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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 1.21.1AdventureChallenging
Latest version
2.0.0
Loaders
Forge, NeoForge
Licence
LicenseRef-All-Rights-Reserved
Downloads
17.1k
Updated
4 mo ago
Available on
Modrinth
Space NodePartner

Host Iron Frost servers

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

  • 1.21.1
  • Forge
  • NeoForge
  • One click modpack install
  • Dependencies handled
  • Tuned startup flags
  • 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 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.

2.0.0release13 May 2026

Iron Frost 2.0.0.mrpack · 73.3 MB · for 1.21.1

Download latest
0e823cb7c04c
Older versions5
  • 1.0.528 Sept 20251.20.179.5 MB5.5k downloads517e37fe89a7Get
  • 1.0.426 Jan 20251.20.179.3 MB4.3k downloads645c955ddd8eGet
  • 1.0.32 Dec 20241.20.178.8 MB3.9k downloads416033e18d98Get
  • 1.0.217 Nov 20241.20.187.0 MB814 downloads9327144a4276Get
  • 1.0.013 Nov 20241.20.187.4 MB159 downloads1b44156ed90aGet

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, so it works on any server you can already join.

Which loader does Iron Frost need?

Forge, NeoForge. 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 Iron Frost?

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 modpack itself.

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?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the modpack 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 Iron Frost 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.

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? .