Minecraft Java 1.21 Mods
Browse 64 free mods for Minecraft Java 1.21 — popular picks include ATMIL - All The Mods I Love, Nuclear Warfare Weaponry, BounceCraft: ModernConflict.
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ATMIL - All The Mods I Love
A mix of all the great and underrated mods, contain various weapons and bosses. Basically an RPG modpack.
Nuclear Warfare Weaponry
adds nukes, thermonuclear bombs, and ballistic missiles
BounceCraft: ModernConflict
Modern technical survival with industries, weapons, vehicles, and advanced warfare. Automate, dominate the world, face creepy creatures, and live in a technologically advanced society ruled by nations.
Trademarked
A modpack with tech and guns, ripe for an industrial revolution to take place. (Designed for the TaW modded server)

Coastline
Coastline is a collection of mods designed to improve exploration. Craft planes, sail ships, rest in hammocks, and more.
MilitaryArsenal
A military weapons addon for Slimefun4 featuring advanced weaponry, ammunition systems, and coordinate-based bombardment capabilities.
Crafting Blades | ModernisM
a Modern, Gung Ho Minecraft experience, make a NUCLEAR REACTOR in Minecraft? Give it a try.
Razen's Tension Weaponary
New Tension based weapons to spice up minecraft combat
War of Valor: WW1 Mod
WWI (First World War) Mod. With customized 3D WWI Blocks, 3D Weapons and Uniforms. Along with other WW1 Themes such as trench life and a lot of barbed wire and sandbags. Along with a proning mechanic.
Ocolet909's Modpack
A mod for me and my friends, first time here. The mod contains food mods such as farmers delight, some weapon mods that add realistic rifles, 1 mod that adds simple tiers, and alot of performance mods to keep it running on school laptops.
UniversalX CB
A power focused modpack packed with QOL features, bosses, and armor and weapons to battle them. While also maintaining 100+ FPS (new version coming soon)
Guns, Wyrms, and Steam
A Create Aeronautics modpack that makes adventuring a challenge. The End floats high above, while ruins and settlements are spread far and thin. The only way to reach them is to Create.
Killers
This Is A Manhunt Modpack... It Has A Ton Of Structures, Create Mod, Guns,Create Aeronautics, More
New Guns Plugin | DuckShot Advanced Firearms & Combat Items
Create mod-level firearms, explosives, gadgets, deployables, and complete combat systems.

GlowSense
This mod provides real-time visual cues for combat, tools, and survival, highlighting the best weapon, tool, or food based on the situation to make gameplay more intuitive and responsive.
Ranium Client Mod (1.21.1) – God Mode Donut SMP PvP
Ranium Client Mod is a PvP-focused utility client with many automation, combat, and server-specific modules. It is especially optimized for Crystal PvP and Donut SMP gameplay. Features: Crystal – Crystal PvP and anchor automation Combat – Combat enhancements and weapon swaps Donut – Donut SMP utilities and automation tools Render – Visual overlays, ESP, and […]
Ballista Mod (1.21.1, 1.20.1) – Lay Siege to Enemy Forts
Ballista Mod adds siege engines to your Minecraft world, starting with the powerful ballista. You can build, control, and fire this large weapon to hit targets from a long distance. To manage your new war machine, you will need to use the Engineer's Hammer. Features: Adds a functional ballista, a siege engine for long-range combat. […]
Superb Warfare Mod (1.21.1, 1.20.1) – Battles with Guns, Cannons, and War Machines
Superb Warfare Mod adds all kinds of guns, big cannons, and powerful war vehicles. It lets players drive tanks, fly helicopters, and more to take over the fight. The mod also has a perk system that makes weapons better by boosting things like how fast they shoot or how much damage they do. Features: Smooth […]
Mekanism: Weapons Mod (1.21.1, 1.20.1) – Gear Up for Tech-Powered Combat
Forget wooden swords and diamond shovels, Mekanism Weapons inject a dose of high-tech firepower into your Minecraft experience! This addon to the popular Mekanism mod introduces two fearsome weapons, each oozing with the signature "Meka" aesthetic. Prepare to ditch the primitive and embrace the future of combat! Dive into Mekanism Weapons and discover a whole […]
The Last Days
It´s an apocalyptic gun pack
Air Strike Warfare
Air Strike Warfare adds a laser designator for calling in air strikes. Aim through a tactical HUD with zoom to mark a target, choose a missile strike or an A-10 gun run, then the strike hits it with explosions, shockwaves, and camera shake.
McheliRecent
Mod 1.21.1 Neoforge for military equipment Minecraft. Мод 1.21.1 Neoforge на военную технику майнкрафт.
RustyCraft - Multiplayer Only
Fully multiplayer, proximity voice chat & text chat, firearms, technology, no join/leave messages, and the player list and player count are hidden
FMGII German Pack Mod (1.21.1, 1.20.1) – Defend Your Base with Heavy WWII
FMGII German Pack Mod adds classic World War II weapons for Fel's Machine Guns II. This addon brings heavy firepower to your game while keeping the main mod organized. You can craft and fire historical guns to defend your base or fight tough enemies. Features: Heavy Machine Guns: Adds the MG34 and MG42 to give […]
Scorched Guns Neoforged Mod (1.21.1) – Wage War with Heavy Guns and Combat Tanks
Scorched Guns Neoforged Mod ports the popular Scorched Guns 2 content to newer Minecraft versions. It packs in a massive arsenal of firearms, custom ammunition, and combat machines for your world. The mod keeps the original gritty combat alive while running on modern game versions. You can gear up with powerful ExoSuit armor, build defense […]
Hundred Years Warfare Mod (1.21.1, 1.20.1) – Archers, Cavalry, and Siege Machines
Hundred Years Warfare Mod adds real-time strategy battles, turning the world into a warzone where you can take charge of your own army. You can build groups of soldiers, use powerful siege weapons, and control how troops move and fight. Each type of soldier acts differently, and you can give them orders in several ways. […]
Plutora Client Mod (1.21.11) – Dominate PvP with Automated Crystal Combat
Plutora Client Mod gives you a massive advantage in modern player-versus-player fights. This client focuses heavily on crystal combat and the new mace weapons. You get a clean, modern menu packed with tools to automate your attacks and defense. The visual upgrades make it easy to spot enemies through walls and track your hits. Features: […]
Vegeance Client Mod (1.21.11) – Unlock Unstoppable Power in Every Battle
Vegeance Client Mod is a Minecraft PvP client focused on combat automation and combat optimization. The client provides various PvP modules such as Auto Crystal, smart weapon swapping, auto potion, and tools for optimizing crystal combat. It helps players improve combat efficiency, react faster, and maximize damage output in PvP. Features: Auto Crystal: Automatically places […]