Source-checkedCreatures & NPCs

Mob AI Tweaks

by Unknowneth · for Minecraft

A mod that reworks mob AIs. Including some bosses.

516KDownloads
todayLast updated
MITLicense
Fabric · Forge +1Loaders

About Mob AI Tweaks

From Modrinth

A mod that reworks mob AIs. Including some bosses.

Mob AI Tweaks for Curseforge

Mob AI Tweaks for Bedrock Edition

Fresh AI Tweaks

Withering AI Tweaks

Support Me!

This mod reworks various mobs in the game to give them something new to them

Special thanks to:

>MysticPasta1 for helping me fix Forge issues for 1.20

>v191949v for Chinese localization

>karaagedesu1 for Japanese localization

Fabric version requires Fabric API

Forge/Neoforge requires Sinytra Connector and its dependencies

_GENERAL BOSSES, MINIBOSSES AND BOSS-LIKE ENTITIES_

-Announces when they have been defeated just like in Terraria. e.g. "Ender Dragon has been defeated!"

-Bosses announce when they have been summoned. e.g. "Wither has been summoned!"

-Does not work for modded bosses just yet.

The Wither

-Moveset completely reworked.

-6 Phases total.

-Blue wither skulls have homing now.

-Only regenerates health upon dealing damage to anything or when it has no target.

-Enrages upon losing 25% of its health in a single attack. When enraged, attacks 2x faster and shoots 4x faster but drops 2 nether stars on defeatrint.

-Removed projectile immunity entirely. Only takes 50% less damage from arrows only below 50% health.

-Reworked attack visuals. Now turns blue when about to fire a blue wither skull. The original "phase 2 shield" visual effect has been repurposed into a charging animation (since this mod removes phase 2 projectile immunity)

-Phase 1: Just hovers in place, following you if you're moving too far and away if too close.

-Phase 2: Gains a slanted slam attack, spawns a pool of harming in hard difficulty, creates a creeper-sized explosion if mob griefing is enabled. Starts below 83% health.

-Phase 3: Starts strafing around the player and begins firing blue wither skulls along side the occasional slam attacks. Starts below 66% health.

-Phase 4: Starts hovering lower and closer to the player, gains a Bedrock Wither-like dash attack. Creates a trail of explosions if mob griefing is enabled. Starts below 50% health.

-Phase 5: Dashes twice. Blue wither skulls become more common. Starts below 33% health.

-Phase 6: Chains all of the attacks continuously without stopping. Starts below 17% health.

-On death: Explodes very flashily and shoots skulls everywhere before dying for good. Also creates a shower of xp amounting to a total of 1000 xp.

Elder Guardian

-Now a proper boss instead of a generic tanky enemy variant.

-Increased health to 150 (75 hearts) and defense by 8 (4 armor). Can be edited in the config.

-Laser attack reworked to be a proper laser beam. This means it is now a straight line that deals damage continuously when touched.

-Has a boss health bar now but only shows up when you start fighting it.

-It can dash now. Dashes more frequently as health gets lower. Spawns "seeking mines" below 30% health in hard difficulty (as of right now, they're just reskinned shulker bullets that deal no damage but drain your oxygen instead).

-Is now immune to explosive damage.

-Has a death animation now.

Ender Dragon

-Enrages when losing 15% of her health in a single attack (this means beds instantly enrage her!). Attacks significantly more frequently when enraged and all of her melee attacks burn targets.

-Fireball attacks have been changed to chain fire. Shoots faster the lower her health is or when enraged. To compensate, dragon fireballs have been nerfed, the harming pools they spawn last shorter now and are significantly smaller.

-Swoop attacks are now more consistent, mimicking her pre-1.9 swoop attack.

-End crystal healing reworked, no longer heals passively. End crystals now heal her in bursts. Additionally, end crystals now emit a flashing effect to indicate how close they are to finishing healing her.

-No longer perches randomly, and is now completely invincible while flying. Instead, to get her to perch, you need to destroy the current end crystal healing once in peaceful, twice in easy, thrice in normal, and four times in hard.

-After destroying the connected crystals, she perches and DPS phase begins. She now takes far less damage to her body but far more to the head. Additionally, her projectile immunity is removed.

-While perched, she spawns significantly more dragon's breath. Additionally, said dragon's breath moves now in a conic pattern away from her and as well as deal even more damage. (Unless Enhanced AI mod is installed as that mod makes area of effect clouds spherical and this becomes very unfair to dodge)

-Last but not the least, this mod fixes a crash in vanilla caused by leaving the game as soon as she shoots a fireball.

Ravagers

-Are now minibosses.

-Have a boss health bar.

-Has a charge attack similar to goats, gets stunned upon hitting a wall.

_GENERAL HOSTILE MOBS_

Line of Sight

-Things can now reduce mob attack ranges and are separated into two categories: debuffs and entity actions. Keep in mind that for each category, there is a "highest priority" that overrides the lower ones.

-Entities with the glowing effect can now be targeted through blocks.

Debuffs (ordered from highest to lowest priority):

-Blindess: 66% reduction, gives mobs a harder time pathfinding, disables ranged attacking mobs.

-Darkness: 80% but it pulsates (because the effect does)

-Nausea 20% reduction, also makes ranged mobs inaccurate (the higher the level, the more inaccurate they are)

Entity actions (ordered from highest to lowest priority):

-Invisibility: 75% reduction (Do note that the moment an invisible target attacks or takes damage, the mob will immediately know where they are!)

-Crawling: 66% reduction

-Sneaking: 50% reduction

Bad Omen

Read the full description on Modrinth →

Highlights

From source data

Game versions

Supports 12 Minecraft versions, the newest being 26.2.

Loaders

Runs on Fabric, Forge and NeoForge.

Footprint

Rated a light load on a server.

Mob AI Tweaks on Nxeon

From our catalogue
One-click install
Supported on Nxeon Minecraft servers. We download it from Modrinth, place it, and restart the server.
Server side
Required on the server
Server type needed
Fabric, Forge, NeoForge
Server load
light
Smallest plan we suggest
Minecraft — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
Latest build
1.11.4, released 2026-11-03

Game versions by loader

LoaderGame versionsNewest
Fabric1.20.1 to 26.2 (5 versions)26.2
Forge1.20.1 to 1.21.1 (3 versions)1.21.1
NeoForge1.20.1 to 1.21.1 (3 versions)1.21.1

From 6 recorded builds of Mob AI Tweaks.

Recent builds

BuildReleasedGame versionsLoaders
1.11.42026-11-031.21 to 1.21.1 (2 versions)Fabric, Forge, NeoForge
1.11.32026-08-081.21.11Fabric
1.11.0-beta beta2026-08-0326.2Fabric
1.11.22026-06-041.21.11Fabric
1.11.32026-05-071.21 to 1.21.1 (2 versions)Fabric, Forge, NeoForge
1.11.22026-05-071.20.1Fabric, Forge, NeoForge

Dependencies

  • Optional: modrinth project u58R1TMW (modrinth, not in our catalogue)

Declared by the newest build that lists any. Required ones are installed with it on one-click installs.

Run Mob AI Tweaks on a Minecraft server

Pick a server or deploy a new one above; it is installed in one click.

What kind of mod it is

From the catalog
Listed on Modrinth as “Mods”

Creatures & NPCs

Adds or changes creatures, NPCs and how they behave.

Runs on your server

From source side support

Modrinth lists Mob AI Tweaks as required on the server. Check its Modrinth page to see whether players need it too.

Compatibility

Game
Minecraft
Loaders
FabricForgeNeoForge
Runs on
Serverrequired on the server
Game versions
26.2 and 11 earlier

Verified at the source

  • ✓ModrinthOfficial listing, checked 2026-11-04Open ↗
  • ✓AuthorUnknowneth, as published on Modrinth
  • ✓LicenseMITFree

Mob AI Tweaks, answered

Generated from the mod’s own source data.

Do my players need to install Mob AI Tweaks?

Modrinth lists Mob AI Tweaks as required on the server. Check its Modrinth page to see whether players need it too.

Which loaders does it support?

Fabric, Forge and NeoForge.

Is it free?

Yes. Mob AI Tweaks is free to download from Modrinth. Its license is MIT.

How do I add it to my Nxeon server?

Use “Add to a server” on this page, or open NxLabs from your dashboard. We install it, restart your server and switch it on.

NxLabs

Run Mob AI Tweaks on a Minecraft server.

Deploy in about a minute from $4.99 a month, then add Mob AI Tweaks in one click.