Minecraft Java 1.21 Mods
Browse 856 free mods for Minecraft Java 1.21 — popular picks include Sky Blox, JoaCarpet, Copper Chunk Loader.
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Sky Blox
The Sky Blox datapack is a brand new way to play Skyblock. It features a custom advancement tree that guides you through the content, as well as loads of new gameplay mechanics to allow you to obtain and automate nearly any material in the game.
JoaCarpet
A small carpet extension mod with useful features for redstone and storage tech (+some minor survival tweaks)
Copper Chunk Loader
Chunk Loader data pack friendly for vanilla survival. More uses for copper!
Fetchr Bingo
A survival Minecraft item Bingo game - Try to get items quickly starting in a fresh world
ChunkBound
Survive and grow starting from a single locked chunk. Expand your world one chunk at a time, unlock new mechanics, and build a compact but powerful base. ChunkBound is a progression-focused survival pack where every block matters.
Half-Heart Hardcore
mod that makes all worlds hardcore and gives the player half-a-heart max health
Half Heart Hardcore
Half Heart Hardcore (or 1HP Challenge, alternatively) is a multiplayer challenge datapack, aimed at making the game almost impossible.
Lifesteal+VoiceChat
Well known lifesteal Mechanics with a addition of Simple voice chat.
Survival Freecam
This Data Pack Allows You To Go Into Spectator Mode In Survival But When You Go Back Into Survival You'll Be Right Where You First Became A Spectator Meaning You Can't Just Go Into Spectator And Travel 500 Blocks And Stay There. Basically a Freecam.
Worldly
Worldly adds a collection of configurable Minecraft world types, from classic Skyblock and OneBlock to Chunklock, Backrooms, Random Drops, Mountaineering, Fishing Border, and more.
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.
TreeCuter
Chop down entire trees with a single swing and streamline resource gathering. A simple quality-of-life feature that makes survival more enjoyable for players.
The Skies of Newstone Hollow
A tech based Minecraft skyblock with unique resource generation mechanics.
Fixed
A mod designed to fix the core gameplay elements of Survival Minecraft
Overeating
Adds overeating and new useful mechanics for survival and combat!
ForgeCraft - Equipment Extension
Inspired by Hypixel Skyblock Reforge System. Upgrade your equipments and enhance the progression! Customizable Vanilla Item stats......
Skyllia
Skyblock Plugin for Folia and PaperMC
Expanded Weather2 Dynamics
Expanded Weather2 Dynamics is a NeoForge 1.21.1 addon for Weather2 that adds deeper tornado dynamics, radar tools, SPC-style outlooks, fictional TOR/SVR alerts, damage surveys, and survival-friendly storm damage.
Disasters Cataclysm
Disasters Cataclysm is a global disaster mod for Minecraft (Fabric) that turns survival into a real challenge. The world is no longer safe: the elements can strike at any moment, but they do it beautifully and naturally.
Vanilla But Wrong
Vanilla but wrong is a Fabric psychological horror mod for singleplayer and multiplayer. One shared sanity system, adaptive Director events, trauma progression, and UI/audio corruption turn normal survival into a tense mind game.
Effortless Building: Sophisticated
Advanced building QoL mod with mirror/array/shape modes, expanded reach, per-axis placement limits, backpack-based building upgrades, compact HUD counts, and clear missing-item feedback for survival building.
TNT Logic - Realistic Explosion Physics
Explosions now trigger realistic, block-by-block structural collapses. Watch entire buildings crumble - one block at a time.
VeinPulse
Ores briefly pulse with light when you mine adjacent stone blocks, revealing hidden mineral deposits nearby. The pulse intensity varies based on ore rarity.
Mr_ChibisMMO
Survival based MMO for players to have fun in either (Singleplayer, Multiplayer, or Modded) skills such as, "Agility", "Attack", "Cooking", "Defense", "Excavation", "Fishing", "Hitpoints", "Hunter", "Magic", "Mining" & "Commands/Custom World Gen loot".
Available Reinforced Deepslate
In survival mode, it can be available by mining reinforced deepslate with the Netherite Pickaxe. 在生存模式下，可以透過獄髓鎬挖掘強化深版岩獲得。
NeoForge1.21.1
Players start in a familiar Minecraft world but quickly encounter enriched content that expands survival mechanics without enforcing a rigid quest line. The pack encourages creative survival, strategic progression, and long-term world engagement.
Attrition: death reduces max health
A cozy middle ground between classic survival and hardcore.
Carpet NPC's
This plugin adds the command /summonnpc (name) to summon a npc of any player in survival
Create Simulated: End Sea Everywhere
Bare bones datapack that adds the End Sea from create simulated to other dimensions. Useful for Skyblock style modpacks.
Quick UndyingRefill
Automatically replaces your used Totem of Undying — first from your inventory, then from any shulker box that contains one. A must-have for every hardcore enjoyer.
Nice Villager Type Changer
An easy to use and survival friendly way to change a villagers type
Excavating Enchant: 3x3 Mining!
New enchant for pickaxes and shovels that lets you mine 3x3x3 areas! Perfect for survival servers and very vanilla friendly.
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.
Flight Mod
Fabric mod that adds hunger-based flight for survival or client only creative flight tweaks
Naturalis - Realistic Remorphed
RP Survival morph progression for ReMorphed: Knowledge XP, instincts, Resonance bonding, Humanity, and body-specific mechanics.