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Minecraft Java 1.21 Mods

Browse 390 free mods for Minecraft Java 1.21 — popular picks include Simple Orbital Strikes, Kryeit, Creat Aeronautics Structures.

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Simple Orbital Strikes
1.21.11fabric

Simple Orbital Strikes

Adds orbital strikes as seen in Wemmbu's videos, no machine building needed.

15kdownloads
Kryeit
1.21.1neoforge

Kryeit

Base modpack for the Kryeit server

14kdownloads
Creat Aeronautics Structures
1.21.1neoforge

Creat Aeronautics Structures

This mod adds natural-looking structures built from Create and Create: Aeronautics blocks to Minecraft 1.21.1. The ruins of engineering houses, abandoned boats, soaring airships, and robber balloons will fit seamlessly into your worlds without disrupting

14kdownloads
Enchanted Mobs
1.21fabric

Enchanted Mobs

Make the PVE more dynamic with mobs enchanted, that gain abilities in base of the enchant obtained.Make the PVE more dynamic with mobs enchanted, that gain abilities in base of the enchant obtained.

12kdownloads
Create Nuclear Tech
1.21.1neoforge

Create Nuclear Tech

Create nuclear tech is port hbm ntm on minecraft 1.21.1 but with create mod base

12kdownloads
Train Yard
1.21.1neoforge

Train Yard

Train Yard is a modpack about making trains. Allowing for creative building of locomotives

12kdownloads
Corail Platform
1.21.11neoforge

Corail Platform

Platform to move houses and other construction, also elevators, sky ferries, etc.

12kdownloads
Mekanism Card
1.21.1neoforge

Mekanism Card

Mekanism Card is a batch operation toolset for the Mekanism mod featuring a Mass Upgrade Configurator, Memory Card, and Guide Book to save hours of tedious clicking when building large factories.

11kdownloads
NMI - server side mods only
1.21.3fabric

NMI - server side mods only

This is a collection of over ✨150+✨ server side mods that enhance your gameplay with voice chat, factions, economy, seasons, dungeons, buildings, mobs and much more. 🌌

11kdownloads
More Security
1.21.1neoforge

More Security

This mod adds some technologies to protect your house.

9.0kdownloads
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
Phone : MC Device
1.21.1neoforge

Phone : MC Device

MC Device A mod that adds electronic devices and household appliances.

7.6kdownloads
TileFinder
1.21.1neoforge

TileFinder

Client-side mod to help you find tile and block entities (chests, machines, etc) around your base and world.

7.6kdownloads
Invillagers: Villagers vs In-Villagers
1.21.11fabric

Invillagers: Villagers vs In-Villagers

A Fabric 1.21.11 mod that adds a new conflict between Villagers and In-Villagers, with custom guards, workers, chiefs, structures, logistics, building systems, and powerful protectors like Diamond Golems.

7.6kdownloads
Angel Extra Utilities
1.21.1neoforge

Angel Extra Utilities

Adds unique decorative and functional blocks inspired by Extra Utilities 2. Perfect for players seeking aesthetic and practical building options.

7.3kdownloads
EconomySystem
1.21

EconomySystem

lightweight, no-dependency economy plugin for Minecraft that provides essential digital currency features with optional database support and full configurability.

7.0kdownloads
SpeedHack - Dev Tools Neo/Forge/Fabric
1.21.4forge

SpeedHack - Dev Tools Neo/Forge/Fabric

SpeedHack is a lightweight client-side mod that allows you to adjust your movement speed on the fly. Whether you need to speed up your travels or slow down for precise building

6.6kdownloads
Enhanced Minecraft 2.0
1.21.10fabric

Enhanced Minecraft 2.0

Makes playing Minecraft feel like you are a child again! A modpack enhancing base mechanics and adding features to the game in every way possible, letting you explore the game again and in new ways ;)

6.3kdownloads
All Of Utility 2
1.21.11fabric

All Of Utility 2

Redstone tech, carpet+addons, exploration, visual, QOL, building tools.

6.2kdownloads
Immersive Animals
1.21.4fabric

Immersive Animals

Capture chickens with bare hands, house them in craftable coops, and harvest eggs & feathers on timers. Vanilla-friendly with full config support

5.3kdownloads
Farmer Enchants [Light QoL for farmers] (Fabric)
1.21.11fabric

Farmer Enchants [Light QoL for farmers] (Fabric)

Lightweight farming enchants for hoes and blocks, including Big House and Honey Overflow (particles, extra beehive honey), plus Autosow, Grid, Fertility, Collector, Oasis.

5.3kdownloads
BuildingGadgets2GUI
1.21.1neoforge

BuildingGadgets2GUI

Enhancing Bg2 template saving/loading to disk via a screen GUI.

5.1kdownloads
Potion of Haste
1.21.5fabric

Potion of Haste

Allow you to obtain haste effect without building beacons

4.8kdownloads
Defensive Traps
1.21.1neoforge

Defensive Traps

Adds new blocks that you can use for to defend your base or use them as traps

4.3kdownloads
World-Editor+
1.21.8fabric

World-Editor+

A Fabric modpack focused on world editing, image importing, and enhanced building tools. Perfect for creators, builders, and large-scale projects.

3.9kdownloads
OpenCreative+
1.21

OpenCreative+

Let your players create worlds. With buildings, settings and even coding on blocks!

3.8kdownloads
Guess The Block Minigame
1.13

Guess The Block Minigame

Tired of building a minigame all by yourself? Bored of playing minecraft too? A new minigame now awaits you!

3.8kdownloads
FirmalifeEnhance
1.21.1neoforge

FirmalifeEnhance

Compatibility add-on for TerraFirmaCraft + Firmalife. Adds climate control for greenhouse farmland, removes seasonal growth limits in greenhouses, improves cellar preservation, and adds JEI-visible greenhouse salvage recipes.

3.5kdownloads
Chill
1.21.1fabric

Chill

Experience the official Chill SMP: vast landscapes, and immersive progression for all, plus a relaxing cooperative experience focused on exploration and building.

3.2kdownloads
Nations & Villagers – AI Reborn
1.21.1neoforge

Nations & Villagers – AI Reborn

Town building, AI integration and hole inteactive city system.

3.0kdownloads
Solar Industrialization
1.21.1neoforge

Solar Industrialization

Solar Industrialization is a streamlined addon for Modern Industrialization that introduces tiered solar panels (LV to SV). It provides clean, passive energy generation fully integrated into the base mod's progression and recipe system.

2.8kdownloads
DestriumMod
1.21.1forge

DestriumMod

DestriumMod is a Minecraft Mod based on Exploration, Building, Tools and Machines !

2.7kdownloads
Builder's Void
1.21.1neoforge

Builder's Void

A void dimension for all your building needs!

2.6kdownloads
UsefulDecor: Interactive Craft
1.21.11fabric

UsefulDecor: Interactive Craft

Adds functional decorative blocks including storage chests, oak windows, and lockable doors that enhance base security.

2.6kdownloads
Fr3shpack - TooManyMods
1.21.1neoforge

Fr3shpack - TooManyMods

A tech-only modpack with the sole focus on base building and growing a factory

2.6kdownloads
Infinity Nexus Greenhouse
1.21.1neoforge

Infinity Nexus Greenhouse

A simple mod to made a wonderful greenhouse

2.5kdownloads