A deep-dive overhaul of Minecraft's oceans — a boss, a bioluminescent trench, apex gear, diving kit, aquariums, and the creatures and blocks to fill it all.
What Ocean Overhaul adds to the deep.
Hunt the Megalodon, a colossal apex boss shark, for guaranteed Megalodon Teeth, then forge the Abyssal Fang — an apex sword a full tier above Tidal (9 attack damage, 2200 durability, repaired with teeth).
Deep oceans now grow bioluminescent plankton and hydrothermal vents; giant clams grow Abyssal Pearls over a Minecraft day — return and right-click to harvest (empty clams drop nothing) — and the Megalodon and Abyssal Lurker concentrate down in the dark. Finding the deep is the deep-content gate.
Throw a Harpoon that yanks your target back toward you and loyalty-returns to your hand. Equip Flippers (swim speed), an Oxygen Tank (water breathing) and a Deep-Sea Helmet (night vision) to make the depths traversable.
Bucket the mod's Reef Fish, Jellyfish and Seahorses — color variants preserved — and place an Aquarium block to watch your catch swim around inside a glass tank.
A full Tidal armor and tool set crafted from ocean materials, granting water-breathing and built for life below the surface.
Driftwood wood-set, abyssal coral, prismarine, pearl and sea-glass blocks — with stairs, slabs, walls and chiseled variants for true underwater builds.
New creatures from the shallows to the trench.

A tiny solitary reef pet in five colors — bucket it (color preserved), display it in an aquarium, or let it drift near the coral it loves.

An amphibious beach scuttler — the mod's first walking and breedable mob. Hunt it for crab meat, breed pairs with kelp, and trim armor with its carapace.

A stationary trench boss: six independently-damageable tentacles guard an untouchable mantle — break the ring to open the kill window, and claim the Heart of the Kraken.

A massive apex boss shark that patrols the deep ocean and drops guaranteed Megalodon Teeth.

A bioluminescent anglerfish of the depths, its lure glowing in the dark.

Schooling tropical reef fish that bring color to shallow waters.

Drifting jellyfish in five distinct color variants.
Building sets, deep-sea flora and functional blocks.
Tools, gear, food, materials and spawn eggs.
Every recipe the mod adds, generated from the data files.
Abyssal Coral Block
Abyssal Fang
Abyssal Pearl Block
Abyssal Pearl from Block
Anchor
Aquarium
Barnacle Block
Chiseled Prismarine Tiles
Chiseled Prismarine Tiles Slab
Chiseled Prismarine Tiles Stairs
Chiseled Prismarine Tiles Wall
Coral Shard
Crab Cake
Crushed Coral
Crushed Coral Block
Crushed Coral from Block
Deep Sea Helmet
Driftwood Button
Driftwood Door
Driftwood Fence Gate
Driftwood Plank
Driftwood Plank Fence
Driftwood Plank Slab
Driftwood Plank Stairs
Driftwood Plank Wall
Driftwood Pressure Plate
Driftwood Trapdoor
Flippers
Harpoon
Kelp Roll
Oxygen Tank
Pearl Block
Pearl Block Slab
Pearl Block Stairs
Pearl Block Wall
Pearl Lantern
Polished Prismarine Bricks
Polished Prismarine Bricks Slab
Polished Prismarine Bricks Stairs
Polished Prismarine Bricks Wall
Prismarine Crystal Block
Rope
Salt Block
Salt Block from Block
Salted Cod
Sea Glass
Sea Glass Slab
Sea Glass Stairs
Sea Urchin
Seafood Stew
Ships Wheel
Tattered Sail
Tidal Axe
Tidal Boots
Tidal Chestplate
Tidal Helmet
Tidal Hoe
Tidal Leggings
Tidal Pickaxe
Tidal Shovel
Tidal Sword
Tide Pearl from Pearl BlockUp and running in four steps.
mods/ folder.ocean-overhaul jar from the Releases page and drop it in mods/ too.