Minecraft Java 1.21 Mods
Browse 82 free mods for Minecraft Java 1.21 — popular picks include Hundred Years Warfare, BetterHitSounds, Spears, Axes, Swords, Shields, And Other Tools (SASSOT).
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Hundred Years Warfare
NPC-based combat and production gameplay, multiple control methods including RTS mode, special compatibility and integration with various mods, with future plans to expand into structures, management, RPG mechanics, and more.
BetterHitSounds
BetterHitSounds is a client-side Minecraft mod that adds immersive hit sounds for players and mobs, complete with combo chains, distance-based volume, and customizable sound packs for a more satisfying combat experience.

Spears, Axes, Swords, Shields, And Other Tools (SASSOT)
A vanilla-style mod that adds Spears, expands on Shields, and reworks melee combat & mining tools.
PlayerProgress
PlayerProgress is a Minecraft datapack that introduces a leveling system. Earn UP from activities like mining and combat to level up and gain new abilities and rewards.
Redstone Crusaders TURBO !
A Jojo's Bizarre Adventure mod. Starring Stands with pushed combat and combo potential !
Longshot
Upgrade your ranged combat with enhanced projectile velocity! The archer's 'Strength' potion effect
Combat Expansion V4 REWRITTEN
This mod adds new weapons, tools, mobs, mechanics and much more, while maintaining the vanilla style of play and compatibility with other mods.
Epic RPG: Loot Sentinel
Blocks chest interaction when hostile mobs are nearby and targeting the player, enforcing combat before looting.

Valiance
A different take on Minecraft's combat, prioritizing difficulty, variety, and customization
Combat Expansion
Adds a whole new collection of weapons, armor, and enchantments for PvP
Mob/Monster-army battle
Fight against killed mobs (Fun Game)
More Copper Golems
Introducing... More Copper Golems! A Datapack that adds a glorious army of slightly-confused-but-totally-enthusiastic copper buddies to protect your domain.
Mecha Soldier PLASTAR
Tiny Mecha Mod!
DayCraft REVAMPED
DayCraft is made for everyone. Structures, mobs, and new mechanics will come to your world.
Better Mob Combat - Reimagined
An add-on mod to Better Combat that allows it to work with (humanoid) mobs.
Military NPC and unique weapons
This mod adds two unique military NPCs, each with their own new weapons and distinct mechanics, offering fresh combat challenges and gameplay variety.
Geode Mania
Adds 2 new dimensions, new combat mechanics, 4 new ore types, and a heavy emphasis on Copper and Amethyst!
Better Mob Combat Neo
a unoffical port of the mod Better Mob Combat
[SimplePetsAddon] PvP Addon
Checks for when the owner of a pet is in combat and will remove all their current pets
DZEconomy
A practical multi-currency economy plugin for Paper, Spigot, Folia, and Purpur with Money, MobCoins, Gems, LuckPerms multipliers, combat tagging, and SQLite/MySQL storage.
Dominatus : Refinement
Aim for more RPG like with RNG and improve a combat implementation Monster Crit System
No attack time delay
Reverts combat system to pre-1.9. Supports 1.21.3
MobPVP // CANCELLED
MobPVP transforms your Minecraft survival experience by assigning levels to every living creature in the game. Based on these levels, mobs gain different abilities, attributes, and loot chances, creating a more challenging and rewarding combat system.
Paper Fight Bot
The most advanced combat bot for Paper Servers.
Mob HeadSteal SMP
Collect player heads on kill and unlock powerful abilities using custom mob heads in intense PvP combat.

Aetherium Items
Adds magical scrolls that grant unique abilities to weapons, turning ordinary gear into powerful tools of combat, mobility, and control.
Minecraft Extra
A Minecraft mod that upgrades the combat and farming systems and adds some other handy features to make your life better.
SpaceFrog's Hungry Hungry Frogs
Frogs extra hungry & extra powerful: Frogs can eat all hostile vanilla mobs, and the elusive, immortal, insatiable ÜberFrog will one-shot kill any hostile! Build a frog army today!
MetinStyle Mods
A mod inspired by classic MMORPG gameplay, bringing new combat mechanics, items, and progression systems into a voxel-style world.
True Combat
A Souls-Like 1.21.13 combat datapack
Cobblemon Black&White Battle Music
Adds music from Pokémon Black&White to Cobblemon battles
Shogun's Blast - Undead & TNT
Explore haunted Japanese villages, battle explosive Oni Warlords, and defeat the Council of Leaders in this immersive RPG structure and combat mod.
Player-Level Randomizer
Every time you level up, a random event is triggered, ranging from beneficial loot rains to spawning structures and deadly combat arenas. Taking damage will cost levels..
RuneDelta
150 runes for weapons, armor, shields and tools that spice up combat and exploration
Aerial Combat
Aerial Combat adds a togglable combat mode where attacks hit mobs upward; the player has infinite jumps to increase air time, plus additional combat options.
Evan's Vanilla+ 2
A Vanilla+ Modpack for 1.21! It adds new mob mechanics, new world generation, dungeons, mobs, and items to Minecraft!