Minecraft Java 1.21 Mods
Browse 54 free mods for Minecraft Java 1.21 — popular picks include Contained Opolis (A Space Adventure), Planeta Vegetta (Unofficial), Exodus (Space Mission) | Stellaris & SPACE QUESTS!.
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Contained Opolis (A Space Adventure)
A space based skyblock style modpack
Planeta Vegetta (Unofficial)
All the mods from the new Vegetta777 series!
Exodus (Space Mission) | Stellaris & SPACE QUESTS!
Conquer the universe with Stellaris, the best space mod for the latest version! Play with quests!
Cosmic Frontiers
A journey lost through space and time. A Gregtech Modpack focused on sci-fi and arcane themes.
No Man's Craft
Explore infinite planets !
Cobblemon Explorers!
Explore all kinds of vast beautiful landscapes in this Vanilla ++ modpack! (even in different planets!)
Thormen 1.21.1 - Mekanism - Spaceships - ICBMs - Force Fields - Nuclear Science - Voltz successor - Modpack server running
Voltz as it should have been. Yes, it has ICBM's, and you bet - lots more
Beyond Cosmos
Space Exploration Pack with Custom Code And Storyline!
Spaceward Expansion
Bring Space to Minecraft
Starflight Innovation
A different approach to gameplay and aesthetics for a space exploration mod. One might call it rocket science...
From Spears to Gears
This modpack will take you through the ages of our civilisation! From the Bronze Age to the Space Age. Completely reworked combat system and amazing armor and weapons to fit the theme
Galaxy Under Chaos - A Star Wars Experience
"Galaxy Under Chaos" is a Minecraft Star Wars mod where players explore a galaxy in turmoil. Discover unique planets and powerful technology. Customize lightsabers, face new mobs, and navigate an ever-changing universe full of chaos and mystery.
Space Race 5
Tech up, go to space, and conquer the galaxy! Galacticraft Space Race series, #5!
Smp Craft
The modpack is based on exploration of space , automation and dungeons
The Next Tomorrow Cobblemon (NO LONGER IN USE)
The Next Tomorrow is a heavily-modded Minecraft 1.21.1 Cobblemon Modpack designed as a fully-custom, story-driven Pokémon-style survival world. It blends exploration, tech, strategy, and cosmic mystery into one cohesive experience.
Multiversal Misadventures - The Blockhead's Guide to the Galaxy
Traverse Infinite Dimensions to find a way to escape back to "normal" Minecraft in a truly unique experience!
Beyond The Ocean
A Mod that let´s you explore beyond the oceans of minecraft. New ocean themed planets on a post End level difficulty. New structures, mobs, items and technologies. New adventures and a new story ready to be told.
Project Conquest
A action pack rpg game with multi player and over 3 new worlds plus space based on a show called invincible with many powers and bosses plus npcs where you have to destroy worlds or bring peace and fight many foes and complete the story line
Cobblemon: Path Of Legends
Become a Pokémon Master! Train hard, battle harder. Defeat Team Rocket. Customize your journey. Join our community. Rise to the top!
Over Club - MidSeason
Explore the steampunk world, its mysterious structures and endless space!
Rockets & Dragons
For our good friend BrianAllenMW who passed away in Aug 2025
The Ultimate Interplanetary Project
A different approach to the Interplanetary Project pack that combines tech, magic and exploration with space and astral bodies as destination options.
Cobblemon Galaxy By Galaxy Dog
This is a cobblemon modpack with more integrations maked to have more fun and play with more features (cobblemon maps, pokemon menu, cobblemon addons)
Create Aeronautics Space Age
Merging Create Aeronautics with space exploration.
New Century Adventure
Let's go! It didn't start with the roar of a rocket, but a soft call from the depths of consciousness!
Stellar Foundry
Stellar Foundry is a beginner-friendly tech, automation, and space progression modpack for Minecraft 1.21.1 NeoForge. Build your first factory, master advanced logistics, launch into space, and create an interplanetary industrial network.
Create Areo Naughts
Create: Areo Naughts Is a all inclusive Create, Minecolonies, Space exploration mod With Big cannons and Areonaughtics.
Galaxymon
Pixelmon with a bunch of quality of life mods
MedievalMon
Automate, organize, and explore a Pixelmon world with Create, AE2, Waystones, and quests through gyms and Ultra Space, all boosted by smart QoL mods.
horror things
its a horror game with the create mod and space how will this go
Createland
A modpack that combines technology, magic, and endless creativity! Automate your world with steam power, explore space with custom-built rockets, rely on high-tech, and dive into the fascinating world of magic. 🚀✨
Random House - Interestelar
Travel through space in Random House 6!
Cobble Astral (Cobblemon)
Cobblemon Astral is a modpack based on the Minecraft mod that integrates Cobblemon (a Pokémon-inspired mod) with a space/astral theme, adding interplanetary exploration, advanced technology, and new challenges.
Glowstone Galaxy Create Edition
The glowstone galaxy community modpack, featuring Create, minecolonies and farmers delight!
Create Beyond Horizons
Create new horizons from the ground to space.
Crossfate Adventures (Now for NeoForge!)
Embark on a journey to discover the truth of the Overworld, and its connections to other worlds! Travel to other dimensions, to space, interact with new fauna and flora, and find new structures!