
ModsJava
Mob Brain Additions
Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
⬇ Download on ModrinthMob Brain Additions
This API can be used by other mods to give additional functionality to mobs that use the brain system. It depends on the SmartBrainLib mod, which implements an optimised and expanded version of the vanilla brain system.
Current features
Blocks
- a new (operator only) "Path Finding Node" block, which can save a map of strings and block positions
Memory Types
- "mob_brain_additions:is_near_home", a unit memory type
Sensor Types
- "mob_brain_additions:is_near_home", a sensor type that sets the "mob_brain_additions:is_near_home" memory type when the entity is within a configurable radius of its home position. If the entity is further away the "mob_brain_additions:is_near_home" memory type is removed, along with the vanilla walk_target and attack_target memory types
- "mob_brain_additions:update_home_from_path_finding_block", a sensor type that sets home position of an entity according to a nearby "Path Finding Node Block". The Path Finding Node Block has block positions mapped to strings. If the entity is an instance of the "TracksPathFindingNodes" interface, it has a "trackedPathFindingNodeId", which is used to determine which of the block positions of the node block is set aas its new home position.
Behaviours
- the "SetWalkTargetToHomePosition" behaviour sets the look_target and walk_target memories to the home position of the entity
- the "TargetOrRetaliateWhenNearHome" behaviour works very similar to the existing "TargetOrRetaliate" behaviour, but it only runs when the entity has the "mob_brain_additions:is_near_home" memory. Additionally, the target has to be near the entities home position. The maximum distance is configurable.
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
File checked by MCModsHub
- Ships as mob-brain-additions-1.0.0.jar — drop this file into the mods folder
- Download size: 102 KB
- Download link checked 24 Oct 2026 — working
These come from our own check of the pack file, not from the source page.