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Minecraft Java 1.21 Mods

Browse 82 free mods for Minecraft Java 1.21 — popular picks include Dog Modes, Robot Legion, LancerCore.

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Dog Modes
1.21

Dog Modes

Enhances tamed wolf utility with switchable behavior modes (Patrol, Peaceful), passive health regeneration, and automated scavenging mechanics to improve combat viability.

293downloads
Robot Legion
1.21.1fabric

Robot Legion

Build a steampunk robot army. Workers automate jobs while combatants fight beside you through three boss dungeons. Trade with engineer villagers for rare parts.

260downloads
LancerCore
1.21

LancerCore

Advanced Spear Combat: Combos, Elemental Catalysts & Stats

225downloads
Gangland Warfare – GTA-Style Crime
1.20

Gangland Warfare – GTA-Style Crime

Turn your server into a living crime world with gangs, guns, bounties, and progression

223downloads
Spider Drops OP Loot
1.21

Spider Drops OP Loot

Turn spiders into an overpowered loot source for intense and rewarding survival combat.

220downloads
Better Reimagined
1.21.11fabric

Better Reimagined

Enjoy this survival experience in an epic and immersive adventure. It introduces new mechanics that enrich gameplay with dynamic combat, while vibrant new biomes and impressive structures encourage exploration with unique and challenging mobs

215downloads
Wound & Bleeding
1.21.4

Wound & Bleeding

Wound & Bleeding adds a realistic injury system where players and mobs can bleed from combat, losing health over time unless treated with craftable bandages. It enhances tactical gameplay in PvP and survival by making every hit potentially deadly.

191downloads
FaunaReborn
1.21

FaunaReborn

Fauna evolves: instincts take over. Configurable hostile-fauna combat plugin for Paper/Folia 1.21+

174downloads
Copper warrior
1.21.1neoforge

Copper warrior

This mod gives you the power to raise a faithful army of your own.

169downloads
Eternal Ascension
1.21.4neoforge

Eternal Ascension

An immersive RPG progression mod overhauling combat attributes, custom magic damage tags, and scaling mechanics.

162downloads
CMBT (Combat)
1.21.4

CMBT (Combat)

Combat datapack that turns existing tools into new weapons.

161downloads
RealNpcs
1.21

RealNpcs

RealNPCs is a highly advanced, cinematic PvP bot plugin designed for recording epic 1v100 horde battles and realistic bot combat in Minecraft!

154downloads
CobbleCatalyst
1.21.1neoforge

CobbleCatalyst

Adds Cobblemon trainer battle phases to Cataclysm boss fights, turning boss fights into hybrid combat and Pokemon battle challenges.

149downloads
Buff Banners
1.21.3fabric

Buff Banners

Hostile mobs can spawn with Buff Banners that grant combat buffs.

144downloads
euclidia
1.21.1neoforge

euclidia

Adds Neural Network Powered Epic Fight Mob Combat

126downloads
EI Mythic MobsHook
1.20

EI Mythic MobsHook

This plugin connects MythicMobs with ExecutableItems, allowing you to use custom items as abilities and mob skills. Easily trigger ExecutableItems through MythicMobs mechanics, events, or drops. Perfect for RPG servers and advanced combat systems.

116downloads
Time Hunter
1.21.5

Time Hunter

Time Hunter is a team PvP survival datapack where players compete by mining resources and eliminating foes to extend their countdown, with elimination on timeout, supporting 2-4 team battles and strategic combat.

114downloads
Bunny Squad
1.21

Bunny Squad

Tame wild rabbits with sweet berries to create loyal combat companions! Your tamed bunnies will follow you, sit on command, and fiercely defend you from monsters with rainbow particle attacks. Turn cute rabbits into your personal army.

112downloads
Tribes & Legions: Tame Mobs, Build Your Tribe!
1.21.1neoforge

Tribes & Legions: Tame Mobs, Build Your Tribe!

Tribes & Legions lets you tame mobs, build your tribe, and manage companions through custom skills, equipment, progression, and a custom UI—while preserving their original abilities and combat styles.

106downloads
MOAR Tools
1.21.1neoforge

MOAR Tools

MOAR Tools is a progression and combat expansion mod that adds three new gear tiers, two dungeon systems, a full boss encounter, and a suite of custom mobs all designed around a dark, End-themed aesthetic.

86downloads
McCombat
1.21.9fabric

McCombat

McGather skills and abilities SWORDS AXES TRIDENTS MACES BOWS CROSSBOWS UNARMED needs McCore

83downloads
Deadly Skeletons
1.21.1fabric

Deadly Skeletons

Turns Skeletons into a serious late-game threat by overhauling their combat equipment and spawn rules.

83downloads
NocturneSlayer
1.21

NocturneSlayer

NocturneSlayer is a Minecraft plugin that adds immersive combat mechanics, progression systems, and dark fantasy gameplay elements.

77downloads
[Discontinued] Farmy
1.21

[Discontinued] Farmy

Advanced Farming Overhaul with Skills, Gear, Pets, and much more

69downloads
Piece
1.21

Piece

Piece is a high-performance Minecraft 1.21 RPG combat plugin that transforms your server into a competitive MMO-style PvP experience. It introduces deep progression systems, , bounty hunting, stamina-based combat,

62downloads
PetLeveler
1.21.1forge

PetLeveler

Level up your tamed wolves. Dogs gain XP from combat, grow stronger, and unlock unique abilities like Splash Bite, Fire Resistance, and Lifesteal

61downloads
Attack Particles
1.21.11fabric

Attack Particles

A Minecraft Mod.Laggy visually cluttered combat particles 😂 AI coded, open source.

59downloads
PILLAGER ARMY
1.21.8neoforge

PILLAGER ARMY

This mod adds new creatures, a new interface, and even magic. It also improves raids, making them more complex.

57downloads
Elemental Mob
1.21.1neoforge

Elemental Mob

Elemental Mob gives creatures elemental identities, combat traits, themed status effects, resistance potions, and elemental enchantments.

50downloads
BlueArchive Types
1.21

BlueArchive Types

a plugin brings the type table in Blue Archive into minecraft combat

47downloads
Enhanced Mobs+
1.21fabric

Enhanced Mobs+

Enhanced Mobs makes vanilla hostile mobs smarter and more dangerous without adding any new mobs or crazy mechanics. It keeps the vanilla feel, but improves how mobs behave in combat. Built for Fabric.

34downloads
BackguardAegis
1.21.1neoforge

BackguardAegis

Overhauls shield combat by adding a 360° omnidirectional "Ultra Shield" mechanic with dynamic shockwaves, aggressive projectile deflection, and custom enchantments.

30downloads
Pixel Combat
1.21.11

Pixel Combat

Pixel Combat is a professional, zero-dependency PvP combat plugin built for competitive Paper 1.21 servers.

30downloads
oPvP-Toggle
1.21

oPvP-Toggle

oPvP-Toggle is a lightweight PvP management plugin that allows players to disable PvP combat for added safety. It also includes mob protection, preventing hostile mobs from targeting or damaging protected players.

18downloads
TeaTM's Arctic Expansion
1.21.1neoforge

TeaTM's Arctic Expansion

This is a relaxed non-combat mod that expands the arctic biomes with mechanics, mobs, items, and decorations.

18downloads
Zombie Nightmare Expansions Mod (1.21.1, 1.20.1) – Undead Horror Monsters
1.21.1forge

Zombie Nightmare Expansions Mod (1.21.1, 1.20.1) – Undead Horror Monsters

Zombie Nightmare Expansions Mod adds multiple high-detail undead creatures with different mechanics, combat styles, and special drops. The mod is designed for horror, zombie apocalypse, RPG, and hardcore gameplay packs. Features: Undead Mobs Disemboweler Large heavy zombie variant Targets players and cows High melee damage Drops Deathly Heart Tormented Zombie Disguises itself as a normal […]