Minecraft Java 1.21 Mods
Browse 30 free mods for Minecraft Java 1.21 — popular picks include Permanent Sponges, L's Ocean Trader, Old fisherman swamp house.
Updated daily
Permanent Sponges
Sponges to keep an area permanently dry. Fancy underwater base anyone?
L's Ocean Trader
adds a new villager, the Ocean Trader and his lighthouse
Old fisherman swamp house
adds an old fisherman’s house to swamp biomes, with villagers and aquatic mobs beneath it
Luminous Blocks
Luminous glass that emit light, perfect for underwater builds and for enhanced building aesthetics.
Secret Rooms
Secret buildings with rare loot underground, underwater, and in the End
fishies in the sea
modpack centered around building with some adventure aspects
EasyBuild(oceanstudio)
EasyBuild is a commission-driven building plugin for Minecraft servers. Create regions, contract builders, track progress, and pay rewards via Vault. Permission-protected building, admin reviews, and multilingual messages.
Better Structures Maps
Client-side mod that renders precise block distance to map decorations including woodland mansions, ocean monuments, villages, trial chambers, swamp hut, treasures...
ClimateCraft
Adds climate change mechanics. Building, mining, and smelting emit CO2, plants absorb it. Keep the environment in balance or suffer sea level rise, droughts, and wildfires!
Lava Gen Tweaks
Tweak the base sea level for lava! Typically starts at -54.
DrownedConduitSpawnBlocker
Prevents Drowned from spawning near conduits for easier underwater building.
Angel Block Reborn
A construction block that can be placed freely in the air or water. Great for building underwater or in the void.
Glazgo's Backrooms Texture Pack
this mod changes the textures of the bamboo wood set to backroom building blocks (and sea lanterns for lights)
Repurposed Structures Better Ocean Monuments Compat Datapack Resource Pack (1.21.1, 1.20.1)
Repurposed Structures Better Ocean Monuments Compat Datapack Resource Pack adds visual compatibility for Repurposed Structures and YUNG's Better Ocean Monuments. It changes the alternative monuments to match the building style of YUNG's structures. Features: Updates the layout of alternative monuments to match the new design. Changes the exterior and interior for the desert, jungle, icy, […]
Vanilla Connected Textures Resource Pack (26.2, 1.21.1) – Texture Pack
Vanilla Connected Textures Resource Pack is a lightweight resource pack that enhances Minecraft’s aesthetic by enabling connected textures for various vanilla blocks – such as glass panes, stained glass, tinted glass, sea lanterns, shroomlights, and ore blocks – without altering their base textures or gameplay mechanics. It retains the familiar Minecraft look while smoothing transitions […]
L's Ocean Trader Mod (1.21.4, 1.20.1) – New Ocean Profession
L's Ocean Trader Mod adds a new villager profession tied to ocean and coastal environments. The Ocean Trader can be found living in a lighthouse structure that generates in beach biomes, or created manually by placing a dedicated trading block as a workstation. Features: Adds a new villager profession called the Ocean Trader. Lighthouse structure […]
Gamingbarn's Zombies Mod (1.21.11, 1.20.6) – Faster, Stronger, and Expandable Zombies
Gamingbarn's Zombies Mod redefines gameplay by replacing default monsters with highly powerful, fast, and adaptable zombies. These enhanced zombies have special abilities, including block-breaking, acid-spitting, and bridge-building. Water becomes a new danger zone as Water Zombies spawn day and night, moving with extreme speed in aquatic environments. Fire serves as the primary weakness for most […]
Create Aquatic Ambitions Mod (1.21.1, 1.20.1) – Prismarine, Coral and Copper Automation
Create Aquatic Ambitions Mod is an addon for Create that introduces new machines, processes, and production lines inspired by the ocean. Harnessing the power of aqueducts, it enables the transformation of byproducts into valuable resources and building blocks, making more materials renewable. Conduit Channeling is a new type of fan processing that uses an active […]
No More Grass And Kelp Mod (1.21.1, 1.20.1) – Removes Grass & Kelp From World Generation
When building underwater structures in the ocean, you will have to manually remove a lot of kelp plants. Similarly, when building on plain terrains, you will have to clear out grass from the ground. Both of these can be inconvenient at times. Do you want both grass and kelp to be removed from the game? […]
Coastal Waves Mod (1.21.4, 1.20.1) – Realistic Water Motion
Coastal Waves Mod enhances Minecraft’s oceans and shorelines by introducing realistic wave animations, adding more depth and immersion to water environments. Whether you’re building a seaside base or exploring the vast ocean, this mod brings a visually stunning upgrade to the game’s natural scenery. Features: Adds dynamic, flowing waves to coastal areas. Improves water realism […]
Seamless Prismarine Bricks Resource Pack (1.21.1, 1.20.1) – Texture Pack
Seamless Prismarine Bricks Resource Pack just enhances the look of prismarine bricks by giving them a seamless texture, inspired by Minecraft Dungeons. This change removes the visible grid-like pattern between bricks, making walls and floors look smoother and more natural. Whether you're building underwater temples or decorative structures, this subtle tweak helps create a more […]
Archipelago Data Pack (1.21.4, 1.20.1) – Majestic Islands, Stunning Terrain
Archipelago Data Pack generates a world of breathtaking islands, each with unique terrain and features. Perfect for players who love exploration, survival challenges, or building in scenic, oceanic environments! Enjoy playing this data pack! Features: Archipelago turns you minecraft world into a unique archipelago of islands while also making mountains an shores a bit better! […]
NotActuallyTerry's Tropicraft Mod (1.21.1, 1.20.1) – Tropical Adventures Await
NotActuallyTerry's Tropicraft Mod introduces a vibrant and immersive tropical dimension to your Minecraft world. This mod allows players to explore lush rainforests, build sandcastles on expansive beaches, and dive into deep oceans. Features: Tropical Dimension: Discover a new tropical world filled with unique biomes and landscapes. Dense Rainforests: Explore thick, verdant forests teeming with new […]
Ordinary Wonders Resource Pack (1.21.1, 1.20.1) – Texture Pack
Ordinary Wonders Resource Pack for Minecraft brings in a whole new aspect to the underwater world of the game. Using many colorful varieties of coral, you can decorate your building with an aquatic style. It focuses heavily on the water atmosphere, giving the ocean a little more deep while presenting new life to it. Ordinary […]
Mermaid adventure
Get ready to live a great life of a mermaid with the mermod. You can now build your base underwater.
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. […]
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 […]
Unnamed Sea Mod (1.21.11, 1.20.1) – Sail Across Oceans Filled with Ships
Unnamed Sea Mod populates your ocean and beach biomes with new, handcrafted buildings. The mod adds life to empty waters by generating different types of structures for you to find while sailing. You can visit these places for a fun challenge or simply enjoy how they change the look of the coastlines. Features: Ocean Structures: […]
DnT Ocean Monument Overhaul Mod (26.2, 1.21.1) – Monuments Worth Exploring
DnT Ocean Monument Overhaul Mod reimagines Ocean Monuments as massive, modular dungeons packed with treasure, danger, and variety. It transforms the once-static structures into sprawling, randomized labyrinths that reward exploration and challenge. Features: Ocean Monuments become rare jigsaw structures, similar in rarity to Woodland Mansions Each monument is split into 7 sections, each with 4 […]
Illager Structures Mod (1.21.1, 1.20.1) – Raid Massive Illager Bases
Illager Structures Mod fills your world with over 30 new enemy bases to explore and conquer. It spreads different types of illager buildings across many biomes, from snowy oceans to tall mountains. You can find everything from small camps to huge factories and pirate ships. This mod gives you more places to fight enemies and […]