CurseForge · Minecraft mod

Ocean Core

A mod that turns the world into a ocean with islands scattered about

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which Ocean Core release should I use?

Updated last month

Latest stable file oceancore-1.2.6.jar

Game version 1.20.1

Loader Forge

Ocean Core oceancore-1.2.6.jar targets 1.20.1 with Forge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.

Where it goes

Is Ocean Core required on the client, server, or both?

The project page does not say whether this file belongs on the client, dedicated server, or both.

Client Source doesn’t say

Dedicated server Source doesn’t say

Loader for this release Forge

Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume

The source does not explicitly classify this release as client-only or server-only.

Understand client and server requirements Read the Minecraft installation guide

What else does Ocean Core oceancore-1.2.6.jar need?

oceancore-1.2.6.jar. Change the file and its required mods may change too.

No extra mods listed for this file

This file does not list any required mods. Do not add a library just because a different file uses it.

This file does not list any required or optional mods.

Before you install it

Add Ocean Core without breaking your instance.

Built for Ocean Core oceancore-1.2.6.jar. Pick another file and the loader, install side or required mods may change.

01
Stick to this file

Use oceancore-1.2.6.jar. It targets 1.20.1 with Forge; another release may have different loader, side or dependency requirements.
02
Bring the mods it needs

This file does not list any required mods. Do not add a library just because a different file uses it.
03
Put it on the correct side

The project page does not say whether this file belongs on the client, dedicated server, or both.
04
Pick the file you checked

Use the “Get this file” button beside oceancore-1.2.6.jar. It opens that exact file at the source.

About this project

What does Ocean Core add?

OceanCore

OceanCore is a Forge 1.20.1 world generation mod focused on ocean-heavy worlds.

It adds a custom world preset that turns the overworld into a deep-ocean map with scattered islands, coastlines, and archipelago-style terrain while keeping the Nether and End vanilla.

Features

Ocean-focused overworld generation
Deep oceans with scattered islands
Uses vanilla overworld biome selection for broad compatibility
Config options for island spacing, island size, coastline shaping, ocean depth, and compatibility overrides

How to Use

Install OceanCore on Minecraft Forge 1.20.1.
Create a new world.
Select the OceanCore preset during world creation.

Notes

Best used for new worlds.
Nether and End generation remain vanilla.

Project description from CurseForge.

Pick your setup

Ocean Core by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

1 available setups

Minecraft version

1.20.1

1 loader build

Forge oceancore-1.2.6.jar 9 stable files · 9 total · 3 Jul 2026

Check the dependencies, then try the file in a copied instance before changing a world you care about.

Recent files