Thalassophobia logo

Thalassophobia

Mod

by Zcoper

Explore the depths… but beware of terrifying sea monsters lurking beneath!

Downloads

909,225

Type

Mod

CurseForge ID

1126335

Last Updated

Apr 9, 2026

Description

Title

Dive into the Ocean with the Thalassophobia mod, where the ocean isn’t just full of life, it’s filled with terrifying creatures that will make every swim a danger! Encounter the mighty Colossoteus, also known as Bloop, along with other horrifying monsters that make the ocean their domain. This mod transforms the deep sea into a fearsome place. Venture into these dark, dangerous waters, but be warned, one wrong move could be your last. Will you survive the deep, or will you become prey to the ocean’s monsters?

Recommended mod for deeper oceans and better atmosphere
> https://www.curseforge.com/minecraft/mc-mods/deeper-oceans

● A mod made by Zcoper
● Mod created with MCreator!
● Requires Geckolib:
   GeckoLib 1.19.2 Version
   GeckoLib 1.19.4 Version
   GeckoLib 1.20.1 Version

● Visit my Discord Server!
   https://discord.gg/akP56NtmVQ

● Important FaQ

[OLD] What is my console spaming?

Most mobs use special spawning conditions, which means that these mobs can only appear under certain conditions. If the spawning conditions work, this spam is created in the console.

[OLD] Why are Mobs not spawning?

Mobs in Creeping Woods only work at night. This means that you can only spawn them at night.

► Why are features missing in different versions?

It is recommended to play the newest versions of higher minecraft versions.

Not all features of MCreator available or the same in different versions.
For example: Version 1.19.2 doesn't have the feature of shield, better structure generation or custom villagers, but Version 1.20.1 does have them.

► How can I disable the Alpha Reaverfish?

The Alpha Reaverfish can be disabled if you set the gamerule "enableAlphaReaverfishSpawning" to false.

► Where can I find the mobs?

Most mobs can be found in regular ocean biomes. Some are only be found in deep oceans, during the night or on the ocean floor.

Most of the mobs are easy to find and spawn frequently, but some mobs, especially the big ones spawn rarely. It depends on how lucky you are with the spawnrates.

► How do Echoshells and Leviathan Sensors work?

Both Items only work if you are underwater.

The Echoshell detects nearby water mobs while the Leviathan Sensor goes on a higher range and only detects leviathan mobs.

What would be a leviathan:
Plesiosaur, Mosasaur, Dunkleosteus, Megalodon, Tusoteuthis, Adult Colossoteus, Alpha Reaverfish, Sea Phantom, Riffhead.

► How does the Deep Sea Amulet work?

The Deep Sea Amulet grants Conduit Power if you are deep underwater and under the Y-Level of 40.

► How does the Sonar Beacon work?

The Sonar Beacon releases a big sonar, killing nearby water mobs.

It only works if the block above it is water. It activated through redstone signals. Target blocks or sculk sensors are the best option for this.

► What can I do with Pearls?

Pearls and Black Pearls can be used for crafting or trading for emeralds at a fisherman villager.

► Why are the death messages weird?

If you die with a custom death message like "was shocked to death, ate natural toxin or was killed by sonar" it can sometimes be buggy and just say "death.attack.shock/sonar/toxin".

This is a weird bug from Mcreators Death Message system where it can't print the death message right.

► What mob drops Black pearls?

Black Pearls can be dropped by Ammonitas, Bathotraps, Dunkleosteus, Eurypterids, Megastars, Mosasaur and Tusoteuthis.

► How can I read the Bestiarys Description

To get the descriptions of Sea Creatures, you need to approach them in a 12 block radius.

Adult Colossoteus

Colossoteus is a massive new Leviathan found in both Deep Oceans and regular oceans. Its terrifying size and durability make it extremely dangerous. The Colossoteus's roar can be heard from great distances, and it can destroy blocks in its path. To make matters worse, it can unleash a powerful sonar attack similar to the Warden's Sonic Boom and attacks other animals. It can be detected by using the Leviathan Sensor. If an Adult Colossoteus dies, he can drop a Sonar Organ and his skeleton.

 

Show all Creatures

 

Sea Bird

Sea Birds spawn along beaches and over the ocean, often in groups. They are capable of diving into the water and will hunt Crabs and Glow Fishes. While typically neutral, Sea Birds will become aggressive if provoked. They drop Sea Bird meat, which can be cooked for a source of food.

Hesperornis

Hesperornis are flightless birds from the Cretaceous period that spawn on beaches or swim across the surface of warm oceans. They come in two different colors. Hesperornis are skilled swimmers and hunt fish, but are often hunted themselves by larger predators. Occasionally, they drop Hesperornis Eggs, which are edible and give saturation effect.


Glow Fish

Glow Fishs are passive, glowing creatures that spawn in Deep Oceans during the night, often appearing in groups. They serve as a food source and can be collected with a bucket.

Goldfish

Goldfish spawn in Taiga and Birch Forest underwater. They are small, docile fish that can be collected in a bucket and are often hunted by other creatures.

 

Sea Pickle

Sea Pickles live on the ocean floor in all ocean types and come in seven colors. They are docile and hunted by many fish. When killed, they drop string and a sea pickle, and can also be collected in a bucket.

 

Sea Sludge

Sea Sludges are passive creatures found at the ocean floor, glowing in five different colors. They can be collected with a bucket and can be fed Seagrass to drop Slime Balls.

Crab

Crabs spawn along beaches, often at the ocean floor and in rivers. They are passive but will attack if provoked. Crabs can be collected with a bucket and are hunted by many other creatures. They drop raw Crab meat, which can be eaten.

Yeti Crab

Yeti Crabs are large, furry crabs that spawn on the seafloor in Deep Cold Oceans. They are neutral toward players unless provoked and can be collected with a bucket. Yeti Crabs hunt fish, Maka Maka, and Sea Sludges, making them effective predators in the deep.

Giant Clam

Giant Clams rest on the ocean floor in all ocean types and appear in ten different colors. Players can right-click a clam to open it and obtain a pearl, with a chance to receive a rare black pearl. The clam remains open for a while before closing again.

Sea Urchin

Sea Urchins live on the ocean floor and damages players that collides with them. They can survive on land for a while and can be collected in a bucket.

Leech

Leeches spawn in swamps, rivers, and mangroves, coming in two different colors. Their attacks apply Leech Infection, which will damages the victim. To get rid of the infection, you would need to burn, otherwise, the Leech will spawn again. They do not drown on land and can be collected with a bucket.

Alligator Gar

Alligator Gar lives in rivers and swamps and appear in four colors. They are docile towards players but aggressive towards other fish. They can be collected in a bucket.

Catfish

Catfish lives in rivers and swamps, with small neutral individuals and larger aggressive ones. They hunt other fish but are also frequently hunted. Smaller ones are neutral unless provoked and can be collected in a bucket. Bigger ones are aggressive and have more health and deal more damage

Vertebrat

Vertebrats spawn in the ocean, often in groups, and come in three different colors. They are highly aggressive and fast but can be easily killed. Vertebrats can be collected with a bucket.


Megapiranha

Megapiranhas spawn in oceans, rivers, and swamps, appearing in groups with three different colors. They are highly aggressive and fast, dealing significant damage. Their eyes glow in the dark and can be collected with a bucket.

Panderodus

Panderodus are ancient eel-like creatures with strange faces, spawning in oceans and swamps, often in groups. They come in four different colors and are fast swimmers. Panderodus can be collected with a bucket and drop Panderodus Eyes, which can be eaten or used to brew Night Vision potions.

Sea Snake

Sea Snakes are fast predators that spawn in warm and lukewarm oceans, rivers, and beaches. They live in the water and hunt smaller fish, but can also be hunted by larger predators. Their attacks inflict poison, making them dangerous to approach.

Eurypterid

Eurypterids are ancient sea scorpions found in deep oceans and cold oceans, often appearing in groups. They are  aggressive and can poison their victims. Eurypterids can be collected with a bucket.

Anomalocaris

Anomalocaris are ancient predators that spawn in Deep Oceans. These agile hunters specialize in preying on many small fish, making them active and efficient threats in the depths.

   

Anglerfish

Anglerfishs spawn in Deep Oceans, with their antennae glowing in the dark. They are strong, aggressive predators that hunt Glow Fish and Players. Anglerfish can be collected with a bucket.

Gulper Eel

Gulper Eels are found in Deep Oceans. They are neutral by nature but will attack if provoked, opening their mouths wide during an attack. They hunt Glow Fish and are quick swimmers. Gulper Eels can be collected with a bucket.

Manta

Mantas spawn in oceans, excluding cold ones, and often appear in groups in two colors. They are aggressive but have a short follow range. Their attacks are dangerous due to their ability to poison and their high speed in the water.

Puffer

Puffers are larger green pufferfish found in warm and lukewarm oceans. They are aggressive and inflate when attacking, becoming larger and poisoning their target. Their sudden size change makes them dangerous in close combat.

 

Sea Horse

Sea Horses live in warm and lukewarm oceans, moving slowly in small groups. They come in five different colors and are docile. They can be collected in a bucket.


Jellyfish

Jellyfish appear in every ocean and in water caves, drifting slowly and coming in six colors. They are docile and can drop Jellyfish Jelly, which can be used to craft Jellyfish Jelly Bread or Jelly Torches that can only be placed on the ground but work underwater.

 

Cnidaria

Cnidarias spawn in the ocean, usually in groups, and come in three different colors. They remain calm until a player comes close, then become hostile. Their attacks deliver electric shocks to their victims. Cnidaria can drop Natural Toxin, a deadly item that causes instant death when consumed.

Sea Phantom

Sea Phantoms are giant jellyfish that spawn at night in Deep Oceans. They can be detected using a Leviathan Sensor. Sea Phantoms hunt both fish and players, delivering electric shocks when they attack. They also have a chance to drop Natural Toxin.

Bathotrap

Bathotraps spawn on the ocean floor, surrounded by bubble particles and capable of pulling prey toward them. When in groups, their suction force becomes even stronger, making them especially dangerous. After being killed, they sink back into the ground.

Maka Maka

Maka Maka is a worm-like creature that spawns on the ocean floor, with only its mouth visible above the surface. If approached too closely or attacked, it bursts from the ground and becomes aggressive. If it kills its target, it retreats back into the sand. However, if it takes too much damage, it fully emerges and swims rapidly through the water, attacking nearby prey.



Megastar

Megastars are giant starfish found on the ocean floor. Unlike real starfish, they move quickly along the ocean floor and are aggressive. They are tough to kill and deal heavy damage. Megastars come in six different colors.

Ammonite

Ammonites are massive creatures that live in Deep Oceans. They come in five different colors, are highly resistant, and aggressive by nature. While their follow range is low, they can blind their targets with ink when attacking.

Archelon

Archelons are large, ancient sea turtles that spawn in oceans, excluding cold ones. They come in four different colors and hunt Cnidarias and Sea Phantoms, being immune to their shock attacks thanks to their tough shells. Archelons are fast and highly resistant, but only attack when provoked. Dead Archelons can sometimes be found floating on the ocean surface, usually victims of larger predators. Their Hitbox is also solid, meaning you could stand on them.

Blobfish

Blobfish live in Deep, Cold, and Frozen Oceans and are rarely hunted. They can be collected in a bucket, and when placed on land, they depressurize and change texture to a much uglier form.

Tuna

Tuna spawn in any ocean and are extremely fast swimmers. They are docile and provide a large amount of meat when killed. They are hunted by a lot of other fish.

 

 

Sunfish

Sunfishs spawn in oceans, excluding cold ones. They are passive and slow-moving, peacefully drifting through the water. Despite their large size and high health, they are hunted by many other ocean creatures.

Oarfish

Oarfish inhabit Deep, Lukewarm, and Cold Oceans. They are docile and slowly move through the water, often becoming prey to larger predators.

 

Ichthyosaurus

Ichthyosaurus are passive, dolphin-like marine reptiles that spawn in oceans, especially warm ones. They flee when harmed and can be attracted and fed with Raw Glow Fish, which also heals them. If given a Raw Glow Fish and saddled within five seconds, they become rideable, no longer despawn, and are immune to damage from Sonar Beacons. They are very fast, even if being ridden.

Riffhead

The Riffhead is a massive, kraken-like creature with a stone head, covered in Seagrass and Coral that spawns in deep oceans. It can be detected by a Leviathan Sensor. Despite its imposing appearance, it is passive and ignored by all other ocean creatures. The Riffhead moves slowly through the ocean, and its deep, echoing calls can be heard from a great distance. They also have a solid hitbox, meaning you can stand on them.

Leedsichthys

Leedsichthys are massive, neutral fish that spawn in Cold Oceans. Due to their size, they are hunted by only a few predators. Players can right-click a Leedsichthys to harvest 20 Raw Fish, but doing so damages the creature and causes it to become aggressive. This can only be done roughly once per minute. It can be detected by a Leviathan Sensor.


Whale

Whales are massive creatures found in oceans, especially Cold and Frozen biomes. They remain neutral unless provoked and can be detected with a Leviathan Sensor.

 

Zapfin

Zapfins spawn in oceans, excluding cold ones, and come in four different colors. They are fast and aggressive, using electric shocks to stun their enemies. Zapfins can be collected with a bucket and have a chance to drop Ionic Scales.


Electrophorus

Electrophorus are found in Deep Oceans and come in six different colors. They are fast and aggressive, surrounded by electrical particles. Electrophorus attack with powerful electric shocks, making them a dangerous threat in the water.

Octus

Octus are small squids with translucent skin and glowing internal organs that spawn at night in the ocean. They are hunted by many larger fish but are aggressive toward players. They can be collected with a bucket.

 

Orthoceras

Orthoceras are large, ancient squid-like creatures with massive shells that spawn in Deep Oceans. They come in three different colors and are highly aggressive. Their shell gives them huge resistence. Upon death, the Orthoceras can drop it's cone.

Cookie Cutter Shark

Cookie Cutter Sharks are small, fast sharks that spawn in warm oceans. Despite their size, they are aggressive toward many fish and will also attack players. They can destroy boats and be captured with a bucket.

Frilled Shark

Frilled Sharks spawn in Deep Oceans. They remain neutral unless provoked, but their attacks deal heavy damage due to their powerful teeth.

 

Shark

Sharks spawn in oceans and come in three different colors. They often appear in groups and are strong, neutral creatures that will attack other fish. However, if a player has less than full health, Sharks will become aggressive and attack.

Bull Shark

Bull Sharks are aggressive sharks that spawn in oceans and rivers. They are always hostile toward players and other creatures. Bull Sharks come in two different colors.

Hammerhead Shark

Hammerhead Sharks spawn in warm oceans and come in three different colors. They often appear in groups and are neutral creatures that will attack other fish. However, if a player has less than full health, Sharks will become aggressive and attack.

Helicoprion

Helicoprion is an ancient shark found in Deep Oceans, larger than typical sharks and featuring a distinctive spiral tooth structure in its lower jaw. It comes in two colors and is always aggressive toward prey and players. Its glowing eyes add to its menacing presence in the depths.

Basking Shark

Basking Sharks are large, neutral sharks that spawn in Deep and Cold Oceans. They do not attack and simply swim away when harmed, peacefully drifting through the waters.



Xiphactinus

Xiphactinus are large, ancient, and terrifying fish that spawn in oceans, excluding cold ones. They often appear in groups and come in four different colors. These creatures are strong, dangerous, and highly aggressive, making them a significant threat in the water.

Reaverfish

Reaverfish spawn in the ocean and are large, elongated fish with a hammer-like head filled with sharp teeth. They come in two different colors. Reaverfish are extremely fast, strong, and highly aggressive, making them a dangerous predator in the water.

Megalodon

The Megalodon is a huge, ancient shark with an enormous amount of health and dealing massive damage. It can withstand a lot of damage and inflicts small area damage with its attacks. The Megalodon is highly aggressive, attacking many fish, especially players. Unlike regular sharks, it will become regardless of the player's health. It can be detected by using the Leviathan Sensor. Upon death, the Megalodon can drop it's jaw.

Dunkleosteus

The Dunkleosteus is a massive, ancient fish found in Deep Oceans, with heavily armored skin, especially around its head. It has a large amount of health and incredible durability due to its high resistance. With its powerful jaws, the Dunkleosteus deals significant damage, making it a dangerous predator in the depths. It can be detected by using the Leviathan Sensor. Upon death, the Dunkleosteus can drop it's skull.

Plesiosaur

The Plesiosaur is an ancient marine reptile with a long neck and sharp teeth. It spawns in Deep Oceans, sometimes in groups, and comes in three different colors. With high health and damage, the Plesiosaur is fast in the water and highly aggressive, making it a dangerous creature in the depths. It can be detected by using the Leviathan Sensor. Upon death, the Plesiosaur can drop it's skeleton.

Basilosaurus

Basilosaurus is an ancient toothed whale that spawns in warm oceans. It is aggressive toward players and many fish. This powerful predator has high health and damage but is still being hunted by bigger fish. It can be detected using the Leviathan Sensor. You might will see a Basilosaurus jumping out of the water.

Liopleurodon

Liopleurodon is a large, ancient marine reptile that spawns in Deep Oceans. Its hunting many fish with high health and strong damage. Liopleurodon can be detected using the Leviathan Sensor. Upon death, the Liopleurodon can drop it's skeleton.

Mosasaurus

The Mosasaur is a massive, ancient marine reptile found in Deep Oceans. It comes in four different colors and is highly aggressive. With immense health and resistance, the Mosasaur deals significant damage, making it one of the most formidable creatures in the ocean. It can be detected by using the Leviathan Sensor. Upon death, the Mosasaurus can drop it's skeleton.

Tusoteuthis

The Tusoteuthis is a massive, ancient giant squid that spawns in Deep Oceans. It comes in three different colors and is highly aggressive, even attacking Adult Colossoteus. With a large amount of health and damage, it is a dangerous predator. The Tusoteuthis can also blind its enemies with ink. It can be detected by using the Leviathan Sensor.

Baby Colossoteus

Baby Colossoteus are smaller, weaker versions of the Colossoteus. They spawn in oceans, but never in Deep Oceans, and will not grow into an adult over time. Baby Colossoteus are slower and vulnerable, often targeted by other fishes. If you hurt a Baby Colossoteus, you will receive the effect "Mothers Call" and if there is an Adult Colossoteus nearby, it will get aggressive towards you

Adult Colossoteus

Colossoteus is a massive new Leviathan found in both Deep Oceans and regular oceans. Its terrifying size and durability make it extremely dangerous. The Colossoteus's roar can be heard from great distances, and it can destroy blocks in its path. To make matters worse, it can unleash a powerful sonar attack similar to the Warden's Sonic Boom and attacks other animals. It can be detected by using the Leviathan Sensor. If an Adult Colossoteus dies, he can drop a Sonar Organ and it's skeleton.

Alpha Reaverfish

Alpha Reaverfish is a massive, red variant of the Reaverfish, even larger than the Colossoteus that spawns in deep oceans. The Alpha Reaverfish also has a unique head, with five horns instead of 2 regular ones on the side. This terrifying creature can destroy blocks and is incredibly dangerous. Its roar can be heard from great distances. Its immense strength makes it a much greater threat. It is the most dangerous beast in the Deep Oceans but can be detected by using a Leviathan Sensor. Upon death, it can drop his Skull and an Alpha Fang.

 

● Config File not inculed.
● You are all allowed to use this mod in your modpacks!
● Do not port my mods without permission!


Check out my other Mods:
https://www.curseforge.com/members/zcoperfy/projects

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