Minecraft Java 1.21 Mods
Browse 750 free mods for Minecraft Java 1.21 — popular picks include Underwater Weapons (includes CIT file), Prex's Overhauled Mermaid Tail, SmallAquatic's Meat Mayhem.
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Underwater Weapons (includes CIT file)
Changes the appearance of the sword, axe and shield to an underwater appearance
Prex's Overhauled Mermaid Tail
A simple resource pack that replaces the Mermaid tail from the mod "Mermod" with a more detailed version!
SmallAquatic's Meat Mayhem
Can you beat this meat mod?
Enderberry :return safe location +teleport animals or villagers, alternative to Carry On /home /back /spawn
temporary alternative to Carry On ,recall bed,home command. allows players to bind and teleport animals, villagers, and aquatic creatures to desired locations, simplifying mob logistics.move mobs,portable mob,relocate,pick up
update aquatic part 2
this mod overhauls the entire ocean biome :}
Mermaid adventure
Get ready to live a great life of a mermaid with the mermod. You can now build your base underwater.
Sea Lantern Spectrum
Colourful Sea Lanterns!
The Reaper Leviathan
A mod that adds Reaper Leviathan from “Subnautica” to the deep oceans of Minecraft.
SGS Cogs & Creatures
This modpack is for the Swansea Gaming Society Create & Cobblemon hybrid pack
![AirBreather (reupload) [1.16 - 1.21]](https://pub-2ae937f770284535a96c3330f91236aa.r2.dev/thumb/spiget/385083.webp)
AirBreather (reupload) [1.16 - 1.21]
Breathe underwater with a customizable Air Mask!
goldenshark12's villagers fresh animations compat
adds compatibility for fresh animations (by freshLX) to goldenshark12's villagers
Abyssal Horizon Mod (1.21.11, 1.20.1) – Build Underwater Bases in an Oceanic
Abyssal Horizon Mod introduces a deep ocean dimension filled with underwater biomes, aquatic creatures, and sunken structures. This mod provides a dedicated aquatic realm where players can build underwater bases, tend submerged farms, and challenge a dangerous sea boss. It includes water-friendly items like waterproof doors, customizable chandeliers, and unique marine minerals. Features: Adds four […]
Hadopelagic Reach Mod (1.21.1, 1.20.1) – Survive Deep Ocean Depths
Hadopelagic Reach Mod transports players into a deep underwater realm filled with dark biomes, dangerous predators, and giant bosses. Players enter this aquatic world by entering a typhoon, encountering extreme water pressure, toxic zones, and hidden chasms. The mod adds tameable sea life, mountable sea creatures, rare crafting ores, and powerful combat gear tailored for […]
Skybound Engineering Alpha Modpack (1.21.1) – Build And Fly Moving Machines
Skybound Engineering Alpha Modpack lets you design custom airplanes, hot air balloons, and off-road cars that move smoothly through your world. You can build functional vehicles out of ordinary blocks, mount big cannons to your ships, and explore land, sky, and sea with realistic physics. Features: Simplified Weight Physics: Uses a clear five-tier weight system […]
Abyssal Tides Mod (1.21.1, 1.20.1) – Build Underwater Bases in a Vast Ocean
Abyssal Tides Mod introduces a deep ocean dimension built for underwater survival. It fills the world with submerged biomes, sea plants, and custom marine life. You can explore sunken ruins, collect rare sea resources, and fight a powerful ocean boss. The mod focuses on creating a complete aquatic environment for players who want to build […]
Tank Boat Resource Pack (1.21.11, 1.20.1) – Turn Vanilla Boats Into Armored
Tank Boat Resource Pack replaces standard wooden boats with miniature tank models across your rivers and oceans. This pack turns everyday boat trips into fun military patrols across water and ice. Different wood types change the vehicle colors to match your chosen materials. It keeps standard boat physics while providing a fresh mechanical theme for […]
Frosthaven Villages Data Pack (1.21.11, 1.21.1) – Trade and Survive in Frozen
Frosthaven Villages Data Pack generates bustling settlements on floating icebergs across cold ocean biomes. The upper city offers a safe haven with mob-proof paths to keep both travelers and local villagers protected. Beneath the surface, the structure contains hidden rooms and underground pathways tucked behind secret entrances. Every trading workstation is included, giving you access […]
IR DE Ket's Global Train Pack for Immersive Railroading Resource Pack (1.21.1, 1.20.1)
IR DE Ket's Global Train Pack for Immersive Railroading Resource Pack adds real-world locomotives and passenger cars for Immersive Railroading. This pack brings trains from North America, Europe, Asia, and Oceania straight onto your tracks. You can drive historic steam engines, run fast electric trains, or haul passengers with classic diesel locomotives. Every vehicle comes […]
Aeronautics Winds & Weather Mod (1.21.1) – Sail Oceans and Skies with Real Wind
Aeronautics Winds & Weather Mod adds wind physics, weather systems, and sailing mechanics for Create and Create Aeronautics. It brings working cloth sails, ship steering parts, and over a dozen weather types to your skies and oceans. Wind speed changes with altitude and pushes your ships forward based on how you trim your sails. You […]
Integrated Seven Seas Data Pack (1.21.1, 1.20.1) – Battle Hostile Pirate Ships
Integrated Seven Seas Data Pack overhauls the structures from When Dungeons Arise – Seven Seas. It decorates ship interiors using blocks and items from Create, Quark, Supplementaries, and Farmer's Delight. The data pack adds more monsters inside each vessel and balances chest loot for survival gameplay. Every ship now spawns only in deep ocean waters […]
SpiralGenesis
Paper/Folia: spawns each new player on a safe 500x500 plot in an expanding spiral, free of oceans, ravines, and cliffs.
Pelagic Prehistory Mod (1.21.1, 1.20.1) – Revive Prehistoric Sea Monsters
Pelagic Prehistory Mod adds prehistoric sea creatures and fossil excavation to ocean biomes. It lets you search the sea floor for ancient sediment to extract DNA and bring extinct marine animals back to life. You can also find living cuttlefish and dugongs, plant ancient trees, and craft specialized revival machinery. Revived animals safely drop as […]
Blue Depths Resource Pack (26.2, 1.21.11) – Lively Ocean Creatures
Blue Depths Resource Pack supplies custom models, textures, and visual assets for a lively aquatic world. It covers fresh and saltwater habitats by giving distinct looks to predators, small fish, workstations, and a dangerous sea boss. Players can see each stage of a creature growing up, from tiny babies to full adults. Features: Supplies custom […]
Terrarium Expanded Mod (1.21.11, 1.21.1) – Travel Across Real Earth Continents
Terrarium Expanded Mod generates a real-world Earth overworld in Minecraft using actual elevation and map data. It replaces standard world generation with real global terrain, surface water, and biome layouts. The mod lets you pick different zoom levels to explore realistic continents, mountains, and oceans. It also works with popular biome mods to give world […]
Fantastic Fishery Mod (1.21.1, 1.20.1) – Swim with Imaginary Creatures
Fantastic Fishery Mod expands Hybrid Aquatic with new imaginary sea creatures. It adds a brand new underwater biome full of strange coral and unique fungal fish. You can explore deep ocean trenches or frozen waters to find peculiar animals hiding in the dark. The addon even lets you turn the saddest fish in the world […]
Aio's Extra Structures Mod (1.21.1) – Loot Hidden Ruins While Hunting
Aio's Extra Structures Mod adds new buildings and ruins for Cobblemon. It places extra locations across your world for you to explore while playing the main mod. You can find these new spots in almost every biome, from dark oak forests to warm oceans. Features: Spawns wild outposts in the world for you to find. […]
Whaleborne Mod (1.21.1, 1.20.1) – Turn Giant Ocean Creatures Into Living Pirate
Whaleborne Mod introduces a massive new creature to the deep oceans called the Hullback. This mod lets you find these gentle giants, clean them up, and turn them into living pirate ships. You can sail across the seas on the back of your new friend, complete with custom sails, cannons, and cargo space for your […]
Create Deep Seas Mod (1.21.1) – Build Working Submarines to Survive the Ocean
Create Deep Seas Mod extends Create and Create Aeronautics with fully functional submarines and boats. It adds a physics-based system so you can build and pilot your own custom underwater vehicles. You have to manage oxygen and water pressure while exploring the deep ocean. Features: Working Submarines: Lets you build and pilot custom submarines that […]
Subnautica Ember Mod (1.21.8) – Survive Giant Leviathans in the Deep Ocean
Subnautica Ember Mod brings the deep-sea survival of Subnautica into your game. It fills your oceans with new alien creatures, underwater biomes, and hidden dangers. You start in calm waters but must dive into dark caves and deep trenches to find new things. The mod also adds an infection sickness that makes survival harder as […]
A Game of Blocks Mod (1.21.1) – Rule Your Own Medieval Kingdom
A Game of Blocks Mod turns your world into a massive medieval kingdom where you can build armies and rule lands. It drops you into a custom map filled with snowy fields, large castles, and deep oceans instead of normal random terrain. You start by picking a background and religion, which changes how you begin […]
Fishing Frenzy Mod (26.2, 1.21.1) – Build Your Own Underwater Farm
Fishing Frenzy Mod transforms how you catch fish in the game. It brings a completely new fishing system inspired by popular farming games. You get access to different types of fishing rods and special baits to help you catch specific sea creatures. The mod fills your waters with brand-new fish that only appear in certain […]
Fish N' Ships Mod (1.21.1, 1.20.1) – Build Massive Ships to Haul Cargo
Fish N' Ships Mod adds new types of boats and large ships to your Minecraft oceans. This mod lets you build canoes, rafts, and giant vessels that need fuel to move across the water. You can attach upgrades to your ships to break through ice or catch fish while you sail. It gives you many […]
Subnautica After Zero Mod (26.1.2, 1.21.1) – Survive the Deep Sea and Uncover
Subnautica After Zero Mod brings the famous underwater survival game into your Minecraft world. It continues the story a few years after the events of Subnautica Below Zero. This mod adds familiar alien fish, special tools, and massive ocean biomes to explore. It is built specifically to work with a custom story map for the […]
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, […]
Feesh Mod (26.2, 1.21.11) – Never Miss a Rare Catch in Hypixel Skyblock Fishing
Feesh Mod brings helpful tools to your Hypixel Skyblock fishing trips. This mod adds trackers, alerts, and chat features so you always know what happens on your screen. It tracks your profits, counts the sea creatures you catch, and warns you when important events happen. You get a cleaner chat box and useful timers right […]
Terrarium by Lynxs Mod (1.21.11, 1.20.1) – Survive on an Accurate Replica
Terrarium by Lynxs Mod lets you explore a massive, pixel-perfect version of Earth right inside your game. It uses real-world elevation and climate data to generate mountains, valleys, and oceans exactly as they exist in real life. You can change the zoom level to control how big the planet gets, from a small survival map […]