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Minecraft Java 1.21 Mods

Browse 151 free mods for Minecraft Java 1.21 — popular picks include Smeshariki: Otherworld, Delivery Rocket Mod, error killer.

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Smeshariki: Otherworld
1.21.8neoforge

Smeshariki: Otherworld

A mod featuring diverse space content in the spirit of Galacticraft.

113downloads
Delivery Rocket Mod
1.21.1fabric

Delivery Rocket Mod

This mod adds rockets, which deliver items!

105downloads
error killer
1.21.4fabric

error killer

If you try to place a block but an obstacle is in the way (like levers) the mod instantly grabs a Water Bucket or Lava Bucket from your hotbar to clear the space and places your block

79downloads
Seal's SMP Forever+
1.21.1neoforge

Seal's SMP Forever+

A Vanilla+ modpack centered around adding new things to key features of the vanilla experience while also expanding that experience to different dimensions and planets. adding new bosses for late game content and items.

77downloads
Mars Renaissance
1.21.1neoforge

Mars Renaissance

The Mars Planet add to Minecraft!

75downloads
Duststorm
1.21.1neoforge

Duststorm

Survive a crash landing on the scorching hot distant planet of Tiziria.

71downloads
Create: Celestial Mechanics
1.21.1neoforge

Create: Celestial Mechanics

Launch yourself into space with the Create mod!

62downloads
BLOCKID Display
1.21

BLOCKID Display

Displays the namespaced block ID (including water/lava) and block facing direction in the ActionBar.

61downloads
Simple keys
1.21.11neoforge

Simple keys

This mod lets you see what keys your pressing like wasd and space bar

57downloads
Cosmic Blaze
1.6.1

Cosmic Blaze

Cosmic Blaze lights up the night with fiery space visuals, bringing warmth and energy to Minecraft's nighttime landscapes.

56downloads
Green Space's TNT's
1.21.8neoforge

Green Space's TNT's

This mod is a TNT mod inspired by a lot of Minecraft modded TNT's. Note: This mod is not on forge yet, I have had some issues logging in so I switched to publishing this mod on Modrinth, sorry! will fix soon! v0.1, 4 TNT's. Bye!

43downloads
MagicFactory
1.21.4neoforge

MagicFactory

Mod adding a new liminal space

42downloads
Alienated
1.21.8neoforge

Alienated

Adds a whole new planet to explore!

42downloads
RPG PLUGIN
1.20

RPG PLUGIN

Create a highly detailed RPG-7 weapon mod. The weapon is based on a crossbow and fires explosive rockets instead of arrows. Rockets create a large explosion on impact, destroying nearby blocks

40downloads
Create Ender Transmission Mod (1.21.1, 1.20.1) – Transmission With No Space Limit
1.21.1neoforge

Create Ender Transmission Mod (1.21.1, 1.20.1) – Transmission With No Space Limit

Create Ender Transmission Mod implements stuff that makes distance/dimension doesn't matter for your machines. Energy/Item/Fluid transmission with no space limit. Features: Chunk loader: Loads chunk using kinetic energy. Energy Transmitter: Transfer energy. Item Transmitter: Transfer items. Fluid Transmitter: Transfer fluids. Screenshots: Create Ender Transmission Mod Download Links For Minecraft 1.21.1, 1.21 NeoForge version: Download from […]

Petrol Parts Mod (1.21.1, 1.20.1) – New Create Mod Components
1.21.1neoforge

Petrol Parts Mod (1.21.1, 1.20.1) – New Create Mod Components

Petrol Parts Mod is an add-on for the Create mod, that introduces some new block mechanisms that can be used in combination with Create machinery. The newly added mechanisms include components like Coaxial Cogwheel, Differential, Double Cardan Shaft, Planetary Gearset, etc. Of these, the Hydraulic Transmission system allows you to easily transport items between different […]

Medieval Siege Machines Mod (1.21.1, 1.20.1) – War Machines
1.21.1forge

Medieval Siege Machines Mod (1.21.1, 1.20.1) – War Machines

Medieval Siege Machines Mod adds several medieval themed war machines that you can use in your game. The mod also adds several items, like wheels, that are used while crafting these machines. And they come with realistic sounds and animations too. The machines are enormous and will take up a lot of space in your […]

Stellaris Mod (1.21.5, 1.20.6) – A Thrilling Space Adventure
1.21.5fabric

Stellaris Mod (1.21.5, 1.20.6) – A Thrilling Space Adventure

Stellaris Mod introduces a space exploration to Minecraft, allowing players to go beyond Earth and explore planets, moons, and galaxies. With its detailed rocket crafting system, planetary exploration, advanced technology, and encounters with alien species. Features: Rocket Crafting and Launching: Build and customize your rocket with a component system, upgrading it as you progress. Planetary […]

Incubation Mod (1.21.1, 1.20.1) – Automated Eggs Harvesting
1.21.1neoforge

Incubation Mod (1.21.1, 1.20.1) – Automated Eggs Harvesting

Are you tired of having hundreds of eggs take up space in your chests? Do you wish you could use them for something other than baking cakes and pies? If so, then this mod is perfect for you. Incubation Mod adds chicken nests that make collecting eggs easier and some new foods that can be […]

Hyperbox Mod (1.21.1, 1.20.1) – A Portable Factory in One Block
1.21.1neoforge

Hyperbox Mod (1.21.1, 1.20.1) – A Portable Factory in One Block

Hyperbox Mod adds a special block that contains its own small dimension inside. Each Hyperbox you create has a unique space within it. You can pick up the block and move it anywhere, and the dimension inside will move with it. This lets you build complex machines or bases that take up very little space […]

Create Picky Wheels Mod (1.21.1, 1.20.1) – Balance Your Power Systems
1.21.1neoforge

Create Picky Wheels Mod (1.21.1, 1.20.1) – Balance Your Power Systems

Create Picky Wheels Mod is a gameplay balancing addon for the Create mod that alters the behavior of waterwheels and windmills. Waterwheels now only function if placed within a river biome and submerged in a large body of water, while windmills require open space around them and only generate power in the Overworld. Features: Modifies […]

Miniature Power Plant Mod (1.21.1, 1.20.1) – Compact Energy Solutions For Tech Builds
1.21.1neoforge

Miniature Power Plant Mod (1.21.1, 1.20.1) – Compact Energy Solutions For Tech Builds

Miniature Power Plant Mod is a mod that introduces compact, efficient power generation options to Minecraft. Designed for players who want to manage energy production in smaller spaces, this mod offers a variety of miniaturized power plants that are perfect for tight builds, technical setups, or modded automation systems. Features: Adds compact, space-saving power generation […]

Mekanism Extra Mod (1.21.1, 1.20.1) – Naquadah Reactor, Ores, and More
1.21.1neoforge

Mekanism Extra Mod (1.21.1, 1.20.1) – Naquadah Reactor, Ores, and More

Mekanism Extra Mod introduces the Naquadah Reactor, which functions similarly to a Fusion Reactor, using different fuels for energy production. It also adds Naquadah Ore, which can be found deep in the Overworld and the End, along with new storage options like Absolute, Supreme, Cosmic, and Infinite Bins, Energy Cubes, Fluid Tanks, and Chemical Tanks, […]

S
1.21.1neoforge

Small Town

Explore a vibrant world, engineer colossal Create factories, build functional airships and rockets, and shape a beautiful home—surrounded by richer wildlife, food, structures, sound, and atmosphere.

1.2kdownloads
U
1.21.1neoforge

Unbound Adventures Into the Unknown

Unbound Adventures: Into the Unknown blends exploration, tech, magic, and space travel. Build with Create, cast spells with Ars Nouveau, and manage your loot with powerful storage mods.

59downloads
I
1.21.4fabric

InventoryRightclickBackspace

Makes it so u can use backspace as right click in inventory for people that dont want to set up keyboard place and want to rebind their rightclick to backspace and still use is as right click in minecraft.

35downloads
P
1.21

Project SFB

Project SFB introduces experimental rocket payloads that turn ordinary fireworks into powerful tactical weapons.

24downloads
[Cosmics] Television (Summer Update ☀️🌴)
1.21.1neoforge

[Cosmics] Television (Summer Update ☀️🌴)

A mod that adds tvs to your minecraft world!

8.1kdownloads
Astro Engineers Expert
1.20.1forge

Astro Engineers Expert

This is an expert-style modpack that blends magic and technology, challenging players to progress through intricately connected mods. From mystical beginnings to space-faring technology.

5.6kdownloads
Astran[DELAYED]
1.21.1neoforge

Astran[DELAYED]

Enhance each of your limbs with Outer Space ressources

4.4kdownloads
Mooltitools
1.21.8fabric

Mooltitools

Mooltitools is a mod that adds powerful multifunctional tools combining pickaxe, axe, shovel, and sword in one. Save inventory space and switch less perfect for those who value speed, versatility, and efficiency in every adventure.

1.6kdownloads
Better Elytra Boost
1.21.1neoforge

Better Elytra Boost

Adds a new item for Elytra boosting, serving as a replacement for rockets.

1.5kdownloads
Capital Industries Server
1.21.1neoforge

Capital Industries Server

A fast, multiplayer-focused Create mod-pack built for massive automation, optimized performance, nuclear power scaling, and expanded exploration across planets.

1.5kdownloads
Big Bang
1.21.1neoforge

Big Bang

Big Bang is a space exploration mod for Minecraft. Travel through space, discover new planets, and experience galactic-themed content inspired by classic space mods like Galacticraft.

1.4kdownloads
RECobblemon
1.21.1fabric

RECobblemon

Cobblemon modpack with the 1025 Pokémon ¤ pokemon raid ¤ ultra space ¤ Gacha machine ¤ Radiant Shiny

1.4kdownloads
Voidscape - To space!
1.21.1neoforge

Voidscape - To space!

Explore the void between the planets.

571downloads