Minecraft Java 1.21 Mods
Browse 3,821 free mods for Minecraft Java 1.21 — popular picks include HardcoreRevivePlugin, Bigger and Better?, Highlight It.
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HardcoreRevivePlugin
Enhances the Hardcore Mode Multiplayer Experience by dropping a dead player's Skull Head that are Used to Revive Players
Bigger and Better?
The mod can change the body shape of any organism in survival mode
Highlight It
A Fabric client-side mod built for Hypixel Skyblock that lets you highlight any mob with a custom color.
Hostility Inverted
Hostility Inverted flips Minecraft roles: passive mobs attack players, hostile mobs act passive, and you can trade/ally with illagers. It also inverts light behavior for a role-reversal survival twist.
Tom's addons
Simple open-source Hypixel skyblock mod
Mr Wildfire's Modpack
A custom tactical survival pack featuring firearms, base defence, beautiful biomes, and vast open cities.
More Recipes: Additional Bone Block Crafting
Craft Bone Blocks straight from Bones.
Inventory Profiles Plus
Inventory Profiles Plus is a client-side Fabric mod for custom inventory layouts, including Crystal PvP, Mace PvP, Sword PvP, Axe PvP, building, mining, and survival setups. Quickly sort items, cycle profiles, and keep gear exactly where you want it.
Compassionate Hardcore
Compassionate Hardcore Mod lets you respawn far away after death instead of losing your world. Keep the challenge, but turn death into a new adventure!
Simple survival crosshair
simple crosshair for survival :)
One Heart Mode
One Heart Mode makes Minecraft brutally challenging: players survive with only 1 heart (2 HP) forever. Perfect for hardcore and survival challenge fans!
Skyblock: Ramadan Edition
A complete Ramadan-themed Skyblock modpack with a custom trader, coin economy, and a ready-to-play world.

Skyblock Reborn
Skyblock Reborn is a meticulously curated mod assembly that redefines the Hypixel Skyblock experience for Minecraft 1.21.10
AlkusiaRP
The modpack is designed to enable communication and interaction with other players on Alkusia."
Crimson Valley
Survival of the fittest
SurvivalWorld Season 2 panorama
This resource pack changes the panorama on the spawn server SurvivalWorld Season 2.
Crazy Colonies
Build, manage and develop your settlement in this collaborative survival adventure!
Burning Daylight
Adds a survival twist to your gameplay with a plugin that causes players to take damage when exposed to sunlight.
Graves PRO
⚡ Grave system for modern survival servers ⚡
Just Another Survival Debug Stick
A simple, lightweight mod that brings debug stick crafting and usage to survival mode – yet offers deep customization for those who want full control.
ReviveME!
A Hardcore Death System
JFH (just for hardcore)
this modpack adds tons of stuff that the perfect hardcore world would need, it's made for multiplayer but works for singleplayer too, it adds stuff like biomes, better world gen, bigger caves, voice chat, furniture and much much more
Pop & Urine [1.16 - 1.21+] - Human Needs
roleplay, needs, urine, poop, toilet, realism, survival, minecraft plugin, spigot, paper, spigot plu
Vestoria - A Journey Anew
Vestoria is a vanilla-style survival overhaul focused on atmosphere, exploration, and natural progression. Overgrown ruins and scattered remnants whisper of a forgotten world, but there is no path—only the one you create. A Journey Anew.

Better Hardcore Absorption Hearts
Makes the hardcore absorption hearts look more like the normal hardcore hearts
B's Instruments
Plugin that adds survival friendly Musical Instruments
Hyperbel Survival Mods Lite
A client side modpack made for the members of our server so that everyone has compatible mods.
ClusterOreMiner
Tired of mining one block at a time? ClusterOreMiner is a lightweight, performance-friendly

SBModernized (SkyBlock)
Experience Hypixel SkyBlock with optimization, beauty, and quality-of-life
QoL
(1.21.5+), Adds Quality of Life features that everyone needs in their Survival worlds/servers (will also include some of my other datapacks/mods in here)
MeowFurniture
Create survival-friendly custom blocks, ores, multiblocks, crafting, and commands, with a web block generator.
BounceCraft: ModernConflict
Modern technical survival with industries, weapons, vehicles, and advanced warfare. Automate, dominate the world, face creepy creatures, and live in a technologically advanced society ruled by nations.
Bomb add on
Explosives, radioactive blocks, nuclear tools & survival challenges. Build, destroy, and survive the chaos.
Time To Work
A tech, adventure, and survival-building modpack for endless exploration.
Click - Sound Gems [Hypixel Skyblock]
A resource pack for Hypixel SkyBlock that adds a satisfying click sound whenever you break a gemstone block/pane.
Far Frozen
Will you be able to survive and escape the frosty, Far Frozen landscape? All cold biomes. Hard early game survival.