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Project CobblebrainMinecraft mod for 1.21.1

CobbleBrain is a mod that gives Pokémon a "brain," allowing them to think, talk, and interact with their surroundings in dynamic ways. Easy to setup and play!

client and servernewest supported 1.21.1Game MechanicsSocial
Latest version
Neoforge-1.4.1
Minecraft
1.21.1
Java
Java 21+
Loaders
Fabric, NeoForge
Licence
MPL-2.0
Downloads
18.0k
Updated
3 d ago
Available on
Modrinth
Space NodeOur hosting

Host Project Cobblebrain servers

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

  • 1.21.1
  • Fabric
  • NeoForge
  • 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 Project Cobblebrain declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1Fabric, NeoForge21+declared8 Aug 2024

Download

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

All 32 releases
Neoforge-1.4.1release29 Jul 2026

cobblebrain-neoforge-1.4.1.jar · 0.7 MB · for 1.21.1

Download latest
53e5abf9adf5…
Older versions24
  • Fabric-1.4.129 Jul 20261.21.10.6 MB183 downloadsf76a532501cb…Get
  • Neoforge-1.4.019 Jul 20261.21.10.6 MB132 downloads163ea8af8deb…Get
  • Fabric-1.4.019 Jul 20261.21.10.6 MB750 downloadsb544ecaa9727…Get
  • Fabric-1.4.0-BETA6 Jul 20261.21.10.5 MB827 downloads0e50b10e91e0…Get
  • Neoforge-1.4.0-BETA6 Jul 20261.21.10.5 MB95 downloadsc86edf9a87f8…Get
  • Neoforge-1.3.229 May 20261.21.10.4 MB770 downloads12f05cd3331e…Get
  • Fabric-1.3.229 May 20261.21.10.4 MB4.4k downloads6c3c1952d2f2…Get
  • Neoforge-1.3.2-BETA27 May 20261.21.10.4 MB74 downloads4335d5b8dad6…Get
  • Fabric-1.3.2-BETA27 May 20261.21.10.4 MB298 downloadsb472bdb16147…Get
  • Fabric-1.3.118 May 20261.21.10.4 MB1.2k downloadsfda59e76aca9…Get
  • Neoforge-1.3.118 May 20261.21.10.4 MB287 downloads866a8ec607e3…Get
  • Fabric-1.3.014 May 20261.21.10.4 MB103 downloads69805d36650a…Get
  • Neoforge-1.3.014 May 20261.21.10.4 MB49 downloads5866c15548c2…Get
  • Fabric-1.2.010 Apr 20261.21.10.3 MB364 downloads256935fb98fc…Get
  • NeoForge-1.2.010 Apr 20261.21.10.3 MB126 downloadsf49701379d93…Get
  • Neoforge-1.1.127 Mar 20261.21.10.3 MB80 downloadsb1e0563dc0ac…Get
  • Fabric-1.1.127 Mar 20261.21.10.3 MB213 downloads6126dff57e2c…Get
  • Neoforge-1.1.026 Mar 20261.21.10.3 MB23 downloadsc2a49d9c0880…Get
  • Fabric-1.1.026 Mar 20261.21.10.3 MB30 downloadsfc0d76e4d787…Get
  • Fabric-1.0.223 Mar 20261.21.10.3 MB63 downloads7ffae3ff6707…Get
  • NeoForge-1.0.223 Mar 20261.21.10.3 MB24 downloads7ff46aca9cb9…Get
  • NeoForge-1.0.122 Mar 20261.21.10.3 MB26 downloadsbd7d4fedf236…Get
  • Fabric-1.0.122 Mar 20261.21.10.3 MB73 downloads1d3566d82594…Get
  • Fabric-1.0.06 Mar 20261.21.10.2 MB544 downloads6198b49cf2bf…Get

Frequently asked

Does Project Cobblebrain work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Project Cobblebrain 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 Project Cobblebrain 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 Project Cobblebrain support?

Fabric, 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 Project Cobblebrain?

On the newest Minecraft version it supports, Java 21 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.

What licence is Project Cobblebrain under?

MPL-2.0, 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 Project Cobblebrain?

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 Project Cobblebrain 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. The download link goes to the source recorded for that release; verify the publisher, filename and 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 25 Sept 2026. 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? .