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Minecraft Java 1.21 Mods

Browse 5 free mods for Minecraft Java 1.21 — popular picks include Lava Gen Tweaks, No More Grass And Kelp Mod (1.21.1, 1.20.1) – Removes Grass & Kelp From World Generation, Archipelago Data Pack (1.21.4, 1.20.1) – Majestic Islands, Stunning Terrain.

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Lava Gen Tweaks
1.21neoforge

Lava Gen Tweaks

Tweak the base sea level for lava! Typically starts at -54.

211downloads
No More Grass And Kelp Mod (1.21.1, 1.20.1) – Removes Grass & Kelp From World Generation
1.21.1fabric

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? […]

Archipelago Data Pack (1.21.4, 1.20.1) – Majestic Islands, Stunning Terrain
1.21.4

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! […]

Mermaid adventure
1.21.11neoforge

Mermaid adventure

Get ready to live a great life of a mermaid with the mermod. You can now build your base underwater.

873downloads
DnT Ocean Monument Overhaul Mod (26.2, 1.21.1) – Monuments Worth Exploring
1.21.1

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 […]