Abyssal Ocean

Abyssal Ocean 2.3.0 — The Abyss Update - The Deep Life Update

New creatures

• Anglerfish: ambush predator with a glowing lure. Hunts small fish, bites divers who get too close, flees when badly hurt.
• Giant Isopod: armored scavenger of the abyss floor. Rolls into a ball when attacked.
• Giant Squid: rare giant with rippling arms and hunting tentacles. Inks, grabs and drags its prey.
• Lava Fish: glowing, scalding fish schooling around the magma vents of the Volcanic Abyss.

The Frozen Abyss

• Sub-biomes are now large regions (hundreds of blocks); the Glacial Abyss never borders the Volcanic Abyss.
• A permanent black ice shelf seals the Glacial Abyss in eternal darkness (with breathing holes).
• Brinicles that flash-freeze anything they touch, dense brine lakes you float on, cryogenic vents, resonant cryocrystal fields, fibre-optic kelp, methane hydrate and cryonite ore.
• Hypothermia: the water drains your body heat. Line your diving suit with a Thermal Lining, or stay close to heat.
• Lantern Eels that flash-blind divers, and Borer Isopod swarms drawn to heat that chew through armor.
• New structures: ice-locked ship graveyard, frozen research station, primordial fossil, subglacial monolith with a breathable chamber.

Giant Squid rework

• Now a 12-block apex predator with 240 HP and heavy armor. Hunts divers, lashes its tentacles at up to 14 blocks and reels you in.
• New drops: Giant Calamari, Adhesive Sucker (wall-climbing boots, Potion of Adhesion), Bioluminescent Gland, Chitinous Beak (Beak Dagger) and the rare Abyssal Eye, Whip Tentacle, Heart of the Depths and Giant Squid Trophy.

Speargun

• Fully modelled tethered speargun: hold to cock the bands, fire, reel back in. Hooked prey is dragged to you; heavy targets drag you to them. Hits twice as hard underwater.

The Volcanic Abyss, reborn

• Submarine lava rivers under a glowing crust, giant black smoker chimneys with thermal updrafts, obsidian spire labyrinths and volcanic islands with black sand beaches.
• Sulfur coral reefs (sulfur makes gunpowder), glowing heat algae, thermal crystals (warmth in the Frozen Abyss) and ash sponges that blind you in a black cloud.
• Toxic gas pockets, murky ash-filled water and seaquakes that shake the screen, drop rocks and tear open new lava fissures.
• Submerged forges, vitrified ruins, melted shipwrecks and deep temples on dormant calderas.

Boss: the Ice Leviathan

• A 33-block sea serpent with a smooth, non-blocky procedural model: crystal-ridged back, ice antlers, six eyes and a four-petal jaw that blooms open into rows of ice fangs.
• It stalks you in circles, roars, charges, bites and breathes freezing water. Summon it with the Heart of the Depths on a Cryogenic Vent.
• Drops Leviathan Scales, Glacial Fangs and the Glacial Heart.

Volcanic fauna

• Magma Eel: blinding heat flash and a scalding bite. Its hide makes Heat-Proof Boots.
• Obsidian Armoured Crab: arrows glance off, pickaxes crack it. Its carapace makes a shield that reflects projectiles and burns attackers.
• Steam Jellyfish: rides the thermal updrafts and scalds on touch. Its jelly powers the Steam Jet.

Diver villages

• Air-filled glass domes on the abyssal plains with an airlock, a farm and a workshop, home of the new Abyssal Diver villager who trades diving and hunting gear (even the submarine).

Bigger oceans

• Oceans are about 1.7x larger, with the same deep abyssal valleys (new worlds).

Arsenal & Mini Submarine

• Harpoon Launcher: a real harpoon gun: load one harpoon, fire, it doesn't come back. Harpoons stack to 64.
• Leviathan Breaker: a heavy, fully modelled harpoon cannon fuelled by lava fish and cooled by cryonite. Faster, harder shots.
• Hand Harpoon: barbed spear you can stab with or throw.
• New enchantments: Abyssal Call, Tidal Fury, Leviathan Hunter.
• Mini Submarine: one-seat attack sub with a glass cockpit. Steers with your view, armored hull that monsters can break (repair with iron), twin harpoon tubes, sonar that reveals every creature around, headlights and a full cockpit HUD. Breathe, and ignore pressure and cold, while inside.

Diving gear

• Brass diving dress with custom 3D helmet and suit: full immunity to pressure and barotrauma, breath lasts 4x longer.
• Netherite diving dress: netherite protection, air drains up to 12x slower.
• Lantern helmets (brass and netherite) and the Anglerfish Helmet: wearable lights for the deep and for mining.

World

• New abyss floor: rolling relief, abyssal hills, seamounts, long branching trenches and canyons.
• New structures: whale falls, abandoned research outposts, sunken submarines.
• Volcanic geysers (hydrothermal vents) that launch you upwards.
• Bigger abyss regions, configurable sub-biome weights, Subnautica-style deep visibility.
• Monuments, ruins and shipwrecks sit on the real abyss floor.

Quality of life

• New Abyssal Ocean creative tab with every item from the mod.
• The Whip Tentacle is now a 3D living tentacle with a real whip-lash animation.
• Full translations: English, Português (BR), Español and 简体中文 (Simplified Chinese).

Fixes

• Fixed lantern eels (and other creatures) trembling while swimming.
• Fixed worlds failing to load after saving with Terralith / TerraBlender and other worldgen mods ("No key dimensions in MapLike").
• The oxygen cylinder now explains how it works.