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BlocksistencyMinecraft mod for 1.21.11

A vanilla-friendly mod that completes Minecraft's block sets by adding missing, logical variants for builders

client and servernewest supported release 1.21.11UtilityGame MechanicsDecoration
Latest version
0.4.0
Loader
Fabric
Licence
MIT
Downloads
840
Updated
7 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Blocksistency servers

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

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

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.11Fabric21+declared9 Dec 2025
1.21.10Fabric21+declared7 Oct 2025
1.21.9Fabric21+declared30 Sept 2025
1.21.8Fabric21+declared17 Jul 2025

Download

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

Most recently published release

0.4.0release2 Apr 2026

blocksistency-0.4.0.jar · 2.1 MB · for 1.21.11, 1.21.10 · Fabric

Download this release
d62186c9d416…
Older versions9
  • 0.3.126 Mar 20261.21.11, 1.21.101.9 MB39 downloadse27e11a5d874…Get
  • 0.3.026 Mar 20261.21.11, 1.21.101.9 MB16 downloads448364aad7ce…Get
  • 0.2.325 Mar 20261.21.11, 1.21.101.4 MB20 downloadsccd89a4e0360…Get
  • 0.2.223 Mar 20261.21.11, 1.21.101.4 MB20 downloads0a6e880a4fd8…Get
  • 0.2.123 Mar 20261.21.11, 1.21.101.4 MB17 downloadscfa81d36f808…Get
  • 0.2.022 Mar 20261.21.11, 1.21.101.4 MB20 downloadsbe790bfddfe8…Get
  • 0.1.220 Jan 20261.21.11, 1.21.10, 1.21.9, 1.21.80.2 MB418 downloads22fd252836b9…Get
  • 0.1.119 Jan 20261.21.11, 1.21.10, 1.21.9, 1.21.80.2 MB30 downloadsf7be2fa6f3f3…Get
  • 0.1.029 Dec 20251.21.11, 1.21.10, 1.21.9, 1.21.80.2 MB113 downloadsa0e4dc0b1b89…Get

Frequently asked

Does Blocksistency work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version Blocksistency 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 Blocksistency support?

Everything the author has declared, from 1.21.8 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 Blocksistency 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 Blocksistency support?

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 Blocksistency?

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 Blocksistency 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 Blocksistency?

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 Blocksistency 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.

Details from Modrinth, where the author last updated it on 2 Apr 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? .