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mod

SubstrateMinecraft mod for 1.21.11

Optimization of the bottom and/or top layer(s) of the world

client onlynewest supported 1.21.11Optimization
Latest version
4.2
Loaders
Quilt, NeoForge, Fabric
Licence
LGPL-3.0-only
Downloads
187.4k
Updated
7 mo ago
Available on
Modrinth

Minecraft versions

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

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.11Quilt, NeoForge, Fabric21+declared9 Dec 2025
1.21.10Fabric, Quilt, NeoForge21+declared7 Oct 2025
1.21.9NeoForge, Quilt, Fabric21+declared30 Sept 2025
1.21.8Fabric, Quilt, NeoForge21+declared17 Jul 2025
1.21.7Quilt, NeoForge, Fabric21+declared30 Jun 2025
1.21.6Fabric, Quilt, NeoForge21+declared17 Jun 2025
1.21.5NeoForge, Quilt, Fabric21+declared25 Mar 2025
1.21.4NeoForge, Quilt, Fabric21+declared3 Dec 2024
1.21.3NeoForge, Fabric, Quilt21+declared23 Oct 2024
1.21.2Quilt, NeoForge, Fabric21+declared22 Oct 2024
1.21.1Fabric, Quilt, NeoForge21+declared8 Aug 2024
1.20.6NeoForge, Quilt, Fabric21+declared29 Apr 2024
1.20.5NeoForge, Quilt, Fabric21+declared23 Apr 2024
1.20.4NeoForge, Quilt, Fabric17+declared7 Dec 2023
1.20.3NeoForge, Quilt, Fabric17+declared4 Dec 2023
1.20.2NeoForge, Quilt, Fabric17+declared20 Sept 2023
1.20.1NeoForge, Quilt, Fabric17+declared12 Jun 2023

Download

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

All 34 releases
4.2release12 Feb 2026

substrate-4.2+1.21.11-neoforge.jar · 0.1 MB · for 1.21.11

Download latest
41dd130454b8
Older versions24
  • 4.114 Jan 20261.21.110.1 MB628 downloadsb1caa59d65cfGet
  • 4.1-Beta.419 Dec 20251.21.110.1 MB2.5k downloads5aaacb2c44edGet
  • 4.1-Beta.319 Dec 20251.21.110.1 MB6.8k downloadsf0f7b141e84dGet
  • 4.1-Beta.25 Nov 20251.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5 +3 more0.0 MB474 downloads60c18a8167abGet
  • 4.1-Beta.15 Nov 20251.21.9, 1.21.100.1 MB275 downloads6a089c1b4317Get
  • 4.0-hf11 Oct 20251.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5 +1 more0.4 MB3.1k downloadsde8c273cea0cGet
  • 4.011 Oct 20251.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5 +1 more0.4 MB597 downloads7cbd07a79018Get
  • 4.0.15 Oct 20251.21.9, 1.21.100.4 MB14.7k downloadsb0926f61f31bGet
  • 3.530 Sept 20251.21.90.4 MB146 downloadsbb50e986498aGet
  • 3.4.2-Special-Embeddium-Build11 Sept 20251.21.1, 1.21.40.0 MB280 downloads0d4c7987e953Get
  • 3.4.2-NeoForge1.21.x7 Sept 20251.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5 +3 more0.0 MB871 downloads068e7f3b3262Get
  • 3.4.2-NeoForge1.20.67 Sept 20251.20.60.0 MB49 downloadscd72133e5aa9Get
  • 3.4.2-NeoForge1.20.47 Sept 20251.20.4, 1.20.50.0 MB71 downloads5032763b588cGet
  • 3.4.1-NeoForge1.21.x7 Sept 20251.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5 +3 more0.0 MB43 downloads1ce2f5db7a48Get
  • 3.4.1-NeoForge1.20.67 Sept 20251.20.60.0 MB25 downloads2b9051b9722bGet
  • 3.4.1-NeoForge1.20.47 Sept 20251.20.4, 1.20.50.0 MB26 downloads057e357f7887Get
  • 3.4-NeoForge1.21.x29 Aug 20251.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5 +3 more0.0 MB555 downloadsfc4994ab1cb8Get
  • 3.4-Fabric1.21.x29 Aug 20251.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5 +3 more0.4 MB3.9k downloadsdaba4091637cGet
  • 3.4-NeoForge1.20.629 Aug 20251.20.60.0 MB24 downloads1e51163d13b5Get
  • 3.4-NeoForge1.20.429 Aug 20251.20.4, 1.20.50.0 MB28 downloadsbfbf8323e307Get
  • 3.4-Fabric1.20.x29 Aug 20251.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5 +1 more0.4 MB526 downloads71e2d1998f74Get
  • 3.3-NeoForge1.20.48 Aug 20251.20.4, 1.20.50.0 MB57 downloadsa5a7d26d4056Get
  • 3.3-NeoForge1.21.x8 Aug 20251.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5 +3 more0.0 MB1.0k downloads6ae96c1524d8Get
  • 3.3-Fabric1.21.x8 Aug 20251.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5 +3 more0.4 MB5.9k downloads438454112a72Get

Frequently asked

Does Substrate work on Minecraft 1.21.11?

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

Everything the author has declared, from 1.20.1 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 Substrate on the client or the server?

The client only. There is nothing to install on the server side. That is the author's declared design, not a guarantee for every server: one running anti-cheat or missing a counterpart mod can still object.

Which platform or loader does Substrate support?

Quilt, NeoForge, 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 Substrate?

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 Substrate 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 Substrate?

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 Substrate 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.

Last checked 2 mo 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? .