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Big Brain

Big Brain

by seymourimadeit • Downloads: 0 • Followers: 0
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About:

Big Brain is a mod that focuses on adding smarter ai for the many mobs of Minecraft!

Features: (all are configurable)

The Buckler

moved to Piglin Proliferation in 1.20

All Animals

All non-flying and non-tamed animals except for cats and foxes will attempt to find shelter when it's night or raining. They will also alert their herd members to panic if one of them is attacked.

Pigs

All the other animals have special features, cows give leather, which can be used to make armor, chickens have feathers that are used to make arrows, sheep even have wool, that you use to build things. Pigs on the other hand don't have any advantages.

This mod changes that, pigs now have a larger litter size of 2 - 6 piglets, giving the player a reason to consider breeding pigs for their farm.  Pigs

Piglin Brutes

moved to piglin proliferation in 1.20

Pillagers

Pillager  combat can get boring, most of the time they charge you with no regard for their lives.

Pillagers are still dumb with this mod, but at the very least care for their own lives.

They now run to another direction while they're reloading, they also move closer to you if they have a multishot crossbow.

Pillagers leaders in patrols also now have the ability to notice you from a farer distance by using a spyglass that they have a 50% chance of spawning with. Pillager

Snow Golems (and snowballs)

Snowballs are now able to give entities 5 seconds of freezing, which can be added up by successive shots. Golem

All Mobs

These are changes that apply to all mobs:

 -Blindness now affects mob vision, reducing their range by 90%. This stacks with other vision modifiers.

 -A patch for melee mobs resetting their attack cooldown if they were in front of you has been added.

 -A config option has been added to allow all mobs to attack villagers, this is disabled by default and has a blacklist included.

 -Mobs that are able to open doors are now able to open fence gates as well.  Fence

-Bow-wielding mobs now have a new attack pattern. Many people complain about bow-wielding mobs being frustrating to fight against. This rework is meant to help mitigate against this notion. Instead of strafing bow-wielders will instead stand still until they fire three shots. After three shots they will move to another position. If the player is too close for comfort then they will also try to find another position.

-Humanoid mobs, such as piglins and zombies, are now able to jump through gaps (credits to the Mobs Attempt Parkour mod for their direct inspiration) parkoah

Husks

Husks will now upon seeing the player burrow for some time and attempt to grab and drag the player down. However, if a significant amount of damage is dealt while the husk is burrowing it will cancel its attack and do regular melee. You cannot escape the husk while being grabbed but you are allowed to attack it since it has a delay between grabbing and pulling you down. Going on a higher elevation level than the husk will tire it out and also cause it to go into regular melee stance. Husk

Ocelots

Ocelots now attack creepers, parrots, and phantoms to give them some purpose.

Sheep

Sheep now run away from wolves instead of acting like nothing is happening.

Polar Bears

Polar bears now attack fish.  

 Frequently Asked Questions

Is this mod compatible with x?

Try them both and see!

All Versions

+ Add Version
Name Game version Platforms Published Downloads Actions
1.20.1
Forge Neoforge
2mo ago 1
1.21.1
Neoforge
2mo ago 1
1.21.1
Neoforge
3mo ago 1
1.20.1
Forge Neoforge
3mo ago 1
1.21.1
Neoforge
3mo ago 1
1.20.1
Forge Neoforge
11mo ago 1
1.20.1
Forge
11mo ago 1
1.21.1
Neoforge
last yr. 1
1.21.1
Neoforge
last yr. 1
1.21.x
Neoforge
last yr. 1
1.21
Neoforge
last yr. 1
1.21
Neoforge
last yr. 1
1.20.1
Forge Neoforge
last yr. 1
1.20.1
Forge
last yr. 1
1.21
Neoforge
last yr. 1
1.20.2
Forge
last yr. 1
1.20.x
Forge
last yr. 1
1.19.2
Forge
last yr. 1
1.19.2
Forge
last yr. 1
1.19.4
Forge
last yr. 1
1.20.x
Forge
last yr. 1
1.19.4
Forge
last yr. 1
1.20.x
Forge
last yr. 1
1.19.4
Forge
last yr. 1
1.20.x
Forge
last yr. 1
1.19.4
Forge
last yr. 1
1.19.2
Forge
last yr. 1
1.19.2
Forge
last yr. 1
1.19.4
Forge
last yr. 1
1.19.2
Forge
last yr. 1
1.19.4
Forge
last yr. 1
1.19.3
Forge
last yr. 1
1.19.3
Forge
last yr. 1
[1.7.8] 1.7.8 by seymourimadeit on Sep 05, 2026
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  • [CHANGE] fix crash with GOETY by making sure layer is being added to the right renderer

[2.2.8] 2.2.8 by seymourimadeit on Sep 05, 2026
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CHANGELOG:- [CHANGE] future proofed Drowned and Armadillo render layer addition code to prevent crashing

[2.2.7] 2.2.7 by seymourimadeit on Jul 19, 2026
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CHANGELOG:- [CHANGE] optimize parkour ai heavily

[1.7.7] 1.7.7 by seymourimadeit on Jul 19, 2026
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  • [CHANGE] heavily optimize parkour ai

[2.2.6] 2.2.6 by seymourimadeit on Jul 14, 2026
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[CHANGE] add better implementation for No Man's Land litter texture compatibility
[1.7.6] 1.7.6 by seymourimadeit on Dec 07, 2025
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  • [CHANGE] modify code to make it work on both neoforge and later forge versions on 1.20.1
  • [CHANGE] mitigate against #70 by implementing changes from 1.21.1 to 1.20.1

[1.20.1-1.7.5] 1.20.1-1.7.5 by seymourimadeit on Nov 29, 2025
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  • Made cooldown for FindShelterGoal longer to further mitigate against lag
  • Fix crashes with the Recruits mod
[2.2.5] 2.2.5 by seymourimadeit on Jun 12, 2025
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  • [CHANGE] fix #60 (crash with mob look direction during parkour ai)
  • [CHANGE] Improved animal panic feature by making them actively avoid the player after a herd mate is injured if they were not spawned by breeding or structure generation
  • [CHANGE] fix guards not being able to use bows if big brain was installed
  • [CHANGE] fix #63
  • [CHANGE] fix ocelots being attacked by creepers

[2.2.4] 2.2.4 by seymourimadeit on Dec 24, 2024
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  • Fixed crash with pillagers setting target
  • Improved panic ai
  • polished husk burrowing by making them stop burrowing if other husks are burrowing
  • Polished parkour ai to use vanilla algorithm instead of an outdated copy and paste
  • added config for skeletons shooting faster based on distance
  • Hostile baby mobs have their healths halved
[2.2.3] 2.2.3 by seymourimadeit on Jul 21, 2024
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  • Fix animal panic not functioning
  • Config GUI
[2.2.2] 2.2.2 by seymourimadeit on Jul 09, 2024
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  • Update to latest neoforge
  • Fix bug with Pillagers not running while reloading
[2.2.1] 2.2.1 by seymourimadeit on Jun 25, 2024
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  • Update to latest neoforge
[2.2.0] 2.2.0 by seymourimadeit on Jun 14, 2024
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  • Made animal shelter a whitelist instead of a blacklist
  • Port to 1.21
[1.20.2-1.7.5] Big Brain 1.20.2-1.7.5 by seymourimadeit on Oct 08, 2023
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  • Update to 1.20.2
[1.20-1.7.3] Big Brain 1.20-1.7.3 by seymourimadeit on Sep 17, 2023
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  • Fixed bugs with parkour and lag
[1.19.2-1.6.7] Big Brain 1.19.2-1.6.7 by seymourimadeit on Sep 17, 2023
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  • Fixed bugs with parkour and lag
[1.19.2-1.6.6] Big Brain 1.19.2-1.6.6 by seymourimadeit on Jul 24, 2023
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  • Fixed husk burrowing not working

  • Attempted to make mob parkouring more natural
[1.19.4-1.6.8] Big Brain 1.19.4-1.6.8 by seymourimadeit on Jul 24, 2023
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  • Fixed husk burrowing not working

  • Attempted to make mob parkouring more natural
[1.20-1.7.2] Big Brain 1.20-1.7.2 by seymourimadeit on Jul 24, 2023
Download
  • Fixed husk burrowing not working

  • Attempted to make mob parkouring more natural
[1.19.4-1.6.7] Big Brain 1.19.4-1.6.7 by seymourimadeit on Jul 04, 2023
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  • Fix player not being able to attack
[1.20-1.7.1] Big Brain 1.20-1.7.1 by seymourimadeit on Jul 01, 2023
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  • skeleton model fix
[1.19.4-1.6.6] Big Brain 1.19.4-1.6.6 by seymourimadeit on Jun 21, 2023
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  • Fix bug with skeleton model crashing
[1.20-1.7.0] Big Brain 1.20-1.7.0 by seymourimadeit on Jun 15, 2023
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  • Port to 1.20
  • Removed buckler (moved to Piglin Proliferation)
[1.19.4-1.6.5] Big Brain 1.19.4-1.6.5 by seymourimadeit on Jun 09, 2023
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  • Fixed husk burrowing crash
  • Fixed issue with husks trying to attack target that is already riding
another husk
  • Addressed parkour ai activating on flat surfaces
[1.19.2-1.6.5] Big Brain 1.19.2-1.6.5 by seymourimadeit on Jun 09, 2023
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  • Fixed husk burrowing crash
  • Fixed issue with husks trying to attack target that is already riding
another husk
  • Addressed parkour ai activating on flat surfaces
[1.19.2-1.6.4] Big Brain 1.19.2-1.6.4 by seymourimadeit on Jun 02, 2023
Download
  • Bow attack rework

Many people complain about bow-wielding mobs being frustrating to fight aganist. This rework is meant to help migitate aganist this notion.
Instead of strafing bow-wielders will instead stand still until they fire three shots. After three shots they will move to another position. If the player is too close
for comfort then they will also try to find another position.

  • New mob jump ai

Piglins, Illagers, and other humanoid mobs will try to jump through gaps in order to reach their intended target.

  • Husk burrowing AI

Husks will now upon seeing the player burrow for some time and attempt to grab and drag the player down.
However, if a significant amount of damage is dealt while the husk is burrowing it will cancel its attack and do regular melee.
You cannot escape the husk while being grabbed but you are allowed to attack it since it has a delay between grabbing and pulling you down.
Going on a higher elevation level than the husk will tire it out and also cause it to go into regular melee stance.

  • Dolphin fix

Dolphins will no longer die if they're unable to despawn in an unloaded chunk.
[1.19.4-1.6.4] Big Brain 1.19.4-1.6.4 by seymourimadeit on Jun 02, 2023
Download
  • Bow attack rework
Many people complain about bow-wielding mobs being frustrating to fight aganist. This rework is meant to help migitate aganist this notion.
Instead of strafing bow-wielders will instead stand still until they fire three shots. After three shots they will move to another position. If the player is too close
for comfort then they will also try to find another position.

  • New mob jump ai
Piglins, Illagers, and other humanoid mobs will try to jump through gaps in order to reach their intended target.

  • Husk burrowing AI
Husks will now upon seeing the playerburrow for some time and attempt to grab and drag the player down.
However, if a significant amount of damage is dealt while the husk is burrowing it will cancel its attack and do regular melee.
You cannot escape the husk while being grabbed but you are allowed to attack it since it has a delay between grabbing and pulling you down.
Going on a higher elevation level than the husk will tire it out and also cause it to go into regular melee stance.

  • Dolphin fix

Dolphins will no longer die if they're unable to despawn in an unloaded chunk.
[1.19.2-1.6.3] 1.19.2-1.6.3 by seymourimadeit on Mar 19, 2023
Download
  • Backports previous version's features to 1.19.2
[1.19.4-1.6.3] 1.19.4-1.6.3 by seymourimadeit on Mar 18, 2023
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  • 1.19.4 port
[1.6.3] 1.6.3 by seymourimadeit on Mar 18, 2023
Download
  • Added drowned glowing
  • Added bee animations from bedrock
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