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GT Community AdditionsMinecraft mod for 1.20.1

GregTech Modern Add-on New multiblocks, materials, etc

client and servernewest supported 1.20.1TechnologyUtilityOptimizationManagement
Latest version
2.1.0-beta
Minecraft
1.20.1
Loader
Forge
Licence
LGPL-3.0-or-later
Downloads
6.0k
Updated
8 mo ago
Available on
Modrinth
Space NodePartner

Host GT Community Additions servers

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

  • 1.20.1
  • Forge
  • 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 GT Community Additions declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.20.1Forge17+declared12 Jun 2023

Download

From GT Community Additions’s own host. Nothing is re-hosted here.

2.1.0-betarelease9 Dec 2025

gtca-1.20.1-2.1.0-beta.jar · 1.8 MB · for 1.20.1

Download latest
e7d41c1db170
Older versions13
  • 2.0.17 Aug 20251.20.11.4 MB1.3k downloads26f6fd3376a6Get
  • 2.0.06 Aug 20251.20.11.4 MB130 downloadsfe4be4d5b308Get
  • 1.3-hotfix29 May 20251.20.11.5 MB725 downloadse46f55447ef4Get
  • 1.3-hotfix27 Apr 20251.20.11.5 MB294 downloadse75c289ce2bbGet
  • 1.324 Apr 20251.20.11.5 MB120 downloadsb6121046bf95Get
  • 1.2.231 Mar 20251.20.10.4 MB156 downloadsad6396322e25Get
  • 1.2.14 Feb 20251.20.10.4 MB445 downloads177984f09b0fGet
  • 1.2.014 Jan 20251.20.10.4 MB147 downloads6ff2fd125e04Get
  • 1.1.0b-hotfix125 Sept 20241.20.10.4 MB429 downloads5e4ecae2610fGet
  • 1.1.0b25 Sept 20241.20.10.4 MB75 downloads52042fef8e66Get
  • 1.0.2a17 Sept 20241.20.10.2 MB85 downloads6f5b52d9ddf2Get
  • 1.0.1a16 Sept 20241.20.10.2 MB73 downloads85c168d6f57bGet
  • 1.0.0a13 Sept 20241.20.10.1 MB74 downloadsadc6af1a9bedGet

Frequently asked

Does GT Community Additions work on Minecraft 1.20.1?

Yes. 1.20.1 is the newest Minecraft version GT Community Additions declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Do I need to install GT Community Additions 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 loader does GT Community Additions need?

Forge. 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 GT Community Additions?

Java 17 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 GT Community Additions under?

LGPL-3.0-or-later, 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 GT Community Additions?

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 GT Community Additions 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.

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? .