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modpack

GregnauticsMinecraft modpack for 1.21.1

Gregnautics is a realistic hardcore tech-survival modpack built around TerraFirmaCraft/TFC, Create, Gregtech/GTCEu and Create Aeronautics inspired by TerraFirmaGreg/TFG

newest supported release 1.21.1HardcoreTech
Latest version
Gregnautics-0.5.10.zip
Minecraft
1.21.1
Java
Java 21+
Loader
NeoForge
Licence
not stated
Downloads
16.3k
Updated
2 d ago
Available on
CurseForge
Space NodeOur hosting

Host Gregnautics servers

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

  • 1.21.1
  • NeoForge
  • One click modpack install
  • Dependencies handled
  • Tuned startup flags
  • 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 Gregnautics declares support for, newest first, with the Java runtime that version needs.

Other modpacks
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge21+declared8 Aug 2024

Download

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

Browse 34 indexed releases

Most recently published release

Gregnautics-0.5.10.ziprelease26 Oct 2026

Gregnautics-0.5.10.zip · 36.1 MB · for 1.21.1 · NeoForge

Download this release
bd5a466a54f8…
Older versions24
  • Gregnautics-0.5.9-hotfix1.zip22 Oct 20261.21.135.4 MB583e4e4211e3…Get
  • Gregnautics-0.5.9-hotfix.zip22 Oct 20261.21.135.4 MB65986c180a28…Get
  • Gregnautics-0.5.9.zip21 Oct 20261.21.135.4 MB76c27d8f91c7…Get
  • Gregnautics-0.5.8-hotfix-2.zip8 Oct 20261.21.135.2 MB776adf919260…Get
  • Gregnautics-0.5.8-hotfix.zip7 Oct 20261.21.135.2 MB94cbf07f4707…Get
  • Gregnautics-0.5.8.zip6 Oct 20261.21.135.2 MB2c0a4ca89367…Get
  • Gregnautics-0.5.7.zip4 Oct 20261.21.131.7 MB47389d024786…Get
  • Gregnautics-0.5.6.zip1 Oct 20261.21.131.6 MB605239fa08c7…Get
  • Gregnautics-0.5.5.zip29 Sept 20261.21.131.6 MB61e55183a905…Get
  • Gregnautics-0.5.4.zip25 Sept 20261.21.131.5 MB4c1032a9984a…Get
  • Gregnautics-0.5.3.zip23 Sept 20261.21.131.5 MBb2f520e11aaf…Get
  • Gregnautics-0.5.2.zip20 Sept 20261.21.131.2 MBbe6f43c1586f…Get
  • Gregnautics-0.5.1.zip17 Sept 20261.21.140.5 MBcfee64488cce…Get
  • Gregnautics-0.5.0-hotfix.zip11 Sept 20261.21.131.1 MB5fa312262f27…Get
  • Gregnautics-0.5.0.zip10 Sept 20261.21.131.0 MB702520a7e549…Get
  • Gregnautics-0.4.7.zip4 Sept 20261.21.131.0 MB118cecd23bf6…Get
  • Gregnautics-0.4.6.zip30 Aug 20261.21.130.7 MB7e929185c49e…Get
  • Gregnautics-0.4.5.zip27 Aug 20261.21.130.5 MBd095de8b564a…Get
  • Gregnautics-0.4.4-hotfix.zip23 Aug 20261.21.157.8 MBc9d5d7681c1a…Get
  • Gregnautics-0.4.4.zip23 Aug 20261.21.157.8 MB3a00a45b28fb…Get
  • Gregnautics-0.4.3.zip22 Aug 20261.21.157.9 MB0f5042d85525…Get
  • Gregnautics-0.4.2.zip18 Aug 20261.21.129.5 MBd24fdf1662b9…Get
  • Gregnautics-0.4.1.zip17 Aug 20261.21.129.5 MB0a3c23c5cc00…Get
  • Gregnautics-0.4.0.zip14 Aug 20261.21.129.4 MB572bea63df34…Get

Frequently asked

Does Gregnautics work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Gregnautics 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 platform or loader does Gregnautics support?

NeoForge. 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 Gregnautics?

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.

How do I install Gregnautics?

Use a launcher that imports packs, such as Prism Launcher, the Modrinth App or the CurseForge app, and open the pack file with it. The launcher installs the right loader and mods for you; installing a pack's mods by hand is the error-prone way.

Where do I download Gregnautics safely?

Start with the author's page on CurseForge, 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.

Re-ConsoleA continued Legacy Console Edition experience, expanded upon with modern Java Edition content and QoL! (An Official Legacy4J Project)MAX FPS: Optimized🚀 MAX FPS WITHOUT UNNECESSARY MODS! Only 16 optimization mods - NOTHING EXTRA! ✅ ALL MAJOR VERSIONS ⚡ INSTALLS ON ANY LAUNCHER! (Guide below)Simply Optimized ReloadedAn unofficial port of Simply Optimized built to support every major mod loader and stay current with the newest versions of Minecraft.PacktrixPre-packed Official Modpack containing Patrix Resource Pack for easy install using Fabric/Quilt.FPS+ PvP Boost | Ultimate FPS & Combat Client [ Every Version ]Ultra-lightweight FPS boost & PvP modpack for Fabric. Boost FPS on low-end PCs with Sodium optimizations, lower input lag, cleaner visuals, and combat HUD tweaks built for Hypixel Bedwars, Duels, PotPvP & CPVP. Maximize frames and dominate fights.香草精华 Vanilla EssenceFaithful to the origional. Better vanilla experience without any new blocks or mobs

Details from CurseForge, where the author last updated it on 5 Nov 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? .