Minecraft Java 1.21 Mods
Browse 558 free mods for Minecraft Java 1.21 — popular picks include EffectsPLUS, Totem of Undying Franky, Cleaving Enchantment.
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EffectsPLUS
An SMP Plugin where each player upon joining gets assigned an effect with different rarities. Effects are bound to a player until death or rerolled/withdrawn. Includes a bounty system and a chaos mode adding rewards for combat and adds dynamic gameplay.
Totem of Undying Franky
Super! Franky brings tech power and iron fists to your inventory. This totem stands strong with mechanical might and personality.

Cleaving Enchantment
Adds the Cleaving Enchantment from the Java edition Combat Snapshots!
Raft's Combat
An attempt at eliminating pixel-hunting by improving the horizontal reach of the player when attacking
Art Astral Skills
This modification adds a player leveling system thanks to the constellations.It consists of 4 constellations to improve the player - Mining, Combat, Life and Global
Over the Top
Aims to bring World War One era Trench Warfare to Minecraft
NocturneSlayer
NocturneSlayer is a Minecraft plugin that adds immersive combat mechanics, progression systems, and dark fantasy gameplay elements.
BetterReborn
It brings many features, structures, and mechanics to Minecraft.
ReCombat
Adds in new variants of Minecraft's weapons to provide a richer combat experience.
BGMCraft
Play minecraft with background music, Different music for biomes and structures, Combat music, Extremely easily editable.
Stop_PvP
A professional anti-relog system that blocks commands and punishes quitting during combat.
[Discontinued] Farmy
Advanced Farming Overhaul with Skills, Gear, Pets, and much more
Seamless Survival Overhaul
A modpack designed to enhance and deepen the survival experience, adding new challenges, mechanics, and immersive features.
CombatMetrics
A minecraft plugin that shows your combo nd crit counter in a row and it resets if u can't in a row which will help improve u with combo and crit chains....
Joyedcombat
JoyedCombat is a customizable combat-tag plugin that tracks players individually, prevents combat logging

Armour, be gone!
Ever thought the combat is too easy? Make it actually sorta kind of difficult by removing easy access to most armour (and other things)!
Combat Care
A client-side survival helper that automates smart food consumption, emergency Gapple usage, and safe offhand totem refills
Omnia
This project adds a massive, carefully curated 350+ mod experience. Omnia combines next-gen aesthetics (Distant Horizons, Shaders), deep farming/building mechanics, and epic exploration into one uncompromising, hardware-hungry sandbox.
Heavylytras
Heavylytras disables the elytra if you wear netherite, discouraging use in combat.
Thijns Combat Tweaks
A Minecraft plugin that enhances combat mechanics with crossbow rockets, tipped arrows, and splash p
Potion of Combat Log
Combat logging is now a feature, so it's not cheating!
Elytra Combat Nerf
Elytra escape during PVP is restricted.

Bouncing Projectiles(PBOSB for Fabric)
Projectiles now bounce off slime blocks, adding new mechanics for combat and traps.
The Craft Combat (Ibai's Velada VI)
A fast-paced Minecraft boxing tournament inspired by La Velada of Ibai Llanos, featuring custom fighters, special abilities, multiplayer support, and a final showdown against Ibai Llanos.
Helper Robot Totem
Transforms the Totem of Undying into a futuristic Helper Robot with a custom texture and name!
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,
CombatFly Control
Advanced combat flight management. Overrides WorldGuard & EssentialsX to prevent fly-abuse in PvP with smart Mace detection.
Attack Particles
A Minecraft Mod.Laggy visually cluttered combat particles 😂 AI coded, open source.
PetLeveler
Level up your tamed wolves. Dogs gain XP from combat, grow stronger, and unlock unique abilities like Splash Bite, Fire Resistance, and Lifesteal
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.
CountryWar
Inspired by SharpnessMc, A comprehensive team-based country war plugin for Minecraft servers. Features include dynamic health scaling for leaders, territory protection, supply drops, voting systems, and more!
Triple Life
A combat minigame inspired by Grian's Third Life and other Life series with some of my own features and ideas.

PILLAGER ARMY
This mod adds new creatures, a new interface, and even magic. It also improves raids, making them more complex.
PeaceSMP
A server-driven alignment mod introducing an advanced Karma tracking system, and game-changing combat abilities for survival multiplayer.

Casual Combat without Cause
An open-ended Hoplite-inspired PvP mod
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