.9Fabric, NeoForge, Forge21+declared30 Sept 2025
1.21.8Forge, NeoForge, Fabric21+declared17 Jul 2025
1.21.7Forge, NeoForge, Fabric21+declared30 Jun 2025
1.21.6NeoForge, Forge, Fabric21+declared17 Jun 2025
1.21.5NeoForge, Forge, Fabric21+declared25 Mar 2025
1.21.4Fabric, NeoForge, Forge21+declared3 Dec 2024
1.21.1Forge, NeoForge, Fabric21+declared8 Aug 2024
1.21NeoForge, Fabric, Forge21+declared13 Jun 2024
1.20.6Forge, Fabric, NeoForge21+declared29 Apr 2024
1.20.4NeoForge, Forge, Fabric17+declared7 Dec 2023
1.20.1Fabric, NeoForge, Forge17+declared12 Jun 2023
1.20Forge, NeoForge, Fabric17+declared2 Jun 2023
1.19.4Forge, NeoForge, Fabric17+declared14 Mar 2023
1.19.3Forge, NeoForge, Fabric17+declared7 Dec 2022
1.19.2Forge, NeoForge, Fabric17+declared5 Aug 2022
1.19.1Forge, NeoForge, Fabric17+declared27 Jul 2022
1.19Forge, NeoForge, Fabric17+declared7 Jun 2022
1.18.2Forge, NeoForge, Fabric17+declared28 Feb 2022

Download

From Random Mob Sizes’s own host. Nothing is re-hosted here.

Browse 60 indexed releases

For Minecraft 1.21.10

Choose the loader you use before downloading.

  • Forge

    1.21.10-2.2.2-Forge · 4 Dec 2025 · randommobsizes-forge-1.21.10-2.2.2.jar

    Get Forge

  • Fabric

    1.21.10-2.2.2-Fabric · 4 Dec 2025 · randommobsizes-fabric-1.21.10-2.2.2.jar

    Get Fabric

  • NeoForge

    1.21.10-2.2.2-NeoForge · 4 Dec 2025 · randommobsizes-neoforge-1.21.10-2.2.2.jar

    Get NeoForge

Most recently published release

1.21.10-2.2.2-Forgerelease4 Dec 2025

randommobsizes-forge-1.21.10-2.2.2.jar · 98 KB · for 1.21.10, 1.21.9 · Forge

Download this release
2cac4e23e184…
Older versions24
  • 1.21.10-2.2.2-Fabric4 Dec 20251.21.10, 1.21.972 KB3.7k downloads61dedad0a345…Get
  • 1.21.10-2.2.2-NeoForge4 Dec 20251.21.10, 1.21.998 KB143 downloads797e2f702543…Get
  • 1.21.8-2.2.2-Forge13 Sept 20251.21.898 KB189 downloads16667144315d…Get
  • 1.21.8-2.2.2-Fabric13 Sept 20251.21.873 KB1.1k downloads5e47aa3920a0…Get
  • 1.21.8-2.2.2-NeoForge13 Sept 20251.21.898 KB205 downloadsb43da5d9e6b7…Get
  • 1.21.7-2.2.2-Forge10 Sept 20251.21.798 KB47 downloads466a5d1776b1…Get
  • 1.21.7-2.2.2-Fabric10 Sept 20251.21.773 KB129 downloads3aee02e5df29…Get
  • 1.21.7-2.2.2-NeoForge10 Sept 20251.21.798 KB49 downloadsa5a7cd05e203…Get
  • 1.21.6-2.2.2-Forge10 Sept 20251.21.698 KB74 downloadsd51259dfcd69…Get
  • 1.21.6-2.2.2-Fabric10 Sept 20251.21.673 KB343 downloads7a88ec85d680…Get
  • 1.21.6-2.2.2-NeoForge10 Sept 20251.21.698 KB39 downloadscccd541938e6…Get
  • 1.21.5-2.2.2-Forge24 Jun 20251.21.598 KB158 downloads77d334adf342…Get
  • 1.21.5-2.2.2-Fabric24 Jun 20251.21.573 KB1.1k downloadsd80057e0363d…Get
  • 1.21.5-2.2.2-NeoForge24 Jun 20251.21.598 KB122 downloads60f7103eaa49…Get
  • 1.21.4-2.2.2-Forge22 Dec 20241.21.498 KB620 downloadsfb9fb62fad56…Get
  • 1.21.4-2.2.2-Fabric22 Dec 20241.21.473 KB4.5k downloads4c2c7bfed9e0…Get
  • 1.21.4-2.2.2-NeoForge22 Dec 20241.21.498 KB370 downloads24819d910c1c…Get
  • 1.20.1-2.2.3-Forge13 Oct 20241.20.10.1 MB36.7k downloads9e9ef46923be…Get
  • 1.20.1-2.2.3-Fabric13 Oct 20241.20.187 KB19.2k downloads27a951421925…Get
  • 1.21.1-2.2.2-Forge6 Oct 20241.21.1, 1.2198 KB978 downloads21e985405090…Get
  • 1.21.1-2.2.2-Fabric6 Oct 20241.21.1, 1.2173 KB65.0k downloadsac43a360ad9c…Get
  • 1.21.1-2.2.2-NeoForge6 Oct 20241.21.1, 1.2198 KB9.5k downloadsca21cdff26c2…Get
  • 1.20.6-2.2.2-Forge6 Oct 20241.20.698 KB132 downloadsbb107d2d3df6…Get
  • 1.20.6-2.2.2-Fabric6 Oct 20241.20.673 KB243 downloadsacd5e654730b…Get

Frequently asked

Does Random Mob Sizes work on Minecraft 1.21.10?

Yes. 1.21.10 is the newest Minecraft version Random Mob Sizes 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 Random Mob Sizes support?

Everything the author has declared, from 1.18.2 up to 1.21.10. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Random Mob Sizes 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 Random Mob Sizes 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 Random Mob Sizes?

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 Random Mob Sizes under?

CC-BY-NC-ND-4.0, 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 Random Mob Sizes?

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 Random Mob Sizes 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.

Cloth Config API (Fabric/Forge/NeoForge)Config Screen API for MinecraftJourneyMapReal-time map used for mapping in-game or your browser as you explore.Architectury APIAn intermediary api aimed to ease developing multiplatform mods.Enchantment DescriptionsAdds in-game descriptions for enchantments to tooltips.Jade 🔍Shows information about what you are looking at. (Hwyla/WAILA fork for Minecraft 1.16+)Collective🎓 Collective is a shared library with common code for all of Serilum's mods.

Details from Modrinth, where the author last updated it on 4 Dec 2025. 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? .