Encounter: Mob AI Tweaker
Java mod listed for Minecraft 1.20–1.21. Downloads from the MC Java Mods app on Android.
I don't know my version or loader
Introduction
Occasionally, the attack/flee AI behavior of certain mobs may not align with the modpack creator’s intended design, as mod authors cannot take all possible mod combinations into consideration.
For example, modA adds new monsters, while modB adds some NPCs and animals. However, when you put these two mods together into your modpack, monsters from modA show no interest in chasing modB's NPCs and animals……
In case of that, with this mod, Developers can configure the list of mobs that specific entities will attack or flee from via the configuration file (located at config/encounter), and the changes support hot-reloading for seamless adjustments.

Configuration File
{"entity_id":"example:entity_1","avoid": ["example:avoid_1","example:avoid_2"],"hostile": ["example:hostile_1","example:hostile_2"]},Add registry name (minecraft:zombie etc.) to the config file, then /reload or re-open the save to apply the tweaks.Note
- You can include this mod in your modpack.
- Passive mobs (e.g., villagers) cannot attack, even if hostile targets are added to their AI.
- Slimes cannot deal damage to added hostile targets for unknown reasons.
- Hot-reloading might not apply to mobs already spawned in the world. Changes will take effect on newly spawned mobs.
- Villager AI is unique: If you revert changes to their flee behavior, a game restart is required to stop them from fleeing previously configured targets.
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.20.1, 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 CurseForge — 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.
- Ships as Encounter-NeoForge-1.21.1-1.0.0.jar — drop this file into the mods folder
- Download size: 15 KB
- Download link checked 28 Sept 2026 — working
These come from our own check of the pack file, not from the source page.