Minecraft Java 1.21 Mods
Browse 151 free mods for Minecraft Java 1.21 — popular picks include Smeshariki: Otherworld, Delivery Rocket Mod, error killer.
Updated daily
Smeshariki: Otherworld
A mod featuring diverse space content in the spirit of Galacticraft.
Delivery Rocket Mod
This mod adds rockets, which deliver items!
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
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.
Mars Renaissance
The Mars Planet add to Minecraft!

Duststorm
Survive a crash landing on the scorching hot distant planet of Tiziria.
Create: Celestial Mechanics
Launch yourself into space with the Create mod!
BLOCKID Display
Displays the namespaced block ID (including water/lava) and block facing direction in the ActionBar.
Simple keys
This mod lets you see what keys your pressing like wasd and space bar
Cosmic Blaze
Cosmic Blaze lights up the night with fiery space visuals, bringing warmth and energy to Minecraft's nighttime landscapes.

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!
MagicFactory
Mod adding a new liminal space
Alienated
Adds a whole new planet to explore!
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
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
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
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
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
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
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
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
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
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, […]
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.
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.
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.
Project SFB
Project SFB introduces experimental rocket payloads that turn ordinary fireworks into powerful tactical weapons.
[Cosmics] Television (Summer Update ☀️🌴)
A mod that adds tvs to your minecraft world!
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.
Astran[DELAYED]
Enhance each of your limbs with Outer Space ressources
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.
Better Elytra Boost
Adds a new item for Elytra boosting, serving as a replacement for rockets.
Capital Industries Server
A fast, multiplayer-focused Create mod-pack built for massive automation, optimized performance, nuclear power scaling, and expanded exploration across planets.
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.
RECobblemon
Cobblemon modpack with the 1025 Pokémon ¤ pokemon raid ¤ ultra space ¤ Gacha machine ¤ Radiant Shiny
Voidscape - To space!
Explore the void between the planets.