Ocean Depths Modpack (1.20.1) – Survive a 70% Flooded World with Submarines
Ocean Depths Modpack turns your Minecraft world into a giant ocean where water covers most of the map. Instead of walking on normal land, this pack forces you to survive deep underwater. You can swim through the hidden Atlantis dimension, find sunken villages, and open chests inside dark towers on the ocean floor. It gives you custom submarines to travel safely through thick kelp forests and special tools to catch new types of fish. Just watch out for angry pirate ships sailing on the surface and scary sea monsters hiding in the dark water.

Features:
- Flooded World: The Ocean Depths Modpack changes world generation so water covers 70 percent of the map, leaving only 30 percent for land.
- Atlantis Dimension: Adds a massive new dimension filled with glowing underwater cities and unique ruined temples.
- Personal Submarines: Lets you build small yellow submarines to travel safely through dark waters and deep kelp forests.
- Includes a full quest system to help you progress through this Ocean Depths Modpack.
- Changes the main focus of survival to marine life and ocean bases.
Ocean Exploration & Structures
- Places entire lost villages and ruined blocky structures right on the dark ocean floor.
- Spawns mysterious glowing towers that hold valuable loot in the deep sea.
- Fills the seabed with colorful crabs, glowing plants, and thick green kelp.
- Adds fresh biomes to the remaining islands so land bases are still fun to build.
Threats & Enemies
- Spawns hostile Illager pirate ships on the surface of the water to make sailing dangerous.
- Brings large sea monsters and mysterious creatures into the dark foggy waters.
- Makes Aquatic Creepers chase you when you swim near lit underwater towns.
- Adds new wild animals to both the land and the sea.
Survival & Gear
- Lets you craft special aquatic tools and weapons using materials found in the deep.
- Expands the fishing system so you can catch many new types of fish above or below the water.
- Adds grave markers to keep your items safe if you happen to die underwater.
- Improves your building options with extra blocks, bridges, and roofs for your island homes.
How to Play:
- Follow the provided quest book to learn the basics and guide your progression through the modpack.
- Start by finding a small island to build your first base, as 70% of the world is covered by water.
- Focus on crafting a submarine, which is essential for safely exploring the vast and dangerous ocean depths.
- Explore the ocean floor to find sunken villages, mysterious towers, and the hidden dimension of Atlantis.
- Watch out for new threats like hostile pirate ships on the surface and aquatic monsters lurking in the deep.
Screenshots:


















How to Install:
New to Minecraft? Follow our step-by-step guide to install Modpacks on your PC.View Guide
Ocean Depths Modpack Download Links
For Minecraft 1.20.1, 1.20
Forge Version (Server Files): Download from Server 1 – Download from Server 2
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January 30, 2026
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