Minecraft Java 1.21 Mods
Browse 131 free mods for Minecraft Java 1.21 — popular picks include FTB Skies 2, Skyblock Infinite, OneBlock 1.21.11 (Mounts of Mayhem).
Updated daily
FTB Skies 2
Our skyblock experience built for Minecraft 1.21.1 with a focus on rewarding gameplay, custom mechanics, and player-driven progression!
Skyblock Infinite
Skyblock for any seed with Infinite void generation.
OneBlock 1.21.11 (Mounts of Mayhem)
Since 2022 | OneBlock is a adventure map with alot of Fun. | 1.21.11 | Mounts of Mayhem is Live! | [Continuation of IJAMinecraft's Oneblock!] | {This is a Datapack of OneBlock Reborn Map.}
Self-Sustainable
Real survival, scarcity, very rewarding. Are you ready?
Better With Time: HC Tweaks
An add-on for the BWT mod which changes some features to be more "hardcore".
EnviroMine Lite
EnviroMine is all about environmental realism whether it be clean air or even keeping a sane mind in Mincraft’s labyrinth of dark caves, it will test your survival skills and endurance.
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.
Fetchr Bingo
A survival Minecraft item Bingo game - Try to get items quickly starting in a fresh world
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.
Fixed
A mod designed to fix the core gameplay elements of Survival Minecraft
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.
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".
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.
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.
Creativerse
Survival and Creative mode dimensions in the same world!
Server Optimiser V2
Smart server optimization with optional TPS control. Reduce RAM usage 25%. Perfect for survival/skyblock servers. Entity optimization, chunk management, system monitoring.
Skyblock Dimension
Adds a skyblock dimension that features custom crafting and loot tables
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.
Catacraft
Transforming the familiar landscapes of Minecraft into a hauntingly beautiful and treacherous wasteland, this data pack offers players a gripping post-apocalyptic survival experience.
OneBlock CraftBound: Classic
A custom NeoForge OneBlock mod with phases, rewards, chests, mobs, and a true one-block start.
Aeternum Seasons
A dynamic and realistic station system for Minecraft Survival. Eng & Esp | Plug & Play
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
Backrooms: The Complex
A survival friendly, lore accurate backrooms mod with high quality visuals.
Draventh Ores
⚒ Advanced Tier Ores & Equipment This mod expands Minecraft’s survival progression by introducing 15 new late-game materials, each with full armor and tool sets. The goal of this mod is simple: Extend progression beyond Diamond and Netherite with a struc
Survival Not Guaranteed
Dive into an expansive Minecraft modpack that blends challenging survival mechanics like temperature and thirst with extensive exploration of overhauled dungeons and new biomes, all while offering dynamic combat, magical mastery, and complex automation.
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.
Infinite Stronghold
Ever thought strongholds should be the only structure? With this datapack, they can be! This datapack makes the world out of exclusively strongholds, like skyblock, but with strongholds instead of an island.
ZenXArch's Skyblock
An expanded skyblock challenge
Designer Pack
Design your builds directly inside your survival world without interference
Deepcraft
A hardcore Minecraft mod with new ore, weapons, bosses, mobs, a unique dimension, haunting music, and forgotten secrets waiting to be uncovered.
Everything from Nothing
A 1.21.11 Expert Skyblock experience built entirely around vanilla mechanics, enhanced only with light QoL & performance mods.
Disable Structures by choice
This Datapack was originally designed for Skyblock_infinit to be able to disable specific structures by choice
TerrariaCraft (NeoForge)
A Minecraft modpack that brings Terraria’s unique items, mechanics, and enemies into the Minecraft world.