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Minecraft Java 1.21 Mods

Browse 146 free mods for Minecraft Java 1.21 — popular picks include Bunker plugin, error killer, Pocket Lint.

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Bunker plugin
1.19

Bunker plugin

A social deduction RPG minigame where players must justify their value to survive the apocalypse in a limited-space shelter.

93downloads
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

91downloads
Pocket Lint
1.21.1fabric

Pocket Lint

A progression mod built on the paradox of scaling worthless domestic debris into god level cosmic utility.

89downloads
More Firework Rockets
24w40a

More Firework Rockets

adds more power to firework rockets

88downloads
AdvancementFireworks
1.21.1neoforge

AdvancementFireworks

It's a simple mod that only celebrates the player's achievements by launching rockets; nothing out of the ordinary.

78downloads
Bundle plus
1.21

Bundle plus

Bundle+ is a plugin that adds extra space in your bundle and easy to handle gui and smart storage system

76downloads
Cobblemon // Project: Spacetime
1.21.1neoforge

Cobblemon // Project: Spacetime

A Cobblemon side-mod that adds space-time distortions to Cobblemon, inspired by Pokemon Legends: Arceus.

67downloads
Thijns Combat Tweaks
1.21spigot

Thijns Combat Tweaks

A Minecraft plugin that enhances combat mechanics with crossbow rockets, tipped arrows, and splash p

66downloads
Planet - Border teleport
1.21.1neoforge

Planet - Border teleport

Border-teleport mod: teleports entities crossing world borders (±326) to opposite side. Perfect for 1:326 Earth maps. Open-source (remix allowed, but must keep code open).

65downloads
Create: Celestial Mechanics
1.21.1neoforge

Create: Celestial Mechanics

Launch yourself into space with the Create mod!

65downloads
starwars-galaxy
1.20

starwars-galaxy

StarWarsGalaxy is a Minecraft Spigot/Paper plugin currently in development that aims to deliver a Star Wars RPG experience with factions, Force abilities, lightsabers, planets, missions, and economy systems

63downloads
Toasts Abilities
1.21.11

Toasts Abilities

A data pack that adds 7 different custom classes, each with a ability, ultimate and a passive to improve combat. They are: Wind, Electric, Space, Sculk, Life, Metal and Oceanic

54downloads
Only Auto-jump!
1.21.8fabric

Only Auto-jump!

deletes your ability to jump by yourself using Space

51downloads
TheHandOKill
1.21.1neoforge

TheHandOKill

Small mod adds the iconic "space erasure" sound that plays every time you kill a mob with a single hit

48downloads
MagicFactory
1.21.4neoforge

MagicFactory

Mod adding a new liminal space

42downloads
ChronoShift
1.21.1fabric

ChronoShift

Adds time manipulation mechanics with the Time Coil staff and introduces a dark cosmic biome with unique blocks, flora, and shards.

41downloads
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

41downloads
SolarPlugin
1.21.11

SolarPlugin

A solar system PvP experience where players are assigned to a planet, each with unique abilities powered by a gem that grows stronger with every kill.

39downloads
Unslotted
1.21.1neoforge

Unslotted

Removes a considerable portion of your inventory slots, turning them into a space you can drag items around freeform instead.

36downloads
WindRocketJumper
1.21.11fabric

WindRocketJumper

A client-side mod that adds fire particles and a blur effect when performing a powerful launch using a Wind Charge (configurable in the mod's config). The number of Wind Charges in the slot is now displayed only while holding the Shift key.

33downloads
SpaceAccents
1.21

SpaceAccents

A minecraft plugin that allows adding new, customizable accents to your minecraft server!

28downloads
HealthIndicatorss
1.21.1forge

HealthIndicatorss

Shows health hearts, HP, armor and distance above mobs and players in world space. Toggle visibility with V key.

16downloads
Destroying MC Mod (1.21.1, 1.21) – Unleash Chaos
1.21.1fabric

Destroying MC Mod (1.21.1, 1.21) – Unleash Chaos

Destroying MC Mod lets you unleash five catastrophic events-like nukes, black holes, and even planetary collisions-into your Minecraft world. It’s built mostly for spectacle: dramatic visuals and chaos-based mechanics, rather than deep crafting or long-term gameplay. Features: Trigger epic destructive events (nuke, black hole, supernova) at any location. Both visual and destructive mechanics-some effects alter […]

Extra Inventory Mod (1.21.10, 1.20.2) – Carry More Worry Less
1.21.10fabric

Extra Inventory Mod (1.21.10, 1.20.2) – Carry More Worry Less

Extra Inventory Mod adds two additional rows to the player's inventory, providing more space for items and reducing the need to frequently clear out clutter. This mod is designed to integrate with the vanilla Minecraft experience, offering a straightforward solution for players who desire a larger inventory without altering core gameplay mechanics. Features: Adds two […]

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 […]

Flight Mod (1.21, 1.20.1) – Glide With Hunger Not Rockets
1.21fabric

Flight Mod (1.21, 1.20.1) – Glide With Hunger Not Rockets

Flight Mod lets you fly in survival mode by consuming hunger instead of using Elytra or creative mode. It’s a lightweight, client-friendly way to add immersive flight mechanics without breaking balance Features: Enables hunger-based flight in survival, no Elytra or rockets needed Costs food per tick, per meter flown horizontally, and per meter climbed Includes […]

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 […]

Fox's Handheld Cannon Mod (1.21.4, 1.20.1) – A Fun Mix Of Mobility And Explosion
1.21.4forge

Fox's Handheld Cannon Mod (1.21.4, 1.20.1) – A Fun Mix Of Mobility And Explosion

Fox's Handheld Cannon Mod introduces a new item that allows players to perform rocket jumps and deal explosive damage in Minecraft. Each ammo type provides a different effect: gunpowder launches you backward, TNT sends explosives flying, and fire charges launch explosive fireballs. Features: Rocket Jump Mechanic: Launch yourself into the air using gunpowder, great for […]

Force Crawl Mod (1.21.1, 1.20.1) – Control Your Minecraft Crawl!!!
1.21.1fabric

Force Crawl Mod (1.21.1, 1.20.1) – Control Your Minecraft Crawl!!!

Force Crawl Mod allows players to manually control when they crawl. By assigning a key to initiate crawling, players can navigate through tight spaces and create new gameplay strategies that weren't possible with the default crawling mechanics. Features: Crawl Control Modes: "Toggle" and "Hold" options for initiating and maintaining the crawling action with a designated […]

M
1.21.10

Minecarts Load Chunks

A quick and dirty data pack to load a 3x3 chunk space around every minecart in the world.

329downloads
O
1.21

Omni Space

A Minecraft Paper plugin that provides players with private storage dimension spaces.

48downloads
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
KingCraft [FORGE]
1.21.1neoforge

KingCraft [FORGE]

Travel to a different planet? Fight new bosses? Discover new game mechanics? Welcome here.

17kdownloads
Create Stellaris Mod (1.21.1) – Build Space Rockets with Mechanical Assembly
1.21.1

Create Stellaris Mod (1.21.1) – Build Space Rockets with Mechanical Assembly

Create Stellaris Mod extends Create with space-themed recipes and industrial automation lines. It connects kinetic engineering with space travel parts by letting you construct rocket components using mechanical contraptions. You can crush raw blocks, mix new metal alloys, and run sequenced assembly tracks to manufacture rocket parts. Features: Crush any type of ice block into […]

Spidertron Mod (1.21.1, 1.20.1) – Ride a Giant Nuclear-Powered Spider
1.21.1

Spidertron Mod (1.21.1, 1.20.1) – Ride a Giant Nuclear-Powered Spider

Spidertron Mod extracts the massive walking vehicle from Real Time Chemistry 2 and puts it into its own standalone mod. This mod gives you a giant, nuclear-powered mechanical spider that you can ride into battle. It acts as a late-game weapon platform that climbs over terrain, shoots rockets, and crushes enemies. You get to control […]

Firework Frenzy Mod (1.21.1, 1.20.1) – Rebalancing The Firework Crossbow
1.21.1

Firework Frenzy Mod (1.21.1, 1.20.1) – Rebalancing The Firework Crossbow

Firework Frenzy Mod is an overhaul of how Firework Rockets and the Crossbow interact in the game. The mod changes how Firework Rockets work, making them more versatile and fun to use. It improves how the Crossbow utilizes Firework Rockets, adding new mechanics and effects. Self-damage from Firework Rockets no longer grants invincibility frames, adding […]