Forge Mods for Minecraft 1.21
Browse 141 free Forge mods for Minecraft 1.21 — popular picks include Elliemore's Deep waters, Old fisherman swamp house, Animal Garden - Manatee.
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Elliemore's Deep waters
Mermaids dimension
Old fisherman swamp house
adds an old fisherman’s house to swamp biomes, with villagers and aquatic mobs beneath it
Animal Garden - Manatee
This mod adds the gentle giant the manatee(sea cow) into the game.
Unnamed Sea
Additional structures for the sea and beach biomes, focusing on an immersive expansion for the vanilla game.
Animal Garden - Sea Otter
Adds tamable Sea Otter into the game, that will fight and protect you.
Animal Garden - Bull Shark
This mod adds the aggressive underwater creature, the bull shark into the game.
Villager Warship
Adds a big villager warship to the oceans
Lios Seafaring Dungeons
Complex Underground & Oceanic dungeons!
Lost Ocean Colosseum Runes
Adds a Lost Ocean Colosseum Runes to warm Ocean Biomes
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
Illager Viking Longship
Adds an Illager Viking Longship to cold ocean biomes.
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.
Better Cave Worlds
Datapack that creates Cave Worlds, based on the old preset, featuring all biomes, ocean caves, and most structures.
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
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.
fapdos' Aquatic Additions
Adds many new fish creatures and underwater decorations to the game
In the depths
A mod that adds a gigantic creature to the deep oceans of Minecraft.
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
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!
Kylin Arm
add a curios that allow mining blocks with bare hands and increase mining speed when equipped, ignore mining slowdowns in air and underwater.
Wild Animals
This datapack adds elephants, jellyfishes, sharks and more, without causing lag to the server! No resource pack required
Ocean Mermaid Statue
Adds a large underwater Ocean Mermaid Statue with drowned and hidden treasure
Sunken Warrior Statue
Adds a Sunken Warrior Statue to the ocean floor
Do you like sharks? UwU
Shark furry mod
Aqua Geode
Aqua Geode adds a spherical structure to the oceans. There's a chest inside!
Space's Sponge Crafting Recipe
Adds a vanilla-friendly, ocean-themed crafting recipe for the uncraftable Sponge block.