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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
10.3k
Updated
19 d ago
Available on
Modrinth
Space NodeOur hosting

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 · 13 KB · for 1.21.11

Download latest
458670b46326…
Older versions14
  • 1.12.019 Mar 20261.21.1116 KB69 downloads4bfe439c2462…Get
  • 1.11.028 Apr 20251.21.416 KB412 downloadsda7b95bc7f25…Get
  • 1.10.02 Nov 20241.21.116 KB156 downloadsfd8bef973680…Get
  • 1.9.023 Feb 20241.20.416 KB146 downloadsca2007fa9dbe…Get
  • 1.8.210 Dec 20231.20.113 KB2.4k downloads52295ca6c3bd…Get
  • 1.8.110 Dec 20231.20.116 KB134 downloadsbff173e1ca25…Get
  • 1.8.05 Jul 20231.20.117 KB153 downloadsb0ef0d6c47dc…Get
  • 1.7.030 Apr 20231.19.412 KB158 downloads3961fd29bcf6…Get
  • 1.6.030 Apr 20231.19.312 KB106 downloadsbbabc6f86f61…Get
  • 1.5.030 Apr 20231.19.212 KB119 downloads7d3afc22330f…Get
  • 1.4.030 Apr 20231.18.212 KB143 downloads5db9b342b899…Get
  • 1.3.126 May 20221.18.216 KB453 downloadsfb51a14afb39…Get
  • 1.1.226 May 20221.11.27 KB149 downloadsed36193a9b44…Get
  • 1.4.226 May 20221.7.1011 KB284 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 platform or loader does Block Blocker 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 Block Blocker?

On the newest Minecraft version it supports, Java 21 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.

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?

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

Works on the same versions

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

Armor HiderHide or adjust the transparency of armor, glint, and offhand items - with full multiplayer sync. No dependencies required.GeckoLibA 3D animation library for entities, blocks, items, armor, and more!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.Jade 🔍Shows information about what you are looking at. (Hwyla/WAILA fork for Minecraft 1.16+)

Details from Modrinth, where the author last updated it on 9 Sept 2026. 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? .