Menu

mod

MobStackerMinecraft mod for 26.3

Greatly increases performance by stacking mobs together reducing the physical number of entities in the world with a config for further customization. Includes a mob cap module.

server onlynewest supported release 26.3preview support: 26.4-snapshot-4UtilityMobsWorldgenOptimization
Latest version
1.26.10.2
Minecraft
1.20.1 to 26.4-snapshot-4
Java
Java 25+
Loaders
Fabric, NeoForge, Quilt, Forge
Licence
LGPL-3.0-only
Downloads
34.2k
Updated
8 d ago
Available on
Modrinth
Space NodeOur hosting

Host MobStacker servers

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

  • 26.4-snapshot-4
  • Fabric
  • NeoForge
  • Quilt
  • Forge
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

Every version MobStacker declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
26.4-snapshot-4Fabric, NeoForge, Quilt, Forge25+declared13 Oct 2026
26.3Forge, Quilt, NeoForge, Fabric25+declared15 Sept 2026
26.1.2Forge, Quilt, NeoForge, Fabric25+declared9 Apr 2026
1.21.5Forge, Quilt, NeoForge, Fabric21+declared25 Mar 2025
1.21.4Forge, Quilt, NeoForge, Fabric21+declared3 Dec 2024
1.21.4-pre1Forge, Quilt, NeoForge, Fabric21+declared20 Nov 2024
24w46aForge, Quilt, NeoForge, Fabric21+declared13 Nov 2024
24w45aNeoForge, Quilt, Forge, Fabric21+declared6 Nov 2024
24w44aFabric, Quilt, NeoForge, Forge21+declared30 Oct 2024
1.21.3Forge, Quilt, NeoForge, Fabric21+declared23 Oct 2024
1.21.2Forge, Quilt, NeoForge, Fabric21+declared22 Oct 2024
1.21.2-pre5Forge, Quilt, NeoForge, Fabric21+declared16 Oct 2024
1.21.2-pre4Forge, Quilt, NeoForge, Fabric21+declared15 Oct 2024
1.21.2-pre3Forge, Quilt, NeoForge, Fabric21+declared11 Oct 2024
1.21.2-pre2NeoForge, Quilt, Fabric, Forge21+declared10 Oct 2024
1.21.2-pre1NeoForge, Fabric, Forge, Quilt21+declared8 Oct 2024
24w40aFabric, Quilt, NeoForge, Forge21+declared2 Oct 2024
24w39aForge, Quilt, NeoForge, Fabric21+declared25 Sept 2024
24w38aForge, Quilt, NeoForge, Fabric21+declared18 Sept 2024
24w37aForge, Quilt, NeoForge, Fabric21+declared11 Sept 2024
24w36aForge, Quilt, NeoForge, Fabric21+declared4 Sept 2024
24w35aForge, Quilt, NeoForge, Fabric21+declared28 Aug 2024
24w34aForge, Quilt, NeoForge, Fabric21+declared21 Aug 2024
24w33aNeoForge, Quilt, Forge, Fabric21+declared15 Aug 2024
1.21.1Fabric, Quilt, NeoForge, Forge21+declared8 Aug 2024
1.21.1-rc1Forge, Quilt, NeoForge, Fabric21+declared7 Aug 2024
1.21Forge, Quilt, NeoForge, Fabric21+declared13 Jun 2024
1.20.4Forge, Quilt, NeoForge, Fabric17+declared7 Dec 2023
1.20.3Forge, Quilt, NeoForge, Fabric17+declared4 Dec 2023
1.20.2Forge, Quilt, NeoForge, Fabric17+declared20 Sept 2023
1.20.1NeoForge, Quilt, Fabric, Forge17+declared12 Jun 2023

Download

From MobStacker’s own host. Nothing is re-hosted here.

For Minecraft 26.3

Choose the loader you use before downloading.

No matching file appears among the releases shown here. Browse all releases.

Most recently published release

1.26.10.2release18 Oct 2026

mobstacker-fabric-1.21.1-1.26.10.2.jar · 0.5 MB · for 1.21.1 · Fabric, Quilt

Choose file on publisher ↗
66e39adff31e…
Older versions15

Dependencies

What MobStackerdeclares it needs, from the author’s own release metadata. A required one has to be installed alongside it or it will not load.

Fabric APIRequired. Lightweight and modular API providing common hooks and intercompatibility measures utilized by mods using the Fabric toolchain.

Frequently asked

Does MobStacker work on Minecraft 26.4-snapshot-4?

Yes. 26.4-snapshot-4 is the newest Minecraft version MobStacker 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 MobStacker support?

Everything the author has declared, from 1.20.1 up to 26.4-snapshot-4. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install MobStacker on the client or the server?

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

Which platform or loader does MobStacker support?

Fabric, NeoForge, Quilt, Forge. 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 MobStacker?

Among the supported Minecraft releases above, the highest recorded requirement is Java 25 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

What does MobStacker need to run?

It declares Fabric API as required, so that has to be installed alongside it or it will not load. Each one is linked in the dependencies section above.

What licence is MobStacker under?

LGPL-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 MobStacker?

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 MobStacker 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.

Physics ModWelcome to a more destructive Minecraft than you've ever seen before!AlmanacAlmanac is a library used by my mods with mostly loader independent shared code between multiple mods to avoid duplication of code.BiolithA biome placement mod focusing on configurability and consistent distribution of modded biomesDamage EngineDisplay damage information on the UIEsliumSimulates zero latency by predicting server actionsPets ModAdds completely client-sided pets to your game. Supports every vanilla mob, some custom ones, and will work on any server, including in singleplayer!

Details from Modrinth, where the author last updated it on 18 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? .