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Minecraft Java 1.21 Mods

Browse 283 free mods for Minecraft Java 1.21 — popular picks include SPMod, Temporal Horizons (Time Travel & Time Paradoxes), NLYB: Looting and Exploration.

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SPMod
1.21.1neoforge

SPMod

Reworked receiving of iron, making bed and a lot of new content

217downloads
Temporal Horizons (Time Travel & Time Paradoxes)
1.21.1fabric

Temporal Horizons (Time Travel & Time Paradoxes)

A time travel mod that lets you explore the time travel and its consequences in the same world.

214downloads
NLYB: Looting and Exploration
1.21.1neoforge

NLYB: Looting and Exploration

Shrink and store entire dungeons, temples, and villager houses then loot them safely from your base. (Never Leave Your Base)

197downloads
Isolated Creative
1.12

Isolated Creative

Lets players teleport to a completely isolated creative world that is separate from the main world

195downloads
Neko
1.21.4

Neko

A paper plugin that provides many features such as to create custom items or blocks

192downloads
Bingus SMP Content
1.21.1neoforge

Bingus SMP Content

Extra content made for the Bingus SMP.

189downloads
Smeshariki: Otherworld
1.21.8neoforge

Smeshariki: Otherworld

A mod featuring diverse space content in the spirit of Galacticraft.

186downloads
Heartcore Mode
1.21.5

Heartcore Mode

A Gamemode easier than Hardcore but harder than Survival. Ten Lives, lose a heart on death. Enjoy! Icon was originally made in Icons8 but then altered by me.

184downloads
Reawakened End
1.21.1neoforge

Reawakened End

An end update for Minecraft finally! Created by Pjluna and ShadowB.

182downloads
Better Campfire Cooking
1.21.1-rc1

Better Campfire Cooking

It makes campfires better by adding new recipies, doesn't impact performance much.

181downloads
The Pandoras Box
1.21.1fabric

The Pandoras Box

Pandoras Box adds a mysterious block that periodically generates random items from every installed mod. + New dimension

178downloads
Sellmenu
1.20

Sellmenu

Plugin for creating stores for your server Easy to use plugin supports itemadder itemedit itemtag plugins Must have vault

178downloads
Drop & Grow
1.21.5

Drop & Grow

Automatically plants dropped saplings. A great quality-of-life feature for clean inventories and farm automation that fits perfectly into vanilla survival

178downloads
SimpleChunks
1.21

SimpleChunks

An easy-to-use chunkloader with a modern GUI, teleport system, and secure permission management — ideal for farms, redstone, and automated systems.

178downloads
Overgrow
1.21.11fabric

Overgrow

Let the world OVERGROW itself.

177downloads
Corex
1.21

Corex

Modern, Paper-exclusive compiled scripting engine

175downloads
CyberWorldReset
1.8

CyberWorldReset

Easily reset a world with a scheduler or a specific time/date and more!

171downloads
Elomod
1.21.1neoforge

Elomod

An expensive survival & tech mod adding cameras, monitors, thermal vision, new ores, and more !

170downloads
UltraEvolution
1.20

UltraEvolution

🧠 Transform Minecraft mobs into intelligent, adaptive civilizations that learn, evolve, raid, build secret bases & upgrade gear. No more dumb mobs — ever.

170downloads
Gardon's Minerals Pack
1.21.1neoforge

Gardon's Minerals Pack

New More Ores and Gems to Minecraft!

168downloads
World Border Alert
1.21

World Border Alert

This plugin alerts you whenever you get closer to World Border

163downloads
Projection Boundary
1.21

Projection Boundary

Why use a boring invisible wall when you can turn the world border into a glitching, collapsing simulation?

162downloads
Ashen World
1.21.1neoforge

Ashen World

A Fallout-inspired survival mod for NeoForge that introduces radiation, mutations, contaminated environments, chem crafting, and dangerous evolutionary changes to your Minecraft world.

161downloads
Titanroot Skies
1.21.1neoforge

Titanroot Skies

A Minecraft society modpack with a focus on mechanical engineering, exploration, and rpg elements.

155downloads
Items, Crafts & World of the Realms of Runeterra
1.21.11neoforge

Items, Crafts & World of the Realms of Runeterra

This project introduces all the items, blocks, abilities and other gameplay mechanics not related to the world generation provided by the Core Package of Realms of Runeterra: A Tale of Relative Dimensions

154downloads
Enlivened End
1.21.1neoforge

Enlivened End

brings me life to the end with new blocks, biomes, items, and mobs, all in a vanilla-style way

144downloads
Skylife
1.21.4fabric

Skylife

A Skyblock with the goal to make everything different (at least a bit)

137downloads
Netheroreoverlay
1.21.11fabric

Netheroreoverlay

This is oreoverlay but in the nether, works exactly the same

134downloads
xDPearlCoolDown
1.21

xDPearlCoolDown

xDPearlCooldown improves gameplay balance by limiting how often players can use Ender Pearls, making combat more strategic and fair while staying lightweight and easy to use for server owners.

127downloads
Void_Filler
1.21.1neoforge

Void_Filler

Void Filler is a technology‑focused Minecraft mod built with an engineering‑driven approach to architecture, system design, and scalability.

124downloads
Safety is Nowhere
1.21.1neoforge

Safety is Nowhere

Dreams are real and so are nightmares. The world is corrupted, find the source of abnormalities.

122downloads
Under The Seas
1.21.4neoforge

Under The Seas

Discontiued For Certain Amount Of Time A new gameplay to minecraft by exploring the darkness of the sea

121downloads
Builder - Ai
1.2.1

Builder - Ai

🧠 AI Builds Turn imagination into reality. Let AI build structures directly in your Minecraft world using Gemini or Claude.

119downloads
THE HORRORS BUT BETTER
1.21.8neoforge

THE HORRORS BUT BETTER

THE HORRORS adds 4 new biomes more blocks more crafting tables like the de-radioactivator and the improved smelter and the fabricator and it adds more mobs and it is only to get updated more! updates: the start ,NUCLEAR WARNING!!!!!

117downloads
Project: Nuclei
1.21.1neoforge

Project: Nuclei

Adds uranium ore, lead ore and an enrichment process for making uranium rods. Also adds graphite rods (crafted with coal), a nuke, a radioactive seperator and various crafting components. In general this is a (kinda) scientific industrial progression mod.

115downloads
PLASTIC CRAFT
1.21.1neoforge

PLASTIC CRAFT

A unique expansion that introduces versatile plastic materials, custom building blocks, and tools to upgrade your Minecraft survival experience.

112downloads