Minecraft Java 1.21 Mods
Browse 395 free mods for Minecraft Java 1.21 — popular picks include Picasso, Ornamentum, STRUTTURA.
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Picasso
Transform your world with many new building blocks.
Ornamentum
this is a friendly building mod that adds decorative blocks to expand building palette while staying true to the game's original style.
STRUTTURA
Lets players create, share, and discover buildings across the community.
Galacticrow Additions
A mod that adds building blocks and unique tools for you to use.
SecondDawnBlocks
SecondDawnBlocks is a large-scale sci-fi building expansion mod designed to give players futuristic blocks for creating immersive futuristic environments.
Blokkusus
This mod adds 126+ new building blocks!
Building Update
Be ready to craft amazing new blocks with the stonecutter! Terracotta and concrete stairs, slabs and walls, and stairs and glass walls, be ready!
Bubble Construct
This mod adds bubbles to help you in building

Builders' Bottles
A vanilla-style texture pack that vastly changes potions, splash potions, and lingering potions' base shape, honey/exp/dragon breath included! (should have full mod support)
Antisolar Blocks
Early access to my building mod ! It adds over 700 blocks already and more is to come. Focused on new rocks and plants this building mod is meant to fit in with vanilla while sprucing up the limited minecraft palette.
Unhappy Structures
Today I would like to introduce you to my new data pack to improve the outside world, namely adding new buildings, in the data pack there are 14 buildings, from a banal house to a simple piece of stone on the road, where you can mine iron, coal, etc.
LM Build & Design
More building blocks to create better builds!
Talon's Building Particles
Create and Control Particles in Survival Minecraft!
Tonten
This mod adds simple building assistance tools that can be used in survival mode.
SqueakyBackrooms
Backrooms building blocks right inside your pocket!
Alarm Mod
Alarm Mod adds functional Alarm, powered by the Veil rendering library. Perfect for base defense, factory hazard signaling, and technical builds.
Creative Crafting
A new vanilla styled building mod for builders looking for that subtle but well deserved change!
Project Tiger
This is a light weight w.i.p mod with new buildings and blocks
Sideways & Beyond
This is a building mod that introduces an overhauled placement mechanic for stairs and other blocks in Minecraft.
Fractum - extra blocks
add a bunch of new block sets based on vanilla materials, aim to improve the building experience
Enchantment Lore + Enchantment Encore Extra
This adds world-building for all the enchantments across Vanilla and Enchantments Encore via book lore. Get to reading, worms!
Bronze Age Mod - A Dip In The Past
Immerse yourself in the Bronze Age! Meet new metals, building blocks and foodstuff which will bring you back to an Age of Heroes.
Cozy Night Lamps
The coziest light sources you never knew your base was missing.
Modded Life
A comprehensive Minecraft modpack enhancing gameplay with performance optimizations, quality-of-life tools, and expanded building and decoration options. Includes libraries, APIs, and utilities to streamline modding and improve the overall experience.
Create TrackSta (Stations & Tracks)
Mod that adds building blocks for tracks and stations. e.g. Platform Sign Blocks and Noise Isolation Walls.
Empiremodpack
A stylish, cozy Minecraft modpack designed with creativity in mind—perfect for building, decorating, and exploring without the chaos of magic or overpowered mobs
Life Is Strangeous
This mod is inspired by Life Is Strange. There is 25 Discs, 6 paintings and lighthouses. The discs can be obtained by recipe, drop and trades.
CasleRush
CastleRush, inspired by the German Youtubers "Rewinside" and "Ungespielt". A Paper Plugin that you can install to play an optimized version of the Format. Build your Castles with how many friends you want and race against them at the end.
Wand of Replication
Unleash the magic of duplication! The Wand of Replication lets you instantly copy blocks and small structures, making building faster and more efficient. An essential tool for every serious Minecraft builder.
SunSheep's Home
新增了一个蓝白色系的房子,可以用于入住! A new blue and white house has been added, which can be used for occupancy!
[Cobblemon]: Dialyn cosmetic
Give your Lopunny a costume base on Dialyn (ZZZ's character)
WhyJan's Texture Pack
The texture pack that WhyJan uses in his Building with Jan world.
My Wool Update
Expand your building options with stairs and slabs crafted from all 16 wool colors.
Viola Mod
Viola Decorative is a more-decorative mod for creating cities and buildings in the style of the 18th and 19th centuries.
Blueprint Executor
Executes building blueprints from JSON.
Panorama of the round house
Minecraft panorama of the round house