Minecraft Java 1.21 Mods
Browse 862 free mods for Minecraft Java 1.21 — popular picks include Remove Netherite Upgrade, Ethereal Mediumcore, Renewable Survival.
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Remove Netherite Upgrade
Complete removes Netherite smithing template drop from survival. Also Fixes duplication glitch.

Ethereal Mediumcore
Revive your friends in multiplayer hardcore, Vanilla+ style
Renewable Survival
Makes All Items Renewable. Adds crafting or mob drops.
SpaceFrog's Cat Variant Changer
Change a cat's breed (variant type) using a vanilla/survival-friendly method. Choose from all kitty varieties: black, calico, jellie, orange (red), persian, ragdoll, shorthair, siamese, tabby, tuxedo, white & a special random type.
LevelsSMP (Remake)
A hardcore survival plugin where your multiplier is your life. Steal multipliers from other players to gain more hearts and XP, but be careful dropping to 0.0x results in a deathban.
TheConstant
A Fabric mod that channels Don’t Starve–style hardcore survival into Minecraft: manage health, hunger, and sanity; survive seasons, temperature, darkness, and food spoilage with crock-pot cooking and recipe planning.
SuperHardcore
A mod that enhances the survival experience by limiting your health and adds many more challenges.
Instant Breaker
This mod Adds a instant Break toggle for Singleplayer and Singleplayer ONLY and works for Hardcore Survival And Creative "NOT ON MULTIPLAYER"
Advanced Crafting
This datapack allows players to craft items in Survival mode that are normally only available in Creative mode or cannot normally be obtained. Instead of needing to ask a server owner or administrator to give you these items
WaterDehydration
A survival realism plugin that adds dynamic hydration mechanics with dehydration effects and wat
Nether Fortress Compass
A survival-friendly compass earned from Ruined Portal chests that points to the nearest Nether Fortress. 从废弃传送门箱子获得指南针,直达最近的下界要塞。
Time Bank
A hardcore survival plugin where players have limited lifespan based on real playtime. Time is tradeable as physical crystals, creating a unique time-based economy!
Survival-Friend
prevents creeper block damage and crop trampling, enables portal based farms on SMP, offers /tpa features and global totem pop messages and the ability to make the ender dragon a bit harder.
Craftable Iron
A simple datapack that adds a crafting recipe for iron ingots. Originally made to skip the grind in skyblock.
Minecarts with Blocks
put a block in a cart! survival friendly!
hypixel skyblock endstone protector timer
timer for hypixel skyblock endstone protector
Red-Light Green-Light Challenge
A high-intensity Red Light Green Light game inspired by Squid Game, where movement detection and timed phases create a thrilling survival challenge.
CampFirePlus
Level-up campfires: fuel, grow power, immersive survival.
Item Discovery
A small mod which lets survival players name all items whatever they want without imposing any pre-existing names.

Bamboo Unpack
Lets you cut Bamboo Blocks into Bamboo using a stonecutter. Simple and survival-friendly.
Sun Compass
A vanilla-friendly survival tool that uses the sun's position and time to find North
One Life [NanoVirus]
You have only one life (Like in hardcore) but also after your death a corpse is spawn (Last thing that they will have after you)
SkyBlock But Better!
Vanilla Friendly Challenge!
Survival Nerf
Minimalistic vanilla-flavored design and balance overhaul. Mostly reverting bad decisions the devs have made. Intended for use with Etomb's Better Survival modpack.
Pass the torch
Ultra hardcore minecraft inspired from FlamingMoai's UHC: Generations, when you die the world will pass to a new player.
OneSlotChallenge
A brutal hardcore mod that locks all inventory slots except the 5th. The remaining 35 slots are filled with permanent barriers. Survive with only one slot if you can!
F&H survival
Dark fantasy survival mod that adds content from the game Fear and Funger
BYD_WORLD_ULTRA
Vanilla Survival Server Basic Integration Plugin
Proclamations
Proclamations is a Minecraft datapack that lets you add in-game announcements (using the /title command) to your Survival Mode builds.
Block4Block Plugin - Advancements
(Recommended Plugin) Survival mode with a unique cost to breaking blocks.

Real Temp
A realistic client-side temperature survival mod with dynamic biomes, weather, altitude, armor insulation, and seasons. Survive freezing winters, scorching summers, and extreme climates with immersive environmental mechanics.
HardSet
A new world type alongside Survival, Creative, and Hardcore that makes hardcore truly enforced and tamper-resistant. No commands, no creative, no cheats, and no loading a backup to undo a death.
Drop Guard
A Mod For Hypixel Skyblock That Stops You From Dropping Items Unless Your In The Inventory
PermaEfe
PermaEfe is a Minecraft datapack that increases the difficulty progressively for 30 days, with mechanics such as permanent death, boosted mobs and unique craftables. Ideal to play with friends and test your survival.

True Scroll
Adds True Scroll that let you use commands in survival mode
Simple Skyblock
A datapack that adds a lot of unobtainable items to the skyblock experience.