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Minecraft Java 1.21 Mods

Browse 12 free mods for Minecraft Java 1.21 — popular picks include Cobblemon fast mounts, Alien AGF Series, galactic create.

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Cobblemon fast mounts
1.21.1

Cobblemon fast mounts

increases riding speed of bird/ufo/rocket cobblemon in 1.7+

874kdownloads
Alien AGF Series
1.21.1neoforge

Alien AGF Series

A modpack that brings technology from Mekanism, space travel from Ad Astra, and Xenomorphs from Gigeresque to create a grand suspense filled adventure! Help AGF (Anomaly Glitch Foundation) find the xenomorphs to either contain them or irradicate them.

23kdownloads
galactic create
1.21.1neoforge

galactic create

A massive Create addon introducing oxygen mechanics, custom planets, inter-dimensional spacecraft, alien mobs, and procedural space structures.

12kdownloads
Cobblemon No Man's Craft Compatibility Patch
1.21.1

Cobblemon No Man's Craft Compatibility Patch

Fixes Cobblemon not spawning and asphyxiating on alien planets

2.5kdownloads
Aliens & UFOs
1.21.8fabric

Aliens & UFOs

A mod that adds Aliens, their spaceships and much more!

1.9kdownloads
Space Alien.xo GUI
1.21

Space Alien.xo GUI

Colorful Spaced And Themed.

1.3kdownloads
Space Alien.xo GUI Resource Pack
1.20.5

Space Alien.xo GUI Resource Pack

1.20 Colorful Spaced And Themed Resource Pack. This a cute, space-themed Minecraft resource pack that gives the game a soft, pastel sci-fi aesthetic inspired by aliens, stars, planets, UFOs, and cosmic colors. It retextures a variety of UI elements, items,

121downloads
Alienated
1.21.8neoforge

Alienated

Adds a whole new planet to explore!

54downloads
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 […]

Gregicality Rocketry Mod (1.21.1, 1.20.1) – Reach For The Stars
1.21.1neoforge

Gregicality Rocketry Mod (1.21.1, 1.20.1) – Reach For The Stars

Gregicality Rocketry Mod is a comprehensive addon for GregTech: New Horizons that integrates advanced rocketry and space exploration mechanics. It introduces a suite of high-tech components and systems, allowing players to build and launch custom rockets, explore new celestial bodies, and harness extraterrestrial resources. Features: Design and construct customizable rockets with modular components.​ Explore new […]

Better Ghast Remastered Resource Pack (1.21.1, 1.20.1) – Texture Pack
1.21.1

Better Ghast Remastered Resource Pack (1.21.1, 1.20.1) – Texture Pack

Better Ghast Remastered Resource Pack overhauls the Ghast mob, transforming it into a more imaginative version that resembles jellyfish or other sea creatures. The pack features eight unique micropack models, each offering a different take on the Ghast, with designs that evoke an alien or cosmic aesthetic. While retaining the classic Ghast face and tentacles, […]

Prismatic Wormhole Voids Mod (1.21.1, 1.20.1) – Travel Through Wormholes
1.21.1

Prismatic Wormhole Voids Mod (1.21.1, 1.20.1) – Travel Through Wormholes

Prismatic Wormhole Voids Mod introduces the Ultra Space dimension into Minecraft alongside five alien biomes. You can travel across dimensions by walking through floating entity wormholes that appear naturally in your world. Each area features distinct landscapes and strange environmental traits using vanilla blocks. The mod runs on its own without needing extra creature mods […]