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Minecraft Java 1.21 Mods

Browse 330 free mods for Minecraft Java 1.21 — popular picks include Social Player Mobs, Common Sense, Familiar Friends.

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Social Player Mobs
1.21.1neoforge

Social Player Mobs

Player mobs with behaviours, items / chest interactions and motives.

24kdownloads
Common Sense
1.21.1neoforge

Common Sense

Adds in items and recipes that are not craftable in vanila

24kdownloads
Familiar Friends
1.20.1fabric

Familiar Friends

Adds a book that can unlock special pets that grant new abilities

23kdownloads
Unique Commands
1.21.1forge

Unique Commands

Adds unique new commands to the game

23kdownloads
BKCommonLib
1.8

BKCommonLib

Spigot/Paper Utility Library and Minecraft Server API

23kdownloads
Server Sided Portals
1.21.11neoforge

Server Sided Portals

Create custom portals and dimensions compatible with any client!

22kdownloads
Graveyards
1.21.1neoforge

Graveyards

Wake up and fight the dead in epic battles!

22kdownloads
more ore iron and more diamond.
1.21.11forge

more ore iron and more diamond.

More Ore introduces a richer underground experience by greatly expanding the variety and abundance of minable resources.

19kdownloads
VR Jester API
1.21.1fabric

VR Jester API

Virtual Reality Gesture Recognition API for Vivecraft and QuestCraft

18kdownloads
Alexandria Lib
1.21.1neoforge

Alexandria Lib

Alexandria is a lightweight Minecraft library mod that provides shared utilities and a common foundation for other mods. It doesn’t add gameplay on its own but serves as a core dependency to make mods easier to build and maintain.

18kdownloads
PlayerProgress
1.16

PlayerProgress

PlayerProgress is a Minecraft datapack that introduces a leveling system. Earn UP from activities like mining and combat to level up and gain new abilities and rewards.

16kdownloads
TarkovCraft: Core
1.21.1neoforge

TarkovCraft: Core

Library with core functionalities for TarkovCraft project

15kdownloads
FacilisCommon
1.16

FacilisCommon

Library for Minecraft

15kdownloads
Luish's Guns Crafting Add-on
1.21.5fabric

Luish's Guns Crafting Add-on

Add-on for Luish's Guns that adds crafting recipes

14kdownloads
ProgressiveStages
1.21.1neoforge

ProgressiveStages

Fully customizable progressive stages for Minecraft with FTB Quests/KubeJS/JEI integration.

13kdownloads
Veil Origins
1.21.1neoforge

Veil Origins

When the Veil falls though the true origins of the ones you thought where friends...

12kdownloads
Rib (Roanoke Library)
1.21.1fabric

Rib (Roanoke Library)

A collection of common code and tooling for Roanoke Development's mods

11kdownloads
Rage Mod
1.18.2forge

Rage Mod

Add "Rage" to entities. Get damage bonus on full rage.

10kdownloads
SLM: Elements
1.20.1forge

SLM: Elements

Add an advanced elemental and elemental damage system, with direct, inverse, and static interactions and more!

9.5kdownloads
Keystone Expansion Pufferfish's Skills
1.21.11fabric

Keystone Expansion Pufferfish's Skills

MMO-style skill tree expansion for Puffish Skills, adding new progression categories like Combat, Mining, Exploration, Farming, Crafting, Building, Magic and Taming.

8.7kdownloads
Epic Fight x Iron's Spells: Enhanced Animations community port
1.21.1neoforge

Epic Fight x Iron's Spells: Enhanced Animations community port

Compatibility for Epic Fight and Iron's Spells 'n Spellbooks for the neoforge modloader on 1.21.1

8.6kdownloads
Guns Craft: Reforged
1.21.1neoforge

Guns Craft: Reforged

Deep weapon customization, realistic firearms, and immersive combat.

8.3kdownloads
Matthiesen Core
1.21.1neoforge

Matthiesen Core

A library mod for NeoForge and Fabric that enables developers to create mods with a shared common codebase.

7.1kdownloads
Piglet - furniture shops
1.21.1neoforge

Piglet - furniture shops

Adds 300+ decorational blocks that can be bought at shops that generate throughout the world

7.1kdownloads
Solstice Dynamic Seasons
1.20.1fabric

Solstice Dynamic Seasons

Experience a living world with Solstice: Dynamic Seasons, a 14-step seasonal simulation . Features realistic weather, shifting daylight, biome-aware snow, and custom crop growth. The ultimate Minecraft atmosphere!

6.8kdownloads
[TaCZ] Endless Ammo Refabricated
1.21.1fabric

[TaCZ] Endless Ammo Refabricated

A comprehensive ammo library addon for TACZ that adds 36 realistic ammunition types to expand your arsenal.

6.3kdownloads
Interference API
1.21fabric

Interference API

Simple library adding common mixins

6.1kdownloads
Overgrown's Sync
1.21.1fabric

Overgrown's Sync

A system for yielding new capabilities. Sync is an addon for the Apoli mod that's used primarily for the Origins mod!

6.0kdownloads
Kozhin's Lib
1.21.1forge

Kozhin's Lib

A library mod for common utils and functions in my mods.

6.0kdownloads
SimpleRPGCore
1.21.1neoforge

SimpleRPGCore

a simple RPG core mod for kubejs modpack or mods

5.6kdownloads
Feywild: Library
1.21.1neoforge

Feywild: Library

The Loremaster in his Library will give guide books you can borrow.

5.6kdownloads
fweigel-util-lib
1.21.11fabric

fweigel-util-lib

Shared client-side utility library for my Fabric mods. Provides common rendering, storage, UI, and sound utilities.

5.5kdownloads
Nixienaut
1.0fabric

Nixienaut

A common code Library.

5.0kdownloads
Azurium : Tools - Armor
1.21.1neoforge

Azurium : Tools - Armor

Add New Simple Material [ Azurium Tools And Armors ] [ Not OP Mod ] [ Hardcore ]

5.0kdownloads
Flint
1.21.11fabric

Flint

Core library for DiamondFire mods, allowing them to share systems and a common codebase.

4.7kdownloads
Szura's EconomY Mod
1.21.4neoforge

Szura's EconomY Mod

Transform your Minecraft gaming experience with the Realistic Economy mod! This innovative mod brings a complete economic system to the block world, allowing you to immerse yourself in a captivating economic simulation as you build, explore and trade.

4.3kdownloads