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GT--Minecraft mod for 1.21

Add some machine and some process line to GTCEu Modern.

client and servernewest supported 1.21Technology
Latest version
1.3.9
Minecraft
1.20.1 to 1.21
Java
Java 21+
Loaders
NeoForge, Forge
Licence
AGPL-3.0-or-later
Downloads
15.6k
Updated
22 d ago
Available on
Modrinth
Space NodeOur hosting

Host GT-- servers

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

  • 1.21
  • NeoForge
  • Forge
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

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

Other mods
MinecraftThroughJavaEvidenceReleased
1.21NeoForge, Forge21+declared13 Jun 2024
1.20.6NeoForge, Forge21+declared29 Apr 2024
1.20.5Forge, NeoForge21+declared23 Apr 2024
1.20.4NeoForge, Forge17+declared7 Dec 2023
1.20.3NeoForge, Forge17+declared4 Dec 2023
1.20.2NeoForge, Forge17+declared20 Sept 2023
1.20.1Forge, NeoForge17+declared12 Jun 2023

Download

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

All 48 releases
1.3.9release24 Jun 2026

gtnn-1.20.1-1.3.9.jar · 8.3 MB · for 1.20.1

Download latest
3f7eeaac3e4e…
Older versions24
  • 1.3.828 Feb 20261.20.18.3 MB1.5k downloadsb0852e4260aa…Get
  • 1.3.726 Feb 20261.20.18.3 MB65 downloads7d3bf11878b4…Get
  • 1.3.629 Jan 20261.20.18.3 MB590 downloadsac0295a31edc…Get
  • 1.3.525 Sept 20251.20.18.3 MB1.2k downloads58b5d907ce39…Get
  • 1.3.423 Aug 20251.20.18.3 MB725 downloadsd3c7d95477d4…Get
  • 1.3.322 Aug 20251.20.18.3 MB67 downloads4b8a853bf7d1…Get
  • 1.3.25 Aug 20251.20.18.3 MB287 downloads8df97f0d7a3f…Get
  • 1.3.127 Jul 20251.20.18.3 MB155 downloadsa7ce8b738994…Get
  • 1.3.013 Jul 20251.20.18.3 MB47 downloads8944316d4912…Get
  • 1.2.18 Jul 20251.20.18.3 MB132 downloadsa647f4847a76…Get
  • 1.2.05 Jul 20251.20.18.3 MB131 downloadse8b6da91a014…Get
  • 1.1.1425 May 20251.20.17.0 MB774 downloadsd3e85936ae95…Get
  • 1.1.1314 May 20251.20.17.0 MB783 downloadsb85e9b50e704…Get
  • 1.1.1224 Apr 20251.20.17.0 MB420 downloads165542134d17…Get
  • 1.1.1120 Mar 20251.20.17.0 MB298 downloadsb91651db9fcc…Get
  • 1.1.1013 Mar 20251.20.17.0 MB136 downloads9b76620899dd…Get
  • 1.1.911 Mar 20251.20.17.0 MB80 downloadse3e03464c349…Get
  • 1.1.815 Jan 20251.20.17.0 MB1.1k downloadsc4afe2eae805…Get
  • 1.1.722 Dec 20241.20.17.0 MB378 downloadsaaa3081e7392…Get
  • 1.1.628 Nov 20241.20.17.6 MB320 downloads72cc6dea6f01…Get
  • 1.1.5b16 Nov 20241.20.17.6 MB147 downloadsdfddfede6027…Get
  • 1.1.5a15 Nov 20241.20.17.6 MB81 downloadscc6d51c607d3…Get
  • 1.1.513 Nov 20241.20.17.6 MB110 downloads465eefbf2d3c…Get
  • 1.1.419 Oct 20241.20.17.6 MB257 downloads82703f37760d…Get

Frequently asked

Does GT-- work on Minecraft 1.21?

Yes. 1.21 is the newest Minecraft version GT-- 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 GT-- support?

Everything the author has declared, from 1.20.1 up to 1.21. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install GT-- 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 GT-- support?

NeoForge, Forge. 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 GT--?

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 GT-- under?

AGPL-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--?

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-- 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.

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Details from Modrinth, where the author last updated it on 7 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? .