Minecraft Java 1.21 Mods
Browse 573 free mods for Minecraft Java 1.21 — popular picks include Casual Combat without Cause, Piece, ENTITY SMP Plugin.
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Casual Combat without Cause
An open-ended Hoplite-inspired PvP mod
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,
ENTITY SMP Plugin
This plugin, Anonymity, is a high-stakes tactical combat and social deduction system designed for hardcore survival or "Lifesteal" style servers. It centers around two core concepts: Hidden Identities and Powerful Relics.
Combat Dyes Mod
A mod that gives combat uses for dyes
Mechanic stats
Tracks the speed and consistency of combat mechanics using real client ticks or milliseconds.

Arsenal Roulette
Arsenal Roulette adds an Arsenal Dungeons Forge that lets you roll powerful dungeon-style enchantments onto weapons, armor, and books with animated effects and combat abilities. Build the forge through the Assembly Table, power it with resources and fight

teleporter rp
This resource pack will recolor items used in redstone teleportation mechanisms in the ender style.
identity thief
Identity Theft is a multiplayer Fabric mod. Killing another player temporarily steals their skin and visible username while granting combat and movement buffs. The disguise lasts 60 seconds.
Sinplem-Combat Mode
在Minecraft Fabric 1.21.11 版本中新增了战斗模式 / A combat mode has been added in Minecraft Fabric version 1.21.11
HerePunchy
A paper plugin to handle automated combat with support for Auraskills
Aegis Combat
Stop combat leavers! Automatically drops player loot on logout during combat and prevents command abuse.
CombatListener
Prevents combat logging with cooldowns, action bar timer, command blocking and customizable combat rules.
Toasts Abilities
A data pack that adds 7 different custom classes, each with a ability, ultimate and a passive to improve combat. They are: Wind, Electric, Space, Sculk, Life, Metal and Oceanic
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.
CombatTier TierTagger
TierTagger mod for Combat Tier List
Kinetix+
An smp plugin which adds orgins, combat based currency, and quality of life additions. Originally known as UltimateSMP, but dropped for a more original name.
JAAM (Just Another Ambiance Modpack)
A curated mix of action, movement, and animation mods that bring Minecraft to life with fluid gameplay and immersive mechanics.
merchantmind
An AI-powered shopkeeper mod with a rotating catalog of 11 categories, smart barter trading, bulk-bonus selling, per-world saves, and a Charge & Slam combat mechanic — made entirely with AI assistance.
HereRolePlay
A Paper plugin that enhances the game experience with Combat, Collection and Crafting experience to unlock and increase stats, classes, skills and passive bonuses.
BlueArchive Types
a plugin brings the type table in Blue Archive into minecraft combat
CombatLogPy
Combatlog causes you to die instantly when you disconnect from the server.Le « combatlog » entraîne votre mort instantanée lorsque vous vous déconnectez du serveur. In Fights
Even Lower Fire
A PVP mechanism where fire is lower.
Aegis anticheat
This project adds a hybrid anti cheat system with async packet analysis, Folia support, and physics-based detection for combat, movement, and packet exploits.

TOOLS TEXTURES POWERS
TOOLS TEXTURE POWERS: Unleash the Chaos Are you ready to transcend the ordinary? Step into a realm where Minecraft’s standard arsenal is a distant memory. TOOLS TEXTURE POWERS is an overhaul mod that tears down the limits of combat
Lost Saga Craft
A fanmade combat mod bringing Lost Saga items, gears, and mechanics.
fgrf's throwing stones
A simple plugin that adds throwable stones for unique PvP combat on your Minecraft server
AntiLungeCombat
Prevents the Lunge Spear enchantment from working while in Combat with another player
SlayAlarm
Minecraft Alarm Plugin with Combat Log and Ban Duration
simplecombatguard
This project adds combat tagging that blocks /home, /spawn, and other teleport commands during PvP, with a relog-proof cooldown timer.
MCReiche-nations
A community-made Paper gamemode inspired by the Minecraft Nations project, featuring teams, lives, combat logging, bananas and elimination mechanics.

Lost Tales
A Datapack that adds overworld exploration and new items for combat. This datapack is designed to be used on servers, however it can be used in solo play.
Arcane Arsenal: Enchanted Combat
A mod that adds magical enchantments and skills to the game
BackguardAegis
Overhauls shield combat by adding a 360° omnidirectional "Ultra Shield" mechanic with dynamic shockwaves, aggressive projectile deflection, and custom enchantments.
ParrySystem | Advanced Combat & Projectile Reflection
Parry mechanic for skill based PvP
ESS: Requiem Better Combat Compat
This mod/datapack adds compatibility between ESS:Requiem and Better Combat
Simple Illegal Blocker
Just blocks bad words, runs command when combat logging, disables commands when in combat.