Minecraft Java 1.21 Mods
Browse 849 free mods for Minecraft Java 1.21 — popular picks include Mobs Drop Their Abilities, Vanilla Plus by TheW4NT, Simple Saddle and Leash.
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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.
Vanilla Plus by TheW4NT
This is a modpack that adds and alters mechanics and structures from vanilla Minecraft, making survival more challenging and offering a world with a wider range of exploration without being excessive.
Simple Saddle and Leash
A simple datapack for crafting a saddle and leash in survival.
One Block To End All One Blocks
Quest-driven one block survival for Fabric 1.21.4. Break your block, earn drops, complete quests, advance through 6 phases. Multiplayer-ready with team islands and bridge merging. Requires Fabric API.
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?
StarNav:Celestial Navigation
Realistic hardcore world navigation
YVtils Regions
YVtils Regions is a plugin for survival servers that allows players to create and manage their own regions. It supports customizable flags with global or role-based permission levels for fine-grained control.
SMPEnhanced+
A comprehensive plugin built for survival multiplayer servers that want fine-grained control over combat balance, limits, and quality-of-life improvements which are all configurable in-game.
Evergrowth
This mod overhauls and extends existing Minecraft features, improving core systems and mechanics to create a more advanced and engaging survival experience.
Hardcore Death
A paper plugin which deletes a player inventory upon death
Apex Plugin
Apex SMP is a Minecraft plugin that adds 9 unique classes, each with their own abilities, strengths, and weaknesses. Players can craft and unlock powerful Apex Classes, creating new strategies for PvP and survival. Designed for SMP servers, Apex SMP makes
Drop & Grow
Automatically plants dropped saplings. A great quality-of-life feature for clean inventories and farm automation that fits perfectly into vanilla survival
EZClaims
A lightweight land-claiming plugin for survival/SMP servers that lets players quickly protect their builds while giving admins full control through flexible settings.
FirmaLifeHardCore
A mod that completely overhauls Firmalife's cellar and greenhouse mechanics — no Climate Station required. Enclosed spaces are auto-detected via BFS floodfill with dynamic AABB tracking. Any insulating blocks form a functional cellar or greenhouse.
HomesGUI-Plugin
A simple and clean Homes GUI plugin for survival servers.
Ashen World
A Fallout-inspired survival mod for NeoForge that introduces radiation, mutations, contaminated environments, chem crafting, and dangerous evolutionary changes to your Minecraft world.
BIG Challenges
BIGChallenges: The Ultimate Survival Test 💀
EntropyMod
EtiesChallengesMod is a small but powerful Fabric mod that makes your Minecraft experience more challenging with unpredictable challenges. Perfect for making your survival world more difficult and starting a fun speedrun with friends or alone.
xApocalypse
A brutal, customizable zombie apocalypse plugin for survival servers
Simple Lore
Allows to change an item description in survival mode
GreatCompactors
Plugin for Personal Compactors from Hypixel Skyblock
BlockHardness | Custom Block Breaking Mechanics
Hypixel Skyblock inspired block breaking system
/show plugin
A plugin that allows players to do /show and it will show the item they were holding in chat like the skyblock command.
Block4Block Plugin - Game Mode
(Required Plugin) Survival mode with a unique cost to breaking blocks.
Spatial Relics
Adds a collection of spatial relics that complement vanilla mechanics and enhance the survival experience.
Vitality Overhaul
A survival overhaul that slows hunger drain, replaces sprint stamina with the oxygen bar, and ties health regeneration to your food level.
A Hardcore Plus Plugin
A Plugin that enhances the Minecraft hardcore gamemode.
Rotwire
A Zombie Survival take on Minecraft with infested cities. Establish a radio connection with the survivors to maintain your ammunition and resource supply. Migrate from town to town as their difficulty scales with your activity within each of them.
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!
Bone Block Shortcut
Make Bone Blocks directly from Bones
Minecraft But There Are RPG's
Five rocket launchers. One mission. Maximum destruction. Craft your way from a humble iron tube to a reality-warping Neon Launcher — fully survival-friendly, fully explosive.
Voidblock's Better Hardcore
This Minecraft plugin adds a ban on death and localized chat
Cristalline
This mod add an all new mechanic to ametyst by giving the opportunity to grow electricity powered crystals and make new items for survival.
WT SkyGrid
A modern Sky Grid world generation mod for Minecraft 1.21.X where blocks are placed in a 3D grid pattern, floating in the void. Every block is random — ores, wood, lava, chests, spawners — making for a unique survival challenge where every block counts.
Advanced Redstone Expansion
Advanced Redstone Expansion adds sleek, survival-balanced redstone blocks, wireless quantum channels, configurable timers, smart filtering hoppers, and optional omni-directional redstone dust output.
Soundheads
Play every Minecraft sound with Note Blocks in survival mode