Minecraft Java 1.21 Mods
Browse 147 free mods for Minecraft Java 1.21 — popular picks include Create Mechanical Spawner, LevelledMobs, Realistic Survival.
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Create Mechanical Spawner
A mechanical spawner block. Generates Mobs with rotation power.
LevelledMobs
Level-up mobs on your server, RPG-style! Perfect for Survival, Skyblock, and more.
Realistic Survival
A unique plugin inspired by RLCraft that aims to enhance pure survival, adventuring and RPG, and immersion of vanilla Minecraft.
Carpet Minitweaks
An extension for Carpet Mod with many toggleable survival-oriented game mechanic changes
Corner Entity
is an atmospheric horror mod that turns your peaceful Minecraft survival into a nerve-wracking experience. You will never feel truly safe again, as something is watching you from the shadows, waiting for the perfect moment to strike.
TobaccoCraft
A survival mod that adds tobacco farming, processing, and smoking mechanics with risk-based gameplay.

True Survival
True Survival Mode is a comprehensive set of 1.21+ datapack features that aim to overhaul Minecraft's survival mode. It tackles difficulty and progression through means that don't disrupt Minecraft's regular gameplay, while also providing new adventures!
Enhanced Mobs
Makes mobs stronger, tougher, and follow you from over 100 blocks away, perfect for hardcore challenges!

JoaCarpet
A small carpet extension mod with useful features for redstone and storage tech (+some minor survival tweaks)
Better, Faster Happy Ghasts
Configurable speeds for the Happy Ghast, perfect for survival servers!
Mob Wrangler
Ride and control more mobs like the Ravager, Sniffer, Zoglin, Phantom & more! Survival friendly.
Fixed
A mod designed to fix the core gameplay elements of Survival Minecraft
Carpet NPC's
This plugin adds the command /summonnpc (name) to summon a npc of any player in survival
Naturalis - Realistic Remorphed
RP Survival morph progression for ReMorphed: Knowledge XP, instincts, Resonance bonding, Humanity, and body-specific mechanics.
RandomDirtDrops
RandomDirtDrops is a fun Minecraft data pack that makes breaking dirt blocks drop completely random items from the entire game — from diamonds to dragon eggs! Perfect for chaotic survival challenges and OP item speedruns.
Survival Plus
A Minecraft gameplay mod bringing back the danger of survival with new mobs, features and base game changes.
ZombieApocalypse999
Zombie Apocalypse 999 is a comprehensive zombie survival plugin that introduces unique zombie mutations, an evolving threat system, player infection, custom crafting, safezones, and configurable gameplay mechanics.
mc extremo 3 mod
A mod that aims to faithfully recreate the Minecraft Extremo 3 experience from Eufonia and AuronPlay, including hardcore lives, danger levels, PvP, vengeance mechanics, custom HUD elements, and special events.
Pokepuram !
PokéPuram is a feature-rich Cobblemon server blending classic Pokémon mechanics with vanilla Minecraft survival. Battle, catch, trade, and compete in an active community built for both adventurers and competitive trainers.
OneBlock CraftBound: Classic
A custom NeoForge OneBlock mod with phases, rewards, chests, mobs, and a true one-block start.
ZombieApocalypseSSS
ZombieApocalypseSSS is a comprehensive Minecraft plugin that transforms your server into a thrilling zombie survival apocalypse. Featuring advanced zombie AI, evolving variants, player infection mechanics, psychological horror elements, and dynamic events
Classic Combined
This mod creates a Classic Minecraft/Modern Minecraft hybrid experience. Recreates modern features in a Classic Minecraft/Alpha Minecraft style. Fully Survival compatible
Better Left Click
Allows you to use left click bind like normal but not lose out on the competitive and survival advantage of using a keyboard key.
Survival Reimagined (NeoForge)
A Minecraft Mod with the goal of making Minecraft harder with a more realistic approach at progression
ModernMITE
ModernMITE is a fork of MITE Equilibrium — a 1.21.1 port of the classic hardcore survival mod Minecraft Is Too Easy (MITE).
Hardcore Ender Dragon
Datapack that makes the Ender Dragon significantly harder with new attacks and behaviors.
Runechant
This Data Pack is meant as a reimagining of Survival Minecraft adding in a multitude of features to enhance progression and existing content as well as create new content for a Survival Player to explore.
Candid - A True Adventure
Welcome to Candid! This project adds structures, enchantments, and all things catering to a true adventure. It's built as a companion to True Survival Mode, but can be played independently.
Survival Rebalanced
Improves a variety of parts in the survival experience.
Villager Pathfinding Fix
Villager Pathfinding Fix makes villagers smarter, polite, and survival-ready. No more getting stuck on doors, infinite shoving matches, or running in circles when attacked. They now yield to each other, open "glitched" doors, and actively seek Iron Golems
Deepcraft
A hardcore Minecraft mod with new ore, weapons, bosses, mobs, a unique dimension, haunting music, and forgotten secrets waiting to be uncovered.
MC-Themed Powers
Adds special abilities you can unlock in survival Minecraft. Each power is based on Minecraft mobs/biomes.
Theosis
Plugin-ready RPG survival with loot, gems, bosses & biomes. Thesis-style modularity. Multilanguage Apotheosis-inspired
Antideath-Carpet-addition
Antideath-Carpet-addition is a Carpet Mod extension for Fabric Minecraft servers (versions 1.21.x - 26.2) designed to enhance and optimize the game experience. It adds a suite of new loggers for server monitoring and game rules for survival, optimizatio
Shearing Sheeps Drop op loot
Shear a sheep → get insane end-game loot. Works on every version from 1.21 to 1.21.10. Adds custom loot table, and turns sheep into walking OP supply crates. Perfect for chaos survival or challenge world
Mechanical suffering
Modpack with little bit of everything. Create, BetterEnd and BetterNether, Ice & Fire, Born in Chaos, Cataclysm , Mowzies mobs and lot more.