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Mekanism AdditionsMinecraft mod for 1.21.1

Additions module for Mekanism, contains things that don't quite fit in the other modules.

client and servernewest supported 1.21.1MobsDecoration
Latest version
10.7.19.85
Minecraft
1.15.1 to 1.21.1
Java
Java 21+
Loaders
NeoForge, Forge
Licence
MIT
Downloads
819.5k
Updated
5 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Mekanism Additions servers

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

  • 1.21.1
  • 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 Mekanism Additions declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge, Forge21+declared8 Aug 2024
1.21NeoForge, Forge21+declared13 Jun 2024
1.20.4Forge, NeoForge17+declared7 Dec 2023
1.20.1NeoForge, Forge17+declared12 Jun 2023
1.19.2NeoForge, Forge17+declared5 Aug 2022
1.19.1NeoForge, Forge17+declared27 Jul 2022
1.19Forge, NeoForge17+declared7 Jun 2022
1.18.2NeoForge, Forge17+declared28 Feb 2022
1.16.5NeoForge, Forge8+declared14 Jan 2021
1.16.4Forge, NeoForge8+declared29 Oct 2020
1.16.3NeoForge, Forge8+declared10 Sept 2020
1.16.1NeoForge, Forge8+declared24 Jun 2020
1.15.2NeoForge, Forge8+declared17 Jan 2020
1.15.1NeoForge, Forge8+declared16 Dec 2019

Download

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

All 30 releases
10.7.19.85release10 Apr 2026

MekanismAdditions-1.21.1-10.7.19.85.jar · 1.1 MB · for 1.21.1

Download latest
6bdd4b00d19f…
Older versions24
  • 10.7.18.8414 Feb 20261.21.11.1 MBa81146e78372…Get
  • 10.7.17.8321 Oct 20251.21.11.1 MB0839d84ccf1d…Get
  • 10.7.16.8221 Sept 20251.21.11.1 MBb8ba7eb1e037…Get
  • 10.7.15.8117 Aug 20251.21.11.1 MBd8621cd7429e…Get
  • 10.4.16.8021 May 20251.20.11.1 MB7f8bf953f11b…Get
  • 10.7.14.792 May 20251.21.11.1 MBe73548f448be…Get
  • 10.7.13.7821 Mar 20251.21.11.1 MB5914bf399f54…Get
  • 10.7.12.7713 Mar 20251.21.11.1 MB95a8a05413b8…Get
  • 10.7.11.7612 Mar 20251.21.11.1 MB21a067d5ed00…Get
  • 10.4.15.753 Mar 20251.20.11.1 MB45180332e1c4…Get
  • 10.7.10.7327 Feb 20251.21.11.1 MBac7f1ca9d710…Get
  • 10.7.9.7225 Feb 20251.21.11.1 MB224bb4d6f4c7…Get
  • 10.4.14.7125 Jan 20251.20.11.1 MBbc3b4980ebcc…Get
  • 10.7.8.7024 Dec 20241.21.11.1 MBcd5914eedff3…Get
  • 10.4.13.6924 Dec 20241.20.11.1 MB62c0bacc0c21…Get
  • 10.4.12.6820 Dec 20241.20.11.1 MB10d462c6541b…Get
  • 10.4.11.6712 Dec 20241.20.11.1 MB798b15affce1…Get
  • 10.4.10.6619 Nov 20241.20.11.1 MB882865d3f9ba…Get
  • 10.7.7.6431 Aug 20241.21.11.1 MBa3696ade7805…Get
  • 10.7.6.6331 Aug 20241.21.11.1 MB623d1ebf5ba2…Get
  • 10.7.5.6226 Aug 20241.21.11.1 MBcd883926f58d…Get
  • 10.4.9.6125 Aug 20241.20.11.1 MBe46e2052c865…Get
  • 10.7.4.6023 Aug 20241.21.11.1 MB5b77f87579f2…Get
  • 10.7.3.5923 Aug 20241.21.11.1 MB7fb626475083…Get

Frequently asked

Does Mekanism Additions work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Mekanism 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.

Which Minecraft versions does Mekanism Additions support?

Everything the author has declared, from 1.15.1 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Mekanism 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 Mekanism Additions need?

NeoForge, 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 Mekanism Additions?

On the newest Minecraft release 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 Mekanism Additions under?

MIT, 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 Mekanism 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 Mekanism 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.

BookshelfAn open source library for other mods!GeckoLibA 3D animation library for entities, blocks, items, armor, and more!Cloth Config API (Fabric/Forge/NeoForge)Config Screen API for MinecraftJourneyMapReal-time map used for mapping in-game or your browser as you explore.Architectury APIAn intermediary api aimed to ease developing multiplatform mods.Jade 🔍Shows information about what you are looking at. (Hwyla/WAILA fork for Minecraft 1.16+)

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? .