Minecraft Java 1.21 Mods
Browse 253 free mods for Minecraft Java 1.21 — popular picks include Fake Hardcore Hearts, ReddishTheBest's Survival Additions | RSA, Death Kick.
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Fake Hardcore Hearts
This resource pack adds fake hardcore hearts while looking like a fulbright texture pack ingame to fool your friends!
ReddishTheBest's Survival Additions | RSA
Datapack with a few survival-centered additions. Crafting Table+, Multi-Tool, Diver's Helmet with more to come!
Death Kick
This plugin is useful for scripted SMP's which are "hardcore" basically, this plugin just kicks players after they die. Zero bloat.
Hardcore Death
A paper plugin which deletes a player inventory upon death

BIG Challenges
BIGChallenges: The Ultimate Survival Test 💀
Horror Economy
Post‑apocalyptic horror survival with a hard economy, build a secure base, trade for ammo and gear, and risk losing money on death.
Waffled
This is a skyblock-style mod, but with waffles!
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.
Bone Bone Block
Adds a new decorative block - the Bone Bone Block! Craftable using Bone Blocks, and can be converted back to Bone Blocks.
Mitos Argentinos
A survival and adventure mod that brings the myths and legends of Argentine folklore to your Minecraft world. / Un mod de supervivencia y aventura que trae los mitos del folclore argentino.

BingusDune
Hello y'all, this is my first mod, and it will be updated constantly to add features that make the dessert a more interesting biome. Currently, the Mod doesn't improve the survival experience to a meaningful degree. Check back soon for more updates!
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
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.
Honeymotes
Honeymotes is a datapack that adds a myriad of fun emotes and visual gags to the game. Honeymotes do not impact gameplay and are purely visual in nature. They work in survival/creative mode as well as single/multiplayer!
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!
Blue Sandstone
Just a texture pack to make the sandstone block blue
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
Hardcore Slots
In this mode, every time you take damage, one slot in your inventory becomes locked and can no longer be used.
GlobalHealth
All players share one global health bar. Damage one, damage all. Heal one, heal all. If one player dies, everyone dies. Perfect for challenges, hardcore modes, and teamwork-focused gameplay as well as creating content and events.
Random Eventy
When creating a new world you have a new button, there you can configure the randomness of your survival world!
SBSymbol
resource pack that changes hypixel skyblock arachnal symbol from Ж to spider emoji
NotQuiteDead
Become a zombie, husk, and drowned in survival!
Endless Villages
Every chunk is filled with villages, creating a unique survival experience focused on exploration and village-based gameplay so turn your Minecraft world into a place where only villages generate.
Deep Dark + Crimson Isle
Hypixel Skyblock - Turns the "Crimson Isle" into a Deep Dark Theme!
Nether + Dungeons
Hypixel Skyblock - Turns "Dungeons" into a Nether Theme!
Rule Breaker's Guide
Breaking open Minecraft for those who seek more in survival.