HomeJava1.21

Minecraft Java 1.21 Mods

Browse 107 free mods for Minecraft Java 1.21 — popular picks include Pickaxes+, BackPackSSS, Cold Biomes Only.

Updated daily

FiltersHorror×Robots×Survival×Clear all
Sort107 mods
Pickaxes+
1.21.4neoforge

Pickaxes+

a collection of cursed, enchanted, and hella beefed-up pickaxes designed to make your survival world weep and your friends ask 'what the hell is that.'

538downloads
BackPackSSS
1.21

BackPackSSS

Custom tiered backpacks with progression crafting, upgrade system and persistent storage — designed for survival servers.

516downloads
Cold Biomes Only
1.21.9

Cold Biomes Only

Challenge yourself by making the world only cold biomes. Great for a hardcore winter challenge!

461downloads
Ultra Blood Moon
1.21

Ultra Blood Moon

Blood Moon turns ordinary nights into survival events with stronger mob variants and unique lunar events, pushing players toward inevitable, high-stakes encounters.

450downloads
PermaEfe Extreme Survival
1.21.5

PermaEfe Extreme Survival

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.

406downloads
Burning Daylight
1.18.2

Burning Daylight

Adds a survival twist to your gameplay with a plugin that causes players to take damage when exposed to sunlight.

363downloads
TenLives
1.20

TenLives

TenLives is a Minecraft plugin designed to add an extra layer of challenge and excitement to your survival gameplay

316downloads
Minecraft, But Keep Moving or Die!
1.21

Minecraft, But Keep Moving or Die!

This datapack introduces a unique survival challenge where players must maintain continuous movement to stay alive. When a player remains stationary, they begin taking progressive damage until they move again or perish.

305downloads
WorldFall
1.20

WorldFall

Every time a player in survival mode moves to another block, the previous column disappears.

299downloads
Half Heart Hardcore (HHH)
1.21

Half Heart Hardcore (HHH)

All it does is set the player's max health to half a heart. It works on any player that joins the game later. Optimized to the max

293downloads
Sloths Display Entity Editor
1.21.6fabric

Sloths Display Entity Editor

Create, modify, and delete Block and Item displays, even in survival!

254downloads
Survival to creative twist
1.21.4fabric

Survival to creative twist

Every 5 minuts you can choose one item , you'll get 1 of it

253downloads
简易生存 Simple Survival
1.21fabric

简易生存 Simple Survival

I added over 100 recipes! 【Breaking the balance】

226downloads
mSilkBedrock
1.21

mSilkBedrock

A plugin that allows you to mine bedrock in survival.

225downloads
SoulLock
1.21

SoulLock

Trap player souls on death and revive them by placing their head. Perfect for survival, PvP, and co-op servers.

204downloads
Chaos X
1.21neoforge

Chaos X

A mod bringing 100+ random events to Minecraft. Every 60s, a new chaos affects all players at once. Features 4 languages, rare Omega Chaos, and custom timers for an unpredictable, epic survival challenge!

200downloads
BIG Challenges
1.21.1neoforge

BIG Challenges

BIGChallenges: The Ultimate Survival Test 💀

180downloads
ReddishTheBest's Survival Additions | RSA
1.21.11

ReddishTheBest's Survival Additions | RSA

Datapack with a few survival-centered additions. Crafting Table+, Multi-Tool, Diver's Helmet with more to come!

177downloads
Styzex's ultra hardcore
1.21

Styzex's ultra hardcore

This datapack disables the diamond armour recipes and limits the player to have only 3 hearts

174downloads
Hardcore Death
1.21

Hardcore Death

A paper plugin which deletes a player inventory upon death

166downloads
Glassification
1.21.1fabric

Glassification

Glassification transforms the entire world into fragile glass, removing structural safety and leaving survival to pure mechanical mastery.

137downloads
RealityShift
1.20

RealityShift

Make every day a new adventure! RealityShift activates a random anomaly daily from a pool of 50+ unique events, completely changing the rules of survival.

127downloads
mutationcraft-plus
1.21.1fabric

mutationcraft-plus

Adds 24 random world mutations that completely change Minecraft every 5 minutes, making every survival adventure unique.

123downloads
Blocked In Hardcore
1.21

Blocked In Hardcore

A challenging version of the Blocked In datapack

119downloads
Time Hunter
1.21.5

Time Hunter

Time Hunter is a team PvP survival datapack where players compete by mining resources and eliminating foes to extend their countdown, with elimination on timeout, supporting 2-4 team battles and strategic combat.

116downloads
Disaster SMP
1.21

Disaster SMP

DMSP (Disaster Management System Plugin)Cinematic Natural Disasters for PaperMC 1.21+DMSP is not just a plugin; it's an environmental overhaul designed to challenge even the most seasoned survivalists.

115downloads
[DISCONTINUED] Travis Takeover
1.21.1neoforge

[DISCONTINUED] Travis Takeover

Its corruption messes with your survival.

113downloads
Advanced Crafting
1.21.8

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

103downloads
Red-Light Green-Light Challenge
1.21

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.

99downloads
SkyBlock But Better!
1.21.4

SkyBlock But Better!

Vanilla Friendly Challenge!

98downloads
True Scroll
1.21

True Scroll

Adds True Scroll that let you use commands in survival mode

94downloads
Ultimate Survival Expansion
1.21

Ultimate Survival Expansion

This datapack adds 6 legendary swords with unique abilities! Perfect for players who want a faster and more exciting survival experience!

90downloads
FrediFrets-Challenges
1.21

FrediFrets-Challenges

Add exciting Minecraft challenges like random drops, chunk effects, expanding borders, and hardcore modes – all controllable with simple commands.

88downloads
Hardcore Slots
1.21.1fabric

Hardcore Slots

In this mode, every time you take damage, one slot in your inventory becomes locked and can no longer be used.

81downloads
God Bird Feather Flight
1.21.3

God Bird Feather Flight

A feather gives you flight in survival (it's scuffed af)

81downloads
Wither Survival
1.21

Wither Survival

Every mob turns into Withers. Try to beat the game

80downloads