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mod

Big BrainMinecraft mod for 1.21.1

Improved AI for various mobs!

newest supported 1.21.1World Mobs
Latest version
bigbrain-2.2.7-1.21.1.jar
Minecraft
1.16.3 to 1.21.1
Java
Java 21+
Loaders
NeoForge, Forge
Licence
not stated
Downloads
1.5M
Updated
2 mo ago
Available on
CurseForge

Minecraft versions

Every version Big Brain declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge, Forge21+declared8 Aug 2024
1.21NeoForge, Forge21+declared13 Jun 2024
1.20.2Forge, NeoForge17+declared20 Sept 2023
1.20.1NeoForge, Forge17+declared12 Jun 2023
1.20Forge, NeoForge17+declared2 Jun 2023
1.19.4NeoForge, Forge17+declared14 Mar 2023
1.19.3NeoForge, Forge17+declared7 Dec 2022
1.19.2Forge, NeoForge17+declared5 Aug 2022
1.19.1NeoForge, Forge17+declared27 Jul 2022
1.19Forge, NeoForge17+declared7 Jun 2022
1.18.2Forge, NeoForge17+declared28 Feb 2022
1.18.1NeoForge, Forge17+declared10 Dec 2021
1.18NeoForge, Forge17+declared30 Nov 2021
1.17.1Forge, NeoForge16+declared6 Jul 2021
1.16.5NeoForge, Forge8+declared14 Jan 2021
1.16.4NeoForge, Forge8+declared29 Oct 2020
1.16.3NeoForge, Forge8+declared10 Sept 2020

Download

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

All 40 releases
bigbrain-2.2.7-1.21.1.jarrelease19 Jul 2026

bigbrain-2.2.7-1.21.1.jar · 0.1 MB · for 1.21.1

Download latest
4736a44cd8b0…
Older versions24
  • bigbrain-1.20.1-1.7.7.jar19 Jul 20261.20.10.1 MB2 downloadsc1bd18a2e2c2…Get
  • bigbrain-2.2.6-1.21.1.jar14 Jul 20261.21.10.1 MB52 downloads0b35857c8190…Get
  • bigbrain-1.20.1-1.7.6.jar7 Dec 20251.20.10.1 MB236 downloads807728da2ba7…Get
  • bigbrain-1.20.1-1.7.5.jar29 Nov 20251.20.10.1 MB177 downloadsad0b58091da5…Get
  • bigbrain-2.2.5-1.21.1.jar12 Jun 20251.21.10.1 MB1.9k downloads46667ff9dcaa…Get
  • bigbrain-2.2.4-1.21.1.jar24 Dec 20241.21.10.1 MB1.5k downloads91d3e171b8d1…Get
  • bigbrain-2.2.3-1.21.jar21 Jul 20241.21, 1.21.10.1 MB1.3k downloads8827f2052402…Get
  • bigbrain-2.2.2-1.21.jar9 Jul 20241.210.1 MB190 downloads16c743688498…Get
  • bigbrain-2.2.1-1.21.jar25 Jun 20241.210.1 MB169 downloadsdf5c3e7c6ee4…Get
  • bigbrain-2.2.0-1.21.jar14 Jun 20241.210.1 MB147 downloads343197934670…Get
  • bigbrain-1.20.1-1.7.4.jar14 Jun 20241.20.10.1 MB60.3k downloads319cc2a2a42a…Get
  • bigbrain-1.20-1.7.4-neoforge-compatible.jar14 Jun 20241.20.10.1 MB564 downloadsdf4765be5092…Get
  • bigbrain-1.20.2-1.7.5.jar8 Oct 20231.20.20.1 MB1.9k downloads06a2a09b1b0d…Get
  • bigbrain-1.19.2-1.6.7.jar17 Sept 20231.19.20.3 MB28.4k downloadse32569c20c85…Get
  • bigbrain-1.20-1.7.3.jar17 Sept 20231.20.10.1 MB56.7k downloads52c740b95787…Get
  • bigbrain-1.19.2-1.6.6.jar24 Jul 20231.19.20.3 MB2.9k downloads5b7c33476d40…Get
  • bigbrain-1.19.4-1.6.8.jar24 Jul 20231.19.40.3 MB789 downloads55c1dda64169…Get
  • bigbrain-1.20-1.7.2.jar24 Jul 20231.20, 1.20.10.1 MB12.5k downloadsfe02b671c277…Get
  • bigbrain-1.19.4-1.6.7.jar4 Jul 20231.19.40.3 MB392 downloads2b24cabcdd21…Get
  • bigbrain-1.20-1.7.1.jar1 Jul 20231.20, 1.20.10.1 MB1.2k downloadse66303991620…Get
  • bigbrain-1.19.4-1.6.6.jar21 Jun 20231.19.40.3 MB223 downloads0eecb2a7601b…Get
  • bigbrain-1.20-1.7.0.jar16 Jun 20231.20, 1.20.10.1 MB749 downloads608d8d348886…Get
  • bigbrain-1.19.4-1.6.5.jar9 Jun 20231.19.40.3 MB200 downloadsc036a518b465…Get
  • bigbrain-1.19.2-1.6.5.jar9 Jun 20231.19.20.3 MB3.5k downloads5f0f8ceae612…Get

Frequently asked

Does Big Brain work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Big Brain 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 Big Brain support?

Everything the author has declared, from 1.16.3 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Which platform or loader does Big Brain support?

NeoForge, 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 Big Brain?

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.

How do I install Big Brain?

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 Big Brain safely?

Start with the author's page on CurseForge, 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.

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.Jade 🔍Shows information about what you are looking at. (Hwyla/WAILA fork for Minecraft 1.16+)

Last checked 1 mo ago against CurseForge. 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? .