Minecraft Java 1.21 Mods
Browse 411 free mods for Minecraft Java 1.21 — popular picks include Hard Worlds, Simple Egg Spawn Recipe [MOD], Hammer-On.
Updated daily
Hard Worlds
A plugin for survival servers
![Simple Egg Spawn Recipe [MOD]](https://pub-2ae937f770284535a96c3330f91236aa.r2.dev/thumb/modrinth/290549.webp)
Simple Egg Spawn Recipe [MOD]
Designed to expand survival progression by making every spawn egg obtainable through crafting rather than relying on creative mode or commands.
Hammer-On
Anvils can now take damage from falling one block. Made for balancing carpet extra's renewableSand.
Hunter And Hunted
Hunter and Hunted makes mobs smarter and deadlier—creepers ambush from cover, skeletons kite you, and Endermen silently stalk if you stare too long. It’s a lightweight plugin that turns survival into a true predator-versus-prey experience.
CraftStands
A Crafting Focused Armor Stand Datapack focused on Survival, Limited, but unique Armor Stands. Unique functionality with special item based animations & commands!
Randomium Skyblock
A faithful recreation of Torchy's challenge: Minecraft Skyblock, but EVERY single block broken and mob killed drops a completely random item!
Spider Drops OP Loot
Turn spiders into an overpowered loot source for intense and rewarding survival combat.
Better Reimagined
Enjoy this survival experience in an epic and immersive adventure. It introduces new mechanics that enrich gameplay with dynamic combat, while vibrant new biomes and impressive structures encourage exploration with unique and challenging mobs
Easy Spawn Eggs
The Fastest way to craft Spawn Eggs in Survival Minecraft.
UBS_PVP+
UBS PVP is a high performance Fabric modpack optimized for competitive PvP and multiplayer Survival featuring extreme FPS boosts network optimization and clean combat visual advantages
Ancient Horizons:Legends of the Abyss
Ancient Horizons:Legends of the Abyss is a survival-adventure modpack that expands Minecraft with new dimensions, terrifying monsters, rich farming, and wildlife. Explore, fight, and build in a redefined world.
No Mob SFX
In case you want an extra hardcore challenge, this pack removes all sounds from vanilla mobs. Mwhahahahaha!
SpaceFrog's Frog Variant Changer
Change a frog's variant type using a vanilla/survival-friendly method. Works with vanilla (cold, temperate, warm) and optionally 'More Frogs 2' variants: crimson, ender, infernal, poison dart, purpur, sculk, spirit, warped, and wood.
Wound & Bleeding
Wound & Bleeding adds a realistic injury system where players and mobs can bleed from combat, losing health over time unless treated with craftable bandages. It enhances tactical gameplay in PvP and survival by making every hit potentially deadly.
Crystal Gacha
Add the gacha from ARK: Survival Evolved
Compostable
Survival friendly plugin that makes more things usable for the composter block, like rotten flesh and fish!
Mobs Drop Their Abilities
Defeat mobs and steal their powers! Unlock unique passive abilities like flight and teleportation, or use active items like the explosive Detonator. Transform your survival experience by using the monsters' own strengths against them.
Blocks spawn mobs
This plugin turns harmless digging into hardcore survival – for every broken block, the world responds with a fierce invasion of hostile creatures. Are you ready for endless waves of darkness, or will you fall under the onslaught of monsters?
Evergrowth
This mod overhauls and extends existing Minecraft features, improving core systems and mechanics to create a more advanced and engaging survival experience.
xApocalypse
A brutal, customizable zombie apocalypse plugin for survival servers
Ghastling
Ghastling is a survival-friendly plugin for Paper 1.21.6+ that lets players keep Baby Happy Ghasts (Ghastlings) as permanent pets. Prevent them from growing up, improve their AI, and build a bond through snowball interactions!
Trade Less
This data pack stops all villagers from selling emeralds Perfect for servers with a tight economy or a more challenging survival experience
just chill
It's a laid-back survival game with friendly mobs—no enemies, just you and the game's soundtrack
Skylife
A Skyblock with the goal to make everything different (at least a bit)
Enhanced Spawners: Chambers of Control
Enhanced Spawners: Chambers of Control lets players upgrade and customize mob spawners using survival items, with full redstone control and spawn egg integration — all without commands or GUIs. Designed for clean, technical mob farms and dungeon systems.
Harrowing Hells (Data Pack)
[NOW SURVIVAL SUMMONABLE] Adds the Cinderscourge, a highly developed boss entity with a diverse arsenal of attacks at its disposal. Usable in mob battles.
Waffled
This is a skyblock-style mod, but with waffles!
Custom Hyperion
This project adds a Hyperion concept, just very different and survival friendly (not OP)...
Scalable Mobs
A survival data pack that allows players to change the scale of passive mobs for decorative purposes.
More Actions: squid tentacles
This mod adds something that was sorely missing in vanilla survival: tentacles that drop from squids. Now, instead of useless ink sacs, you can get useful and nutritious food. Squids are no longer such a useless mob!
SYSTEM SMP
System SMP is a premium Minecraft plugin designed for survival multiplayer servers. It adds unique features including small caps text formatting, tree felling mechanics, custom item displays, and an economy-based spawner mining system.
Super Hardcore
A datapack that makes hardcore actually hard. You now only have 5 hearts and you take damage from a fall taller than 2 blocks.
Tithe
A Hardcore multiplayer mod in which death is a debt. The living can pay a tribute to bring back the fallen.
Mitos Argentinos
A survival and adventure mod that brings the myths and legends of Argentine folklore to your Minecraft world. / Un mod de supervivencia y aventura que trae los mitos del folclore argentino.
Player Detector
Redstone block that detects if a player is standing on it
Time Hunter
Time Hunter is a team PvP survival datapack where players compete by mining resources and eliminating foes to extend their countdown, with elimination on timeout, supporting 2-4 team battles and strategic combat.