Minecraft Java 1.21 Mods
Browse 3,649 free mods for Minecraft Java 1.21 — popular picks include keepinvy, ProgressionRPGMob, NavNeit Engine.
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keepinvy
Flexible inventory saving settings upon death - separately for PvP, mobs, fire, void, and other reasons
ProgressionRPGMob
Custom RPG mob spawner with configurable stats, names, and abilities — place named mobs at fixed locations that respawn automatically after death.
NavNeit Engine
A Minecraft RPG expansion featuring player Stats, Skills, Jobs, and Mob Scaling, designed to make survival more challenging and rewarding.
FishingReal-BetterVannilaFishes
Datapack for FishingReal-BetterVannilaFishes.
RZXPets
RZXPets is a comprehensive companion pet plugin for Minecraft servers that introduces summonable, floating pets to accompany players.
OneTridant
adding a special legendary trident
The Mimic BETA
hi this is my first TRULY custom mod its not a port of ANYTHING lmao, this mod is about a mimic that well.. mimics you or your friends it also stalks you and learns about you although you will need an api from GROQ to work
![KingCraft [FORGE]](https://pub-2ae937f770284535a96c3330f91236aa.r2.dev/thumb/curseforge/417086.webp)
KingCraft [FORGE]
Travel to a different planet? Fight new bosses? Discover new game mechanics? Welcome here.
Mobs Of The Underground
Adds new mobs, items and mechanics to your world!
The Fallen World
This mod adds things like dimensions, blocks, items, mechanics, bosses, mobs, structures and much more!
Super Better Sleep InfinixMc
A Minecraft 1.21.1 mod that redefines sleeping mechanics for multiplayer servers, allowing configurable player thresholds to skip the night with customizable messages and seamless dawn transitions.
Redstone Robot (Fabric/Forge/NeoForge/Quilt)
Redstone robots that recharge with redstone, can follow you, attack hostiles mobs with bows and a iron swords!
Create: Better Blaze Burners
Adds Mechanical Blazes
Robot - MechaFront
This Mod Adds A Good Varity Of Robots Which Helps You In Combat. And Also A Very Good RPG System
PixelTrance
A Minecraft mod that pays homage to the art of hypnosis, blending RPG progression with immersive trance mechanics for both singleplayer and multiplayer.
Duplication Hit
Duplication Hit adds a mechanic where living creatures duplicate when damaged by a player. If the hit is not lethal, the entity instantly undergoes mitosis, creating an identical clone at the same location
What If...
Enhanced Vanilla experience with QoL improvements, new biomes, mobs and dungeons. Quests will help you get through this modpack and some of the new mechanics.
![Sudden Death | Enhance monster abilities | Game mechanics [1.21-1.21.11]](https://pub-2ae937f770284535a96c3330f91236aa.r2.dev/thumb/spiget/90555.webp)
Sudden Death | Enhance monster abilities | Game mechanics [1.21-1.21.11]
Enhance the monster's abilities, survival becomes impossible.
Shield Parry Mod
Add Dark Souls style parry mechanics! Time your shield blocks perfectly to stun enemies for 3 seconds. Skill-based combat for Minecraft 1.21.1
Supercharged Mobs
Adds copper gear and supercharged mechanics
Revengeance
Revengeance adds a extremely hard difficulty to the game, with some features locked by in game events.
Ender Horizon Expand Mod (1.21.8, 1.20.1) – Tame Flying Mounts and Settle
Ender Horizon Expand Mod overhauls the End dimension with new biomes, mobs, ores, and mechanics. It turns the Ender Dragon battle into a much bigger event with fresh lore and a new title screen. You can explore hostile terrain, tame helpful companions, and craft unique tools to survive the dark void. Features: Reworks the Ender […]
Oxidized Aeration Mod (26.2, 1.21.1) – Build Flush Water Elevators
Oxidized Aeration Mod lets bubble column effects from soul sand and magma blocks pass directly through copper grates. Water elevators and downward bubble traps work normally even when copper grates sit above the source blocks. This simple mechanic gives you cleaner floor designs for water tubes, mob grinders, and underwater bases. Features: Lets upward bubble […]
Prism Strike Chronicles Mod (1.21.1) – Pilot Giant Mechas and Fight As Sentai
Prism Strike Chronicles Mod brings decades of Super Sentai heroes, gear, and giant mechas into Minecraft. This mod lets players suit up as classic and modern tokusatsu warriors with custom armor sets, weapons, and special forms. You can collect hundreds of themed items and summon giant robots to fight hostile mobs across your world. Features: […]
Infernal Kinetic Dread Modpack (1.21.1) – Build Machines Survive Horrors
Infernal Kinetic Dread Modpack combines complex mechanical engineering with chilling survival horror to test your nerves. Build huge automated factories and moving contraptions while terrifying monsters stalk you from the dark shadows. Stay alert at all times because dangerous entities like Herobrine watch your every move. Features: Spooky Engineering: Build working machines, gears, and factories […]
Rotational Surface Anchor Mod (1.21.1) – Build and Wield Portable Mechanical
Rotational Surface Anchor Mod adds intuitive mechanical handles that you can operate directly from your own point of view. This mod lets you build portable machinery and player-held tools such as working chainsaws. It provides smooth interaction for mobile contraptions so you can carry and use mechanical gear anywhere in your world. Features: Adds intuitive […]
Arcane Cataclysm Unleashed Mod (1.21.11, 1.21.1) – Cast Elemental Spells
Arcane Cataclysm Unleashed Mod extends Iron's Spells 'n Spellbooks with over 50 spells, elemental grimoires, and gear tailored for tough combat encounters. It introduces the Aqua magic school to control water in battles against powerful mobs. The mod connects spellcasting mechanics with items and challenges from boss-heavy mods like Cataclysm and Born in Chaos. You […]
HazentouveLib Mod (1.21.1) – Cast Multi-School Spells with Ascended Armor
HazentouveLib Mod provides shared magic systems, spell schools, and equipment classes for addon mods. It acts as a core base that adds shared templates for spellcasting mobs, multi-school armor sets, and magical weapons. Other addons rely on this framework to run smoothly and share spell mechanics across different modded worlds. Features: Includes three core spell […]
Relic Power Rising Mod (1.21.1, 1.20.1) – Upgrade Gilded Relics for Combat
Relic Power Rising Mod adds a collection of upgradable artifacts that give you handy tools and special abilities for your survival journey. Each gilded relic brings unique mechanics like extra health, mob teleportation, and attack reflection. You can power up these items through an upgrade system to fit your favorite combat and exploration style. Features: […]
Savage Swarm Unleashed Mod (1.21.1, 1.20.1) – Survive Ruthless Monster Hordes
Savage Swarm Unleashed Mod extends Enhanced Hordes with deeper customization and dangerous group mob mechanics. It gives hostile swarms new ways to hunt players, break through defenses, and work together in packs. You can adjust how hordes act, when their abilities unlock, and which creatures join the hunt through clean settings. Features: Grouped monsters work […]
Oddities and Ends Mod (1.21.1, 1.20.1) – Survive with Teleport Crops
Oddities and Ends Mod introduces a broad variety of handy items, unique mobs, equipment, and world mechanics to spice up your survival world. You can barter with a new villager profession, wield heavy two-handed broadswords, cultivate superkelp ecosystems in ocean reefs, and discover new ore deposits deep across the Nether wastes. The mod brings creative […]
Shatter Point Boot Mod (1.21.1, 1.20.1) – Send Mobs Flying and Smash Walls
Shatter Point Boot Mod equips your character with a dedicated kicking mechanic that sends mobs flying through the air and breaks blocks on impact. It introduces a collection of boot enchantments that boost kick power, trigger explosive collisions, and launch massive shockwaves across your world. Players can charge their kicks by spending hunger, combine multiple […]
Quantum Utility Logic Mod (1.21.8, 1.21.1) – Fly Freely in Survival
Quantum Utility Logic Mod brings back classic utility mechanics, special flight rings, and custom power generation systems for your survival world. This mod adds handy blocks like the Angel Block for effortless building in mid-air, chunk loading devices, and various generators to produce Forge Energy. You can capture mobs with magic lassos or power your […]
Mechanical Mayhem Overdrive Mod (1.21.4, 1.20.1) – Survive Chaotic Events
Mechanical Mayhem Overdrive Mod brings a chaotic mix of giant equipment, unique structures, and wild creatures to Minecraft. The mod adds many gear sizes, ranging from mini weapons to massive tools made from dark matter and antimatter. Players can explore special houses, hunt down rare mob variants, and face challenging survival events. It also includes […]
Databank Mod (1.21.11, 1.21.1) – Add Custom Animations and Giant Multiblock
Databank Mod provides specialized rendering tools, custom model setups, and sound systems for modpacks and custom projects. It acts as a core library built to handle visual effects, multiblock mechanics, and massive world structures. Features: Loads custom post-processing shaders directly into the game. Lets creators add animated models for blocks, items, and mobs with mesh […]
LegendRelicLib Mod (1.21.1, 1.20.1) – Power Custom Slashblade Combos
LegendRelicLib Mod supplies shared tools and reusable code for other mods. It packs in systems for slashblade mechanics, tag setups, and delay timing controls to cut out repetitive background steps. Other mods rely on this library to run their custom weapon actions and timing routines properly in your game. Features: Provides built-in systems for custom […]