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modpack

Cobblemon Altered RealmsMinecraft modpack for 1.21.1

Cobblemon: Altered Realms expands the Cobblemon experience with Fakémon and beyond, bringing new creatures, worlds, and adventures to discover.

client and servernewest supported release 1.21.1TechnologyAdventureChallengingMultiplayer
Latest version
2.0
Minecraft
1.21.1
Loader
NeoForge
Licence
MIT
Downloads
950
Updated
8 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Cobblemon Altered Realms servers

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

  • 1.21.1
  • 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 Cobblemon Altered Realms declares support for, newest first, with the Java runtime that version needs.

Other modpacks
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge21+declared8 Aug 2024

Download

From Cobblemon Altered Realms’s own host. Nothing is re-hosted here.

Most recently published release

2.0release6 Mar 2026

Cobblemon Altered Realms.mrpack · 113.8 MB · for 1.21.1 · NeoForge

Download this release
3f0d991c418b…
Older versions9
  • 1.0.128 Jan 20261.21.173.1 MB176 downloads6b12c0287a42…Get
  • 1.025 Jan 20261.21.173.1 MB46 downloadsbdec20318802…Get
  • 0.73 Jan 20261.21.189.3 MB98 downloadse52829a94d84…Get
  • 0.630 Dec 20251.21.188.9 MB65 downloads397ae6ef0377…Get
  • 0.525 Dec 20251.21.188.8 MB54 downloadsb5758d73848e…Get
  • 0.4.522 Dec 20251.21.187.2 MB50 downloads4d2b25bd836f…Get
  • 0.422 Dec 20251.21.187.2 MB27 downloads14bef3af0701…Get
  • 0.318 Dec 20251.21.186.4 MB57 downloadsc36d3ebbe235…Get
  • 0.216 Dec 20251.21.1376.2 MB49 downloads47ef85b63817…Get

Frequently asked

Does Cobblemon Altered Realms work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Cobblemon Altered Realms 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 Cobblemon Altered Realms 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 Cobblemon Altered Realms support?

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 Cobblemon Altered Realms?

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 Cobblemon Altered Realms 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 Cobblemon Altered Realms?

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 Cobblemon Altered Realms 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.

Details from Modrinth, where the author last updated it on 6 Mar 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? .