Minecraft Java 1.21 Mods
Browse 860 free mods for Minecraft Java 1.21 — popular picks include Stellar Depths, SpaceFrog's Hungry Hungry Frogs *FroggyCraft Addon*, Cosmic's Creatified Elytra.
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Stellar Depths
Drift through cosmic emptiness. A space exploration mod built around scale, silence, and the unknown.
SpaceFrog's Hungry Hungry Frogs *FroggyCraft Addon*
Adds FroggyCraft-specific hostile mobs to the frog food list of SpaceFrog's Hungry Hungry Frogs (can be used with any modded mods found in the FroggyCraft modpack)
Cosmic's Creatified Elytra
Reskin your Elytra to better match with the Create Mod Aesthetic!
Rockin' Rockets
Custom firework textures that distinguish flight duration and ingredients
浩瀚宇宙(Infinite Space)
这是一个浩瀚的宇宙,有许多维度,绿钻石红宝石青钻石黑钻石等。This is a vast universe with many dimensions, including green diamonds, red rubies, blue diamonds, and black diamonds.
Northstar Aeronautics Compat
Adds a block allowing Aeronautics vessels to go between planets, including contraptions and other attached vessels.
PriorityQueue
Make space for your VIPs on your server
Fantastic Smelting
A small mod to boost your smelting-experience. Allows you to smelt raw resource blocks, saving you time and space.
Astro-Mons
A space-themed Cobblemon modpack along with a dedicated server. This pack brings together a colorful adventure with the inclusion of many new biomes and companion cobblemon past the base mod.

TickWarpSleep
Changes sleep to skyrocket the game's tick rate instead of flat out skipping through a night or thunderstorm. Makes the grind a little easier, and may set your server on fire!

Samsara Mono
A serif monospaced font.
Space's Chainmail Armor crafting
Chainmail Armor is now craftable using actual Chains! A vanilla-friendly datapack that fills the armor gap and gives the Chain item a much-needed purpose.
Cosmic Ender Pearl
this resource pack changes the texture of ender_pearl into a galaxy themed cosmic ender pearl
Terceira Guerra Mundial BR
Embark on a tech and automation saga with an expert-style progression through Ages, evolving from rustic engineering to interplanetary exploration.
Astrocraft Round Planets
Resource Pack for Astrocraft Fabric mod
SpaceFrog's Recolored Frogs
This pack replaces the white/gray skin of warm variant frogs with a bright green one and adds a new dark green skin for cold frogs.

Firework Durability
Add durability to firework rockets
Even more Fantastic Smelting
A small mod to boost your smelting-experience. Allows you to smelt raw resource blocks, saving you time and space. Adds various recipes from the furnace to the blast furnace.
Nebula Obsidian
This project changes the texture of the boring looking obsidian to a very cool galaxy themed obsidian

PowerRocket
A comprehensive flight assist mod featuring 6 tiers of power rockets, elytra boost, auto-protection systems, and fully customizable HUD displays.
Little Adventure
Adds a backpack for extra inventory space, a torch wand for quick lighting, a mine helmet, and changes some item mechanic like holding compass will show coordinates and clock will display time.
Create: Way Beyond
A Create: Aeronautics Based Modpack which takes you to space.

Unorthodox Space Travel
A ModPack About Twisting Reality in the most bizarre ways
Better Elytra Flying
When you are flying with an elytra or take off, you can click space to quick use a firework in your hotbar.
NeoStorage
This is a simple mod that adds a storage to save space in chests
Carpet Sky Additions Miller's Planet
Carpet extension providing a world like Miller's Planet from movie Interstellar, with new ways to obtain resources.
Police Space Chase
Get chased by the police for committing crimes! Reset your heat level by escaping. No resource pack
Way(More)Points
Tired of lodestone compasses taking up inventory space? Repurpose them as lodestone waypoints and see important locations on your HUD! Customize each waypoint with over 50 million combinations.
SpaceFlaresX / EnvoysX - Extremely Configurable! [Recoded]
A plugin that adds summonable supply crates to Minecraft.
Space's Fast Paths
Sprint faster on established trails with a seamless movement speed boost exclusive to Path blocks.
Compactible Mob Drops
Now you can compress mob drops into compact blocks to save space!
Cobblemon Planet
A modpack centered around the Cobblemon mod with quality-of-life enhancements and performance optimizations.
Planet Craft
A mod to create a universe with Planets, Suns and Black Holes all customizable to your liking.
GOTG 3 Music
Changes the default disk music to the Guardians of the Galaxy 3 soundtrack
Space Explore
This mod allows you to explore an entire galaxy of unique planets
Bordecor 's GalaxyExplorer
Embark on an interstellar adventure exploring distant galaxies, planets, and cosmic wonders.