Minecraft Java 1.21 Mods
Browse 751 free mods for Minecraft Java 1.21 — popular picks include Aetherial Islands, One Survival Island, Sunveil.
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Aetherial Islands
Datapack that creates a whimsical floating islands world, with mountains, rivers, and floating ocean bowls!
One Survival Island
Datapack that creates a Single Survival Island in an Infinite Ocean World
Sunveil
Enhanced Minecraft visuals with dynamic sun-tracking shadows, crystal-clear underwater exploration, warm golden lighting, and smooth anti-aliased shadow edges. Features realistic water reflections and optimized performance for all worlds.
Illager Viking Longship
Adds an Illager Viking Longship to cold ocean biomes.
Tidal
Adds ambient tidal waves to beaches and oceans!
Animal Garden - Harp Seal
This mod adds the harp seal as tamable mob to the frozen ocean biome!
Asian Illager Ship
Adds an Asian Illager Ship to Ocean Biomes
Treasures of the dead
This is a mod that adds new pirate enemies, structures and many other features, inspired by Sea of thieves.
Animal Garden - Narwhal
This mod adds the unicorns of the sea, the narwhals to the frozen ocean biomes.
Maxi's All Ride Mons! Mount all Cobblemon!
This data pack adds the possibility to ride all current Pokémon found in Cobblemon, for you to enjoy your journey across sky, sea and land.
Big Globe - YUNG's Better Ocean Monuments Compatibility
Data pack to generate YUNG's Better Ocean Monuments in a Big Globe world.
Sea Life
Bring oceans and rivers to life with new fish, items, and underwater machinery.
Better Cave Worlds
Datapack that creates Cave Worlds, based on the old preset, featuring all biomes, ocean caves, and most structures.
Unstable SMP Simulator
Pre-configured Unstable SMP battle simulator modpack. Includes: Final Law Battle, 2v1000 Law Battle, Great Sea Law Battle, Tournament, Cindercrest Battle, Lakerek VS Wemmbu, Law End Island Defense, Mist, Smuggler Path Law Fight, Underworld
Luminous Blocks
Luminous glass that emit light, perfect for underwater builds and for enhanced building aesthetics.
Pelagic Prehistory
Deep below the surface of the ocean exists an undiscovered wealth of life. Adventure down to the darkest depths to mine fossils and a brand new stone-type. Finally, use your hard earned materials to create machines for the future, and unlock life that may
Myths of The Sea
Discover new mythological aquatic creatures, such as the Leviathan, the Kraken, the Hippocampus, and many more!
Montana's Bushier Kelp
Changes the Kelp Texture to be fuller! Breathe life into your oceans!
Sea Weapons
A mod that adds new sea themed weapons to minecraft!
Skylands over the Sea
Datapack that creates sky island worlds floating over an endless ocean.
Revamped Floating Islands
Datapack that creates Floating Island worlds based on the old preset, with all biomes and structures. Additionally featuring floating oceans and rivers.
No More Ocean Monuments
Removes ocean monuments from the world generation.
Skeleton Ghost Ship
Adds a skeleton crewed ghost ship that spawns in ocean biomes
Unseaworthy
A mod that makes boats unsuitable for ocean voyages.
Villager Rafts
Adds stranded Villagers drifting across the oceans on wooden rafts.
No More Ocean Ruins
Removes ocean ruins from the world generation.
fapdos' Aquatic Additions
Adds many new fish creatures and underwater decorations to the game
BetterVannilaFishes
Dive into a more vibrant and diverse ocean. Re-imagined, re-animated, and re-alive.
In the depths
A mod that adds a gigantic creature to the deep oceans of Minecraft.
Water World
Raise sea level to 127.
100 Days on a Desert Island
Survive 100 days in Hardcore on a tiny island with minimal resources and endless ocean
Ocean's Delight Reforged
Ocean's Delight is an addon mod for Farmer's Delight based around adding culinary content to the ocean!
Illager Battleship
Adds an illager battleship to Ocean Biomes
Angel Islands
Datapack that creates worlds with floating islands over the oceans for the default world.
Deeper Oceans: Refabricated
Continuation of Apollo's Deeper Oceans mod for Fabric. Oceans 3x as deep as vanilla, with adjusted Ocean Monument placement.
Temperature Bands
Modifies world generation to place biomes into repeating temperature bands. Compatible with most worldgen mods. Now with humidity based on proximity to river and/or ocean too!