Minecraft Java 1.21 Mods
Browse 105 free mods for Minecraft Java 1.21 — popular picks include Sanity System – Psychological Survival, Pickaxes+, BackPackSSS.
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Sanity System – Psychological Survival
A subtle psychological horror mod that adds a hidden sanity system, immersive hallucinations, and fear-based survival mechanics to Minecraft 1.21.4 Fabric.
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.'
BackPackSSS
Custom tiered backpacks with progression crafting, upgrade system and persistent storage — designed for survival servers.
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.
Cold Biomes Only
Challenge yourself by making the world only cold biomes. Great for a hardcore winter challenge!
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.
Burning Daylight
Adds a survival twist to your gameplay with a plugin that causes players to take damage when exposed to sunlight.
TenLives
TenLives is a Minecraft plugin designed to add an extra layer of challenge and excitement to your survival gameplay
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.
WorldFall
Every time a player in survival mode moves to another block, the previous column disappears.
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
Survival to creative twist
Every 5 minuts you can choose one item , you'll get 1 of it
mSilkBedrock
A plugin that allows you to mine bedrock in survival.
Sloths Display Entity Editor
Create, modify, and delete Block and Item displays, even in survival!
SoulLock
Trap player souls on death and revive them by placing their head. Perfect for survival, PvP, and co-op servers.
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!
简易生存 Simple Survival
I added over 100 recipes! 【Breaking the balance】
Styzex's ultra hardcore
This datapack disables the diamond armour recipes and limits the player to have only 3 hearts
ReddishTheBest's Survival Additions | RSA
Datapack with a few survival-centered additions. Crafting Table+, Multi-Tool, Diver's Helmet with more to come!
Hardcore Death
A paper plugin which deletes a player inventory upon death
BIG Challenges
BIGChallenges: The Ultimate Survival Test 💀
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.
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.
![[DISCONTINUED] Travis Takeover](https://pub-2ae937f770284535a96c3330f91236aa.r2.dev/thumb/modrinth/296451.webp)
[DISCONTINUED] Travis Takeover
Its corruption messes with your survival.
Blocked In Hardcore
A challenging version of the Blocked In datapack
Glassification
Glassification transforms the entire world into fragile glass, removing structural safety and leaving survival to pure mechanical mastery.
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.
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
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.
SkyBlock But Better!
Vanilla Friendly Challenge!
True Scroll
Adds True Scroll that let you use commands in survival mode
mutationcraft-plus
Adds 24 random world mutations that completely change Minecraft every 5 minutes, making every survival adventure unique.
FrediFrets-Challenges
Add exciting Minecraft challenges like random drops, chunk effects, expanding borders, and hardcore modes – all controllable with simple commands.
Ultimate Survival Expansion
This datapack adds 6 legendary swords with unique abilities! Perfect for players who want a faster and more exciting survival experience!
God Bird Feather Flight
A feather gives you flight in survival (it's scuffed af)
Wither Survival
Every mob turns into Withers. Try to beat the game