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PeriodityMinecraft mod for 1.21.11

A fabric mod that adds somewhat scientifically accurate elements and alloys to Minecraft

client and servernewest supported release 1.21.11TechnologyDecoration
Latest version
1.1.3-Fluorine
Loader
Fabric
Licence
LGPL-3.0-only
Downloads
455
Updated
3 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Periodity servers

One click and Periodity 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 Periodity declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.11Fabric21+declared9 Dec 2025
1.20.1Fabric17+declared12 Jun 2023

Download

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

Most recently published release

1.1.3-Fluorinerelease23 Aug 2026

periodity-1.1.3-Fluorine.jar · 0.1 MB · for 1.21.11 · Fabric

Download this release
b0ca78dc71ee…
Older versions9
  • 1.1.2-Oxygen12 Aug 20261.21.110.1 MB85d97dcf9d71…Get
  • 1.1.1-Nitrogen8 Aug 20261.21.110.1 MB3523744729f8…Get
  • 1.1.0-Carbon27 Jul 20261.21.110.1 MB9 downloads4ff74f4d0e72…Get
  • 1.0.4-Boron18 Jun 20261.21.1178 KB12 downloadsa689da25c399…Get
  • 1.0.3-Beryllium1 Jan 20261.21.1166 KB62 downloads8d2b043e4e2b…Get
  • 1.0.2-Lithium1 Jan 20261.21.1165 KB20 downloads8c5e618708b5…Get
  • 1.0.1-Helium1 Jan 20261.21.1165 KB14 downloads1d95857c492f…Get
  • 1.0.0-Hydrogen1 Jan 20261.21.1163 KB16 downloads2d6a0688c239…Get
  • ALPHA-0.1-1.20.127 Nov 20241.20.10.2 MB246 downloads76ee8ec976a6…Get

Dependencies

What Perioditydeclares it needs, from the author’s own release metadata. A required one has to be installed alongside it or it will not load.

Frequently asked

Does Periodity work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version Periodity 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 Periodity 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 Periodity 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 Periodity 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 Periodity?

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 does Periodity need to run?

It declares Fabric API as required, so that has to be installed alongside it or it will not load. Each one is linked in the dependencies section above.

What licence is Periodity 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 Periodity?

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 Periodity 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 23 Aug 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? .