Minecraft Java 1.21 Mods
Browse 16 free mods for Minecraft Java 1.21 — popular picks include World In a Jar, Adventurer's BackPack, XP Crystals.
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World In a Jar
(Snowglobe) A terrarium-inspired block made for builders and survival players alike.
Adventurer's BackPack
Adventurer’s Backpack adds magical, upgradeable backpacks for survival. Carry more, protect key items, place your pack in the world, and customize it for mining, building, and exploration without making survival feel like creative mode.
XP Crystals
Store your XP in craftable crystals. Survival-friendly and tier-based: store 3, 10, 30, 50 levels—or infinite XP. Customizable
Magic Construction
A powerful building mod that adds magical wands to place multiple blocks at once, with integrated pouches for material storage and repair runes for maintenance.
RandomDirtDrops
RandomDirtDrops is a fun Minecraft data pack that makes breaking dirt blocks drop completely random items from the entire game — from diamonds to dragon eggs! Perfect for chaotic survival challenges and OP item speedruns.
Draventh Ores
⚒ Advanced Tier Ores & Equipment This mod expands Minecraft’s survival progression by introducing 15 new late-game materials, each with full armor and tool sets. The goal of this mod is simple: Extend progression beyond Diamond and Netherite with a struc
Strixun: Trials of the Wild
Hardcore survival modpack with ~300 exploration, magic, combat, and world‑overhaul mods. Includes Rituals for totem magic, buffs, farming, and defenses, plus Compressy for massive block storage. Optional no‑regen/no‑raids for true hardcore players.
ExtraEnderchest
A plugin that adds the Large Enderchest (one block double inventory size) with customizable crafting recepie and extensive config
QuarryPlugin
⚒️ QuarryPlugin Automated Mining, Done Right Always wanted a BuildCraft style quarry in vanilla survival?
OP OAK PREASURE PLATE
Super interesting datapack, designed for skyblock or oneblock better start or if you just want to get geard up fast in your own server before your friends. (Sneeky cheat code🫠)
SYSTEM SMP
System SMP is a premium Minecraft plugin designed for survival multiplayer servers. It adds unique features including small caps text formatting, tree felling mechanics, custom item displays, and an economy-based spawner mining system.
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!
Dacy's Toolbox
This mod adds tools/weapons/blocks that aid a survival mode player in PvP or just minecraft in general, It adds anything you can think of, Ores, Armor, and a lot of tools.
Corail Backpack Mod (1.21.11, 1.20.1) – The Adventurer Backpack
Corail Backpack Mod is an adventurer backpack with balancing capabilities oriented on survival mode. Features: Variety of inventory geometries to craft. Made of armor materials. Damages each opening (if normal difficulty, hard – twice faster), could be repaired on anvil. Could be enchanted for better durability and self repairing. Could be dyed similarly to leather […]
Owl's Pocket Dimension
Enjoy a Pocket Dimension where you can build in peace! Survival and multiplayer friendly
Arcanum Void (AV)
A magic-focused Skyblock modpack where you harness arcane power to survive the endless void, with light tech support for storage and energy.