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Minecraft Java 1.21 Mods

Browse 388 free mods for Minecraft Java 1.21 — popular picks include Backrooms blocks and stuff, Unhappy Structures, Netherite Block Smithing.

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388 mods

1.21.1neoforge

Backrooms blocks and stuff

this mod adds new building blocks, which look like they're from the backrooms

180downloads

1.21.4

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.

178downloads

1.21.5fabric

Netherite Block Smithing

Instead of being a storage block, makes Netherite blocks just a fancy building block.

176downloads

1.2.1

ServerSideBuilds Plugin

ServerSideBuilds is a clientless, zero-dependency Minecraft construction zone simulator that projects holographic block blueprints directly to any standard player client. It streamlines survival building with real-time placement verification, etc...

175downloads

1.21fabric

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.

172downloads

1.21.8neoforge

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!

170downloads

1.20

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)

168downloads

1.21.1neoforge

Bubble Construct

This mod adds bubbles to help you in building

165downloads

1.21.11-pre3

Talon's Building Particles

Create and Control Particles in Survival Minecraft!

165downloads

1.21.1neoforge

Ornamentum

this is a friendly building mod that adds decorative blocks to expand building palette while staying true to the game's original style.

161downloads

1.21.1neoforge

Galacticrow Additions

A mod that adds building blocks and unique tools for you to use.

160downloads

1.21.1fabric

SecondDawnBlocks

SecondDawnBlocks is a large-scale sci-fi building expansion mod designed to give players futuristic blocks for creating immersive futuristic environments.

159downloads

1.21.8neoforge

Picasso

Transform your world with many new building blocks.

154downloads

1.21.8fabric

LM Build & Design

More building blocks to create better builds!

153downloads

1.21.10

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!

152downloads

1.21.11fabric

Blokkusus

This mod adds 126+ new building blocks!

148downloads

1.21.11fabric

STRUTTURA

Lets players create, share, and discover buildings across the community.

146downloads

1.21.1neoforge

Tonten

This mod adds simple building assistance tools that can be used in survival mode.

145downloads

1.21neoforge

Fractum - extra blocks

add a bunch of new block sets based on vanilla materials, aim to improve the building experience

135downloads

1.21.1neoforge

SqueakyBackrooms

Backrooms building blocks right inside your pocket!

130downloads

1.21.8fabric

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.

128downloads

1.21neoforge

Sideways Building

This is a building mod that introduces an overhauled placement mechanic for stairs and other blocks in Minecraft.

119downloads

1.21neoforge

Cozy Night Lamps

The coziest light sources you never knew your base was missing.

117downloads

1.2.1

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.

111downloads

1.21.8fabric

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

109downloads

1.21.5fabric

Creative Crafting

A new vanilla styled building mod for builders looking for that subtle but well deserved change!

105downloads

1.21.8

WhyJan's Texture Pack

The texture pack that WhyJan uses in his Building with Jan world.

102downloads

1.21.8neoforge

Project Tiger

This is a light weight w.i.p mod with new buildings and blocks

98downloads

1.21.8neoforge

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.

97downloads

1.6.1

Panorama of the round house

Minecraft panorama of the round house

95downloads

1.21.1neoforge

My Wool Update

Expand your building options with stairs and slabs crafted from all 16 wool colors.

94downloads

1.21.11

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.

93downloads