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Smart Brain Lib Mod offers a better way to handle mob artificial intelligence. This is a library mod, which means it provides tools for other mods to create more complex and smarter mobs. It reworks Minecraft’s default brain system to make it more efficient and easier to work with.

Features:

  • Automatically handles memory types for mobs, removing the need for manual setup.
  • Allows for advanced and flexible sensor configurations.
  • Provides built-in behaviors with features like cooldowns and callbacks.
  • Lets you add, remove, or change a mob’s behavior while the game is running.
  • Replaces the standard brain system with more efficient functions to improve performance.
  • Includes extra sensors, behaviors, and memory types for more options.

Screenshots:

Two green Creepers wandering in a grassy field near the ocean shore
Two green Creepers wandering in a grassy field near the ocean shore
Close up view of a Creeper face with another in the background
Close up view of a Creeper face with another in the background
A glow squid swimming through a dark underwater cave with glowing particles
A glow squid swimming through a dark underwater cave with glowing particles
A glow squid moves through deep water near green seagrass and rocks
A glow squid moves through deep water near green seagrass and rocks
Minecraft underwater landscape featuring seagrass and kelp on the sandy ocean floor
Minecraft underwater landscape featuring seagrass and kelp on the sandy ocean floor

Smart Brain Lib Mod Download Links

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For Minecraft 26.1.2, 26.1.1, 26.1

Fabric 441 KB May 12, 2026
Forge 438 KB May 12, 2026
NeoForge 434 KB May 12, 2026

For Minecraft 1.21.11

Fabric 371 KB Apr 15, 2026
NeoForge 378 KB Apr 15, 2026

For Minecraft 1.21.10

Fabric 371 KB Apr 15, 2026
NeoForge 378 KB Apr 15, 2026
Forge 378 KB Apr 15, 2026

For Minecraft 1.21.9

Fabric 371 KB Apr 15, 2026
NeoForge 378 KB Apr 15, 2026

For Minecraft 1.21.8, 1.21.7, 1.21.6

Fabric 371 KB Apr 15, 2026
NeoForge 378 KB Apr 15, 2026
Forge 378 KB Apr 15, 2026
Fabric 370 KB Apr 15, 2026
NeoForge 377 KB Apr 15, 2026
Forge 377 KB Apr 15, 2026

For Minecraft 1.21.6

Fabric 370 KB Apr 15, 2026
NeoForge 377 KB Apr 15, 2026
Forge 377 KB Apr 15, 2026

For Minecraft 1.21.5

Fabric 370 KB Apr 15, 2026
NeoForge 377 KB Apr 15, 2026
Forge 377 KB Apr 15, 2026

For Minecraft 1.21.4

Fabric 370 KB Apr 15, 2026
NeoForge 377 KB Apr 15, 2026
Forge 377 KB Apr 15, 2026

For Minecraft 1.21.3

Fabric 368 KB Apr 15, 2026
NeoForge 375 KB Apr 15, 2026
Forge 375 KB Apr 15, 2026

For Minecraft 1.21.1, 1.21

Forge 374 KB Apr 15, 2026
Fabric 375 KB Apr 15, 2026
NeoForge 382 KB Apr 15, 2026

For Minecraft 1.20.6

Fabric 348 KB Apr 15, 2026
NeoForge 348 KB Apr 15, 2026

For Minecraft 1.20.4

Fabric 334 KB Apr 15, 2026
NeoForge 334 KB Apr 15, 2026
Forge 337 KB Apr 15, 2026

For Minecraft 1.20.2

Fabric 330 KB Apr 15, 2026
Forge 329 KB Apr 15, 2026

For Minecraft 1.20.1

Forge 354 KB Apr 15, 2026
Fabric 351 KB Apr 15, 2026
NeoForge 353 KB Apr 15, 2026

For Minecraft 1.19.4

Fabric 339 KB Apr 15, 2026
Forge 330 KB Apr 15, 2026

For Minecraft 1.19.3

Fabric 315 KB Apr 15, 2026
Forge 306 KB Apr 15, 2026

For Minecraft 1.19.2

Fabric 315 KB Apr 15, 2026
Forge 306 KB Apr 15, 2026

For Minecraft 1.18.2

Fabric 312 KB Apr 15, 2026
Forge 303 KB Apr 15, 2026

For Minecraft 1.16.5

Forge 271 KB Apr 15, 2026

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