Menu

mod

OnyxiumMinecraft mod for 1.21.4

Onyxium adds a powerful new material to Minecraft with sets effects and cool additions.

newest supported release 1.21.4World Ores Resources
Latest version
onyxium-neoforge-2.0.3.jar
Minecraft
1.20.1 to 1.21.4
Java
Java 21+
Loaders
Forge, NeoForge
Licence
not stated
Downloads
669
Updated
3 mo ago
Available on
CurseForge

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

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

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.4Forge, NeoForge21+declared3 Dec 2024
1.21.1NeoForge, Forge21+declared8 Aug 2024
1.21Forge, NeoForge21+declared13 Jun 2024
1.20.1NeoForge, Forge17+declared12 Jun 2023

Download

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

For Minecraft 1.21.4

Choose the loader you use before downloading.

  • Forge, NeoForge

    onyxium-1.21.4-2.0.3.jar · 18 Jul 2026

    Multiple loaders are listed; verify the file before downloading.

    Choose file on publisher ↗

Most recently published release

onyxium-neoforge-2.0.3.jarrelease21 Aug 2026

onyxium-neoforge-2.0.3.jar.jar · 0.1 MB · for 1.21.1 · NeoForge

Download this release
e92cfab4498b…
Older versions17

Frequently asked

Does Onyxium work on Minecraft 1.21.4?

Yes. 1.21.4 is the newest Minecraft version Onyxium 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 Onyxium support?

Everything the author has declared, from 1.20.1 up to 1.21.4. The full list is in the table above, with the Java runtime each version needs next to it.

Which platform or loader does Onyxium support?

Forge, 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 Onyxium?

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 Onyxium?

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 Onyxium 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.

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+)Collective🎓 Collective is a shared library with common code for all of Serilum's mods.

Details from CurseForge, where the author last updated it on 21 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? .