Minecraft Java 1.21 Mods

Browse 20 free mods for Minecraft Java 1.21 — popular picks include [HUGE UPDATE] Fisherman's Haven, Lavaflow, Fish Fix.

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20 mods

1.21.1neoforge

[HUGE UPDATE] Fisherman's Haven

A huge expansion for fishing and ocean exploration in Minecraft!

193kdownloads

1.21.11

Lavaflow

Completely overhauled Nether: Lava rivers on 2 heights with lavafalls between them, proper valleys, oceans, and new biomes and structures.

12kdownloads

1.21.1neoforge

Fish Fix

Amends hardcoded sea level assumptions to fix aquatic mob spawning.

7.7kdownloads

1.21

Create Simulated: End Sea Everywhere

Bare bones datapack that adds the End Sea from create simulated to other dimensions. Useful for Skyblock style modpacks.

5.2kdownloads

1.21.1fabric

Cyra

A Minecraft mod that reveals the secrets of the ocean!

3.3kdownloads

1.21.1neoforge

More Aeronautics Void Seas

Makes the Create Aeronautics End Sea spawn in the other two dimensions.

2.3kdownloads

1.21

Aquatic Plugin

This is a Minecraft Plugin wich adds many Ocean and Fish releated things to Minecraft

1.1kdownloads

1.21.11fabric

Exodus 14:27

Fixes MC-278019 bug to restore sea level in superflat worlds.

731downloads

1.21.5

Poseidon - Underwater Survival

Shipwrecked and stranded underwater. Breathe, build, and survive in a fully aquatic island world.

415downloads

1.11.2

Lava Oceans

simple datapack that makes all oceans lava

399downloads

1.21.11fabric

Water Enhanced

Expands ocean gameplay with new resources, gear, and aquatic mechanics while staying true to vanilla.

349downloads

1.21

Overworld - End Sea [Create Aeronautics]

This project adds an Aeronautics End Sea to the Overworld

270downloads

1.21.4neoforge

Aquatic Creatures

Did you know we know most about the space than own ours oceans? I want to make you feel that with this mod

242downloads

1.21fabric

No Boats

This mod removes all boats from Minecraft, forcing you to travel across water the slow way. It makes oceans feel bigger and exploration harder since you can’t just zip across huge distances anymore.

162downloads

1.21.1fabric

Aqua Verse

AquaVerse expands aquatic biodiversity of minecraft

129downloads

1.21.8neoforge

JellyFishy

Introduces a brand new mob for the ocean (Jellyfish) just like in real life this mob groups up (10-20 in a group) and basically just moves freely also dont touch em!

121downloads

1.21

[Aeronautics] Overworld End Sea

Enables Create Simulated/Aeronautics' End Sea mechanic in the overworld, for void-accessible worldgen

114downloads

1.21.4neoforge

Under The Seas

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

68downloads

1.21.5forge

Womp's Shellfish Mod (1.21.5, 1.20.1) – Fishing Just Got An Upgrade

Womp's Shellfish Mod adds new life into Minecraft’s oceans, lakes, and beaches by adding 9 new shellfish, 6 aquatic plants, and 30+ food items. It introduces a new fishing mechanic with shellfish traps and overhauls water-based worldgen. Features: 9 new shellfish that spawn across oceans, rivers, and beaches. 6 new aquatic plants for better underwater […]

1.21.1

Cybernetics Mod (1.21.1) – Upgrade Your Body with Custom Robotic Implants

Cybernetics Mod adds mechanical body parts and futuristic implants to your survival world. It lets you replace your character's limbs and organs with robotic upgrades to gain new abilities. You can become a fast ninja, a strong fighter, or even an underwater explorer depending on the parts you choose. The world also gets new dangers, […]