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modpack

Iron FrostMinecraft modpack for 1.21.1

Build a city and survive in a steampunk frozen world | Create, Minecolonies, TerraSnow

client onlynewest supported release 1.21.1AdventureChallenging
Latest version
2.0.0
Minecraft
1.20.1 to 1.21.1
Java
Java 21+
Loaders
Forge, NeoForge
Licence
LicenseRef-All-Rights-Reserved
Downloads
17.1k
Updated
6 mo ago
Available on
Modrinth

Screenshots

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

Minecraft versions

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

Other modpacks
MinecraftThroughJavaEvidenceReleased
1.21.1Forge, NeoForge21+declared8 Aug 2024
1.20.1Forge, NeoForge17+declared12 Jun 2023

Download

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

Most recently published release

2.0.0release13 May 2026

Iron Frost 2.0.0.mrpack · 73.3 MB · for 1.21.1 · NeoForge

Download this release
0e823cb7c04c…
Older versions5
  • 1.0.528 Sept 20251.20.179.5 MB5.5k downloads517e37fe89a7…Get
  • 1.0.426 Jan 20251.20.179.3 MB4.3k downloads645c955ddd8e…Get
  • 1.0.32 Dec 20241.20.178.8 MB3.9k downloads416033e18d98…Get
  • 1.0.217 Nov 20241.20.187.0 MB814 downloads9327144a4276…Get
  • 1.0.013 Nov 20241.20.187.4 MB159 downloads1b44156ed90a…Get

Frequently asked

Does Iron Frost work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Iron Frost 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 Iron Frost support?

Everything the author has declared, from 1.20.1 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 Iron Frost on the client or the server?

The client only. There is nothing to install on the server side. That is the author's declared design, not a guarantee for every server: one running anti-cheat or missing a counterpart mod can still object.

Which platform or loader does Iron Frost 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 Iron Frost?

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 licence is Iron Frost under?

LicenseRef-All-Rights-Reserved, 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 Iron Frost?

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 Iron Frost 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.

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Details from Modrinth, where the author last updated it on 13 May 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? .