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Block BlockerMinecraft mod for 1.21.11

Event Prevention for Blocks

server onlynewest supported 1.21.11Utility
Latest version
1.13.0
Minecraft
1.7.10 to 1.21.11
Java
Java 21+
Loaders
NeoForge, Forge, Fabric
Licence
MIT
Downloads
9.8k
Updated
4 mo ago
Available on
Modrinth
Space NodePartner

Host Block Blocker servers

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

  • 1.21.11
  • 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 Block Blocker declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.11NeoForge, Forge, Fabric21+declared9 Dec 2025
1.21.4Fabric, NeoForge, Forge21+declared3 Dec 2024
1.21.1Forge, NeoForge, Fabric21+declared8 Aug 2024
1.20.4NeoForge, Forge, Fabric17+declared7 Dec 2023
1.20.2NeoForge, Forge, Fabric17+declared20 Sept 2023
1.20.1Fabric, NeoForge, Forge17+declared12 Jun 2023
1.19.4NeoForge, Fabric, Forge17+declared14 Mar 2023
1.19.3Forge, Fabric, NeoForge17+declared7 Dec 2022
1.19.2NeoForge, Forge, Fabric17+declared5 Aug 2022
1.18.2Fabric, NeoForge, Forge17+declared28 Feb 2022
1.16.5Forge, NeoForge, Fabric8+declared14 Jan 2021
1.14.4Forge, NeoForge, Fabric8+declared19 Jul 2019
1.12.2Forge, NeoForge, Fabric8+declared18 Sept 2017
1.11.2Forge, NeoForge, Fabric8+declared21 Dec 2016
1.7.10Forge, NeoForge, Fabric8+declared14 May 2014

Download

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

1.13.0release19 Mar 2026

BlockBlocker-neoforge-1.21.11-1.13.0.jar · 0.0 MB · for 1.21.11

Download latest
458670b46326…
Older versions14
  • 1.12.019 Mar 20261.21.110.0 MB69 downloads4bfe439c2462…Get
  • 1.11.028 Apr 20251.21.40.0 MB412 downloadsda7b95bc7f25…Get
  • 1.10.02 Nov 20241.21.10.0 MB156 downloadsfd8bef973680…Get
  • 1.9.023 Feb 20241.20.40.0 MB146 downloadsca2007fa9dbe…Get
  • 1.8.210 Dec 20231.20.10.0 MB2.4k downloads52295ca6c3bd…Get
  • 1.8.110 Dec 20231.20.10.0 MB134 downloadsbff173e1ca25…Get
  • 1.8.05 Jul 20231.20.10.0 MB153 downloadsb0ef0d6c47dc…Get
  • 1.7.030 Apr 20231.19.40.0 MB158 downloads3961fd29bcf6…Get
  • 1.6.030 Apr 20231.19.30.0 MB106 downloadsbbabc6f86f61…Get
  • 1.5.030 Apr 20231.19.20.0 MB119 downloads7d3afc22330f…Get
  • 1.4.030 Apr 20231.18.20.0 MB143 downloads5db9b342b899…Get
  • 1.3.126 May 20221.18.20.0 MB453 downloadsfb51a14afb39…Get
  • 1.1.226 May 20221.11.20.0 MB149 downloadsed36193a9b44…Get
  • 1.4.226 May 20221.7.100.0 MB284 downloadsb5514c930d4c…Get

Frequently asked

Does Block Blocker work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version Block Blocker 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 Block Blocker support?

Everything the author has declared, from 1.7.10 up to 1.21.11. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Block Blocker on the client or the server?

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

Which loader does Block Blocker need?

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

Which Java version do I need for Block Blocker?

Java 21 or newer, because that is what the newest Minecraft release it supports requires. The requirement comes from the game rather than from the mod itself.

What licence is Block Blocker 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 Block Blocker?

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 Block Blocker safely?

From the author's own page on Modrinth, which is where the data here is synced from. MCReference never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.

Works on the same versions

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

Entity CullingUsing async path-tracing to hide Block-/Entities that are not visibleFerriteCoreMemory usage optimizationsImmediatelyFastSpeed up immediate mode rendering in MinecraftYetAnotherConfigLib (YACL)A builder-based configuration library for Minecraft!Xaero's MinimapDisplays a map of the nearby world terrain, players, mobs, entities in the corner of your screen. Lets you create waypoints which help you find the locations you've marked.[ETF] Entity Texture FeaturesEmissive, Random & Custom texture support for entities in resourcepacks just like Optifine but for Fabric

Last checked 6 d ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .