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IronRustMinecraft mod for 1.21.11

Fully implements iron rust throught the oxidation feature, also affected by nearby water

client and servernewest supported 1.21.11Game MechanicsDecoration
Latest version
1.0.4-f
Minecraft
1.21.9 to 1.21.11
Java
Java 21+
Loaders
NeoForge, Fabric, Forge
Licence
MIT
Downloads
1.0k
Updated
8 mo ago
Available on
Modrinth
Space NodePartner

Host IronRust servers

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

  • 1.21.11
  • NeoForge
  • Fabric
  • Forge
  • 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 IronRust declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.11NeoForge, Fabric, Forge21+declared9 Dec 2025
1.21.10Forge, Fabric, NeoForge21+declared7 Oct 2025
1.21.9Fabric, NeoForge, Forge21+declared30 Sept 2025

Download

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

1.0.4-frelease15 Dec 2025

ironrust-fabric-1.0.4F-1.21.11.jar · 0.2 MB · for 1.21.11

Download latest
0fda7795c75b…
Older versions4
  • 1.0.3-b17 Nov 20251.21.9, 1.21.100.2 MB34 downloads68094e549fde…Get
  • 1.0.3-f17 Nov 20251.21.9, 1.21.100.2 MB196 downloadsc81b1e77f9c5…Get
  • 1.0.2-b14 Nov 20251.21.9, 1.21.100.2 MB76 downloads5a68b3db9ee7…Get
  • 1.0.1-b12 Nov 20251.21.9, 1.21.100.2 MB46 downloads07c28329e3de…Get

Frequently asked

Does IronRust work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version IronRust 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 IronRust support?

Everything the author has declared, from 1.21.9 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 IronRust 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 IronRust need?

NeoForge, Fabric, 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 IronRust?

Java 21 or newer, because that is what the newest Minecraft release it supports requires. The requirement comes from the game rather than from the mod itself.

What licence is IronRust 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 IronRust?

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 IronRust 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.

Entity CullingUsing async path-tracing to hide Block-/Entities that are not visibleFerriteCoreMemory usage optimizationsImmediatelyFastSpeed up immediate mode rendering in MinecraftYetAnotherConfigLib (YACL)A builder-based configuration library for Minecraft!Xaero's MinimapDisplays a map of the nearby world terrain, players, mobs, entities in the corner of your screen. Lets you create waypoints which help you find the locations you've marked.[ETF] Entity Texture FeaturesEmissive, Random & Custom texture support for entities in resourcepacks just like Optifine but for Fabric

Last checked 6 d 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? .