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data pack

Random Mob SizesMinecraft data pack for 26.3

Random all the mob sizes in your world. (You can configure it as you want) [Optimized + Compatibility]

server onlynewest supported release 26.3AdventureMobsCursed
Latest version
1.3.7+quilt
Minecraft
1.20.5 to 26.3
Works with
Quilt, NeoForge, Forge, Fabric
Licence
MIT
Downloads
28.7k
Updated
1 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Random Mob Sizes servers

Deploy a server with Random Mob Sizes already added to the world, on hardware built for it.

  • 26.3
  • Data pack
  • Quilt
  • NeoForge
  • Forge
  • One click install
  • Version matched
  • Automatic backups
  • 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 data packs
MinecraftThroughJavaEvidenceReleased
26.3Data pack, Quilt, NeoForge, Forge, Fabric25+declared15 Sept 2026
26.2Fabric, Quilt, NeoForge, Forge, Data pack25+declared16 Jun 2026
26.1.2Fabric, Quilt, NeoForge, Forge, Data pack25+declared9 Apr 2026
26.1.1Fabric, Quilt, NeoForge, Forge, Data pack25+declared1 Apr 2026
26.1Fabric, Quilt, NeoForge, Forge, Data pack25+declared24 Mar 2026
1.21.11NeoForge, Quilt, Forge, Fabric, Data pack21+declared9 Dec 2025
25w45aData pack, Quilt, NeoForge, Forge, Fabric21+declared4 Nov 2025
25w44aFabric, Quilt, NeoForge, Forge, Data pack21+declared28 Oct 2025
25w43aFabric, Quilt, NeoForge, Forge, Data pack21+declared21 Oct 2025
25w42aFabric, Quilt, NeoForge, Forge, Data pack21+declared14 Oct 2025
25w41aForge, Quilt, Data pack, NeoForge, Fabric21+declared9 Oct 2025
1.21.10Data pack, Fabric, Forge, NeoForge, Quilt21+declared7 Oct 2025
1.21.9Data pack, Quilt, NeoForge, Forge, Fabric21+declared30 Sept 2025
1.21.8Fabric, Quilt, NeoForge, Forge, Data pack21+declared17 Jul 2025
1.21.7Fabric, Quilt, NeoForge, Forge, Data pack21+declared30 Jun 2025
1.21.6Fabric, Quilt, NeoForge, Forge, Data pack21+declared17 Jun 2025
1.21.5Fabric, Quilt, NeoForge, Forge, Data pack21+declared25 Mar 2025
1.21.4Data pack, Quilt, NeoForge, Forge, Fabric21+declared3 Dec 2024
1.21.3Data pack, Quilt, NeoForge, Forge, Fabric21+declared23 Oct 2024
1.21.2Fabric, Quilt, NeoForge, Forge, Data pack21+declared22 Oct 2024
1.21.1Fabric, Quilt, NeoForge, Forge, Data pack21+declared8 Aug 2024
1.21Fabric, Quilt, NeoForge, Forge, Data pack21+declared13 Jun 2024
1.20.6Fabric, Quilt, NeoForge, Forge, Data pack21+declared29 Apr 2024
1.20.5Quilt, Fabric, Forge, NeoForge, Data pack21+declared23 Apr 2024

Download

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

Browse 70 indexed releases

For Minecraft 26.3

Choose the loader you use before downloading.

  • Quilt

    1.3.7+quilt · 15 Sept 2026 · RandomMobSizes_quilt_mod.jar

    Get Quilt

  • NeoForge

    1.3.7+neoforge · 15 Sept 2026 · RandomMobSizes_neoforge_mod.jar

    Get NeoForge

  • Forge

    1.3.7+forge · 15 Sept 2026 · RandomMobSizes_forge_mod.jar

    Get Forge

  • Fabric

    1.3.7+fabric · 15 Sept 2026 · RandomMobSizes_fabric_mod.jar

    Get Fabric
Browse all loaders and releases

Most recently published release

1.3.7+quiltrelease15 Sept 2026

RandomMobSizes_quilt_mod.jar · 30 KB · for 26.3, 26.2, 26.1.2, 26.1.1, 26.1 +10 more · Quilt

Download this release
18d4efdd47f0…
Older versions24
  • 1.3.7+neoforge15 Sept 202626.3, 26.2, 26.1.2, 26.1.1, 26.1 +10 more30 KB7667a6dac209…Get
  • 1.3.7+forge15 Sept 202626.3, 26.2, 26.1.2, 26.1.1, 26.1 +10 more30 KB09ef9618ad46…Get
  • 1.3.7+fabric15 Sept 202626.3, 26.2, 26.1.2, 26.1.1, 26.1 +10 more30 KB8b960aefb10b…Get
  • 1.3.715 Sept 202626.3, 26.2, 26.1.2, 26.1.1, 26.1 +10 more20 KB7cf95671e875…Get
  • 1.3.6+quilt15 Sept 202626.330 KBfa5a756a5737…Get
  • 1.3.6+neoforge15 Sept 202626.330 KB79a2818df6c3…Get
  • 1.3.6+forge15 Sept 202626.330 KB7167620d065e…Get
  • 1.3.6+fabric15 Sept 202626.330 KBc987d9d2f390…Get
  • 1.3.615 Sept 202626.320 KB585dc3da466b…Get
  • 1.3.5+quilt16 Jun 202626.2, 26.1.2, 26.1.1, 26.1, 1.21.11 +9 more30 KB33 downloadsc9e214916325…Get
  • 1.3.5+neoforge16 Jun 202626.2, 26.1.2, 26.1.1, 26.1, 1.21.11 +9 more30 KB89 downloads7e18dc75b9b2…Get
  • 1.3.5+forge16 Jun 202626.2, 26.1.2, 26.1.1, 26.1, 1.21.11 +9 more30 KB66 downloadsd1743e8442e9…Get
  • 1.3.5+fabric16 Jun 202626.2, 26.1.2, 26.1.1, 26.1, 1.21.11 +9 more30 KB1.7k downloads06e4cfd61d8e…Get
  • 1.3.516 Jun 202626.2, 26.1.2, 26.1.1, 26.1, 1.21.11 +9 more20 KB280 downloadsb184b4a210d9…Get
  • 1.3.4+quilt11 Apr 202626.1.2, 26.1.1, 26.1, 1.21.11, 1.21.10 +8 more30 KB42 downloads49ccb095e56e…Get
  • 1.3.4+neoforge11 Apr 202626.1.2, 26.1.1, 26.1, 1.21.11, 1.21.10 +8 more30 KB119 downloadsac6150f96bb1…Get
  • 1.3.4+forge11 Apr 202626.1.2, 26.1.1, 26.1, 1.21.11, 1.21.10 +8 more30 KB91 downloadsc56e942718b0…Get
  • 1.3.4+fabric11 Apr 202626.1.2, 26.1.1, 26.1, 1.21.11, 1.21.10 +8 more30 KB3.5k downloadsc606a818543e…Get
  • 1.3.411 Apr 202626.1.2, 26.1.1, 26.1, 1.21.11, 1.21.10 +8 more20 KB315 downloads68cc82e0dea0…Get
  • 1.3.3+quilt24 Mar 202626.1, 1.21.11, 1.21.10, 1.21.9, 1.21.8 +6 more30 KB44 downloadsf53e536f7578…Get
  • 1.3.3+neoforge24 Mar 202626.1, 1.21.11, 1.21.10, 1.21.9, 1.21.8 +6 more30 KB34 downloads892131d66f1f…Get
  • 1.3.3+forge24 Mar 202626.1, 1.21.11, 1.21.10, 1.21.9, 1.21.8 +6 more30 KB29 downloads8de0fee534de…Get
  • 1.3.3+fabric24 Mar 202626.1, 1.21.11, 1.21.10, 1.21.9, 1.21.8 +6 more30 KB700 downloadsbc7092f7d316…Get
  • 1.3.324 Mar 202626.1, 1.21.11, 1.21.10, 1.21.9, 1.21.8 +6 more20 KB96 downloadse316b34a2c97…Get

Frequently asked

Does Random Mob Sizes work on Minecraft 26.3?

Yes. 26.3 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 1.20.5 up to 26.3. 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?

The server only. Players join with an ordinary Minecraft client and install nothing.

What licence is Random Mob Sizes under?

MIT, 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?

Data packs install per world: put the downloaded file in that world's datapacks folder and run /reload, or add it when creating the world. No loader is involved. On a server, the world folder lives next to the server jar.

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.

TerralithExplore almost 100 new biomes consisting of both realism and light fantasy, using just Vanilla blocks. Complete with several immersive structures to compliment the overhauled terrain.TectonicTerrain shaping brought to new heights, grander and more varied than ever before!Towns and TowersSpice up your world with new villages, pillager outposts, and even new ships!TrekBored of vanilla structure generation? This pack is for you!GeophilicA subtle-ish overhaul of vanilla Overworld biomes! Reworked!Incendium LegacyA nether biome overhaul combined with challenging structures to conquer, unique weapons to obtain, and tricky mobs to defeat.

Details from Modrinth, where the author last updated it on 15 Sept 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? .