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CalamityMinecraft mod for 1.20.1

Calamity is an expansive overhaul project that introduces challenging new bosses, unique mechanics, and a rich layer of lore to the core experience.

client and servernewest supported release 1.20.1AdventureMobsEquipmentDecoration
Latest version
1.0.4
Minecraft
1.20.1
Java
Java 17+
Loader
Forge
Licence
CC-BY-NC-4.0
Downloads
1.5k
Updated
3 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Calamity servers

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

  • 1.20.1
  • 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 Calamity declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.20.1Forge17+declared12 Jun 2023

Download

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

Most recently published release

1.0.4release27 Jul 2026

calamity-1.0.4.jar · 244.5 MB · for 1.20.1 · Forge

Download this release
eeef4586d2bb…
Older versions4
  • 1.0.36 Apr 20261.20.1233.7 MB805 downloadsa497d5521b3c…Get
  • 1.0.211 Mar 20261.20.1234.1 MB208 downloads1bcc49de83d0…Get
  • 1.0.119 Feb 20261.20.1225.5 MB21 downloadsb970c9b2ea5c…Get
  • 1.0.08 Feb 20261.20.1225.2 MB28 downloads4326c43ab8c1…Get

Frequently asked

Does Calamity work on Minecraft 1.20.1?

Yes. 1.20.1 is the newest Minecraft version Calamity declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Do I need to install Calamity 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 platform or loader does Calamity support?

Forge. 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 Calamity?

Among the supported Minecraft releases above, the highest recorded requirement is Java 17 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

What licence is Calamity under?

CC-BY-NC-4.0, 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 Calamity?

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 Calamity 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.

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.Enchantment DescriptionsAdds in-game descriptions for enchantments to tooltips.

Details from Modrinth, where the author last updated it on 27 Jul 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? .