Minecraft Java 1.21 Mods
Browse 171 free mods for Minecraft Java 1.21 — popular picks include update aquatic part 2, The Reaper Leviathan, SGS Cogs & Creatures.
Updated daily
update aquatic part 2
this mod overhauls the entire ocean biome :}
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
Ancient Horizon Rising Mod (1.21.1) – Tame Giant Prehistoric Beasts
Ancient Horizon Rising Mod populates your Minecraft world with huge prehistoric beasts inspired by ancient history. You can encounter fierce predators in frozen biomes, find peaceful plant-eaters across lush lands, and explore deep oceans filled with primal life. The mod lets you feed these creatures their favorite foods to tame them as loyal companions. A […]
Oxidized Aeration Mod (26.2, 1.21.1) – Build Flush Water Elevators
Oxidized Aeration Mod lets bubble column effects from soul sand and magma blocks pass directly through copper grates. Water elevators and downward bubble traps work normally even when copper grates sit above the source blocks. This simple mechanic gives you cleaner floor designs for water tubes, mob grinders, and underwater bases. Features: Lets upward bubble […]
Saltwater Chronicles Modpack (1.21.1) – Explore Oceans And Defeat Monsters
Saltwater Chronicles Modpack sends you on a massive survival journey across open oceans and dangerous uncharted lands. You will dive into sunken ruins, search wrecked ships for treasure, and fight giant monsters that lurk underwater. Build better gear step by step as you explore forgotten islands and master both land and sea. Features: Vast Ocean […]
Oddities and Ends Mod (1.21.1, 1.20.1) – Survive with Teleport Crops
Oddities and Ends Mod introduces a broad variety of handy items, unique mobs, equipment, and world mechanics to spice up your survival world. You can barter with a new villager profession, wield heavy two-handed broadswords, cultivate superkelp ecosystems in ocean reefs, and discover new ore deposits deep across the Nether wastes. The mod brings creative […]
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 […]
No Frills Mod (26.2, 1.21.11) – Hypixel QoL Toolkit
No Frills Mod offers a massive toolkit of UI tweaks, solvers, visual enhancements, and bug fixes for Hypixel Skyblock. Features: No loading screen, hidden overlays, fewer particles. Custom swing speed, disable fire overlay, clean viewmodel. Etherwarp highlight, price tooltips, rare mob alerts. Chronomatron, Ultrasequencer, Melody, Terminals, Devices. Track bosses, mobs, power, bobbers, and sea creatures. […]
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 […]
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 […]
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 […]
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 […]
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 […]
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 […]
Ruined MC Live Mod (1.21.10) – Ride Giant Pufferfish and Fight Roman Armies
Ruined MC Live Mod brings a bunch of crazy and funny ideas from a live chat straight into your game. It fills your world with weird new mobs, joke weapons, and silly features that change how you play. You can meet strange sea creatures, fight ancient armies, and use items in ways you never expected. […]
Shinea L's Prehistoric Expansion Mod (1.21.8, 1.20.1)
Shinea L's Prehistoric Expansion Mod fills your world with ancient dinosaurs, extinct animals, and mythical beasts. Each creature gets its own special animations, daily habits, and useful drops to make survival more exciting. Features: Tameable Mounts: You can tame a Triceratops with ferns or ride a Hippocampus across the ocean using fish. New Survival Gear: […]
Hybrid Birds Mod (1.21.11, 1.20.1) – Farm Wild Birds and Cook Massive Meat
Hybrid Birds Mod populates your world with many new flying and flightless birds. It gives you fresh ways to gather food, breed animals, and interact with wildlife in different biomes. Features: Spawns several new types of birds across the world, from forests to oceans. Adds tiny baby versions for every single new bird type. Brings […]
Sea Weapons Mod (1.21.11) – Smash Hostile Mobs with Heavy Ocean Weapons
Sea Weapons Mod adds heavy ocean-themed gear to your game for when standard tridents just do not cut it. It gives you unique items like a giant hammer and a special sword. You get new ways to attack, jump, and pull yourself around the world. The mod also includes special enchantments and cosmetic skins to […]
Myths of the Sea Mod (1.21.1, 1.20.1) – Battle Mythical Sea Monsters
Myths of the Sea Mod fills your oceans and swamps with legendary sea monsters. It gives you new boss fights and rare loot to collect. You can hunt down giant creatures for special materials or find peaceful animals to ride across the water. Features: Tameable Mounts: You can feed raw fish to a Hippocampus to […]
No Mans Land Mod (1.21.1) – Roam Through Upgraded Biomes and Encounter New
No Mans Land Mod transforms your entire Minecraft world with fresh biomes, better animals, and beautiful landscapes. It takes the normal places you know, like forests and oceans, and makes them look much better with careful details. You will find brand-new areas to explore, extra plants everywhere, and updated dungeons hidden underground. The mod also […]
Fishing Expansion Mod (26.2, 1.21.1) – Catches Special Fish And Loot
Fishing Expansion Mod completely changes how you catch things in the water. It lets you find special items, maps, and strong armor just by using your rod. You can even pull real monsters out of the sea and fight a scary new boss. Features: Water Trail: Arrows leave a path of water behind them. Ender […]
Sea Life Mod (26.2, 1.21.1) – Diverse Fish And Aquatic Life
Sea Life Mod is a mod for Minecraft that makes oceans and rivers more vibrant by adding many new fish species, items, and underwater interactions. Features: Expands the aquatic world with dozens of fish and aquatic creatures that naturally occur in suitable biomes – from the deep, cold ocean to rivers, swamps, and tropical coral […]
RPG: Better Elder Guardian Mod (1.21.1, 1.20.1) – Powerful Elder Guardian & More!
The Elder Guardian is a mini boss that is found in ocean monuments. It is a powerful mob that uses charged attacks to fight the player. Defeating it will grant the player control over the ocean monument, allowing him to loot the structure and to build guardian farms. For many players, fighting the Elder Guardian […]
Create Guardian Beam Defense Mod (1.21.1, 1.20.1) – Laser Defense Systems
Create Guardian Beam Defense Mod is an addon for Create Mod that adds in stationary laser defense units themed around Guardians and Ocean Monuments that are capable of automatically locking on to hostile mobs and damaging them over time in frequent bursts. There are currently two primary types of such laser defense units. Features: Basic […]
Ocean's Delight Mod (1.21.11, 1.20.1) – Adds Seafood Meals
Ocean's Delight adds new seafood meals to the game. This addon for Farmer's Delight brings more culinary options focused on ocean creatures. You can cook and eat monsters and animals from the deep sea. Features: Seafood Meals: Cook dishes using creatures and items found in the ocean. Elder Guardian Dish: Prepare a Cabbage Wrapped Elder […]