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Just One Block project artwork

CurseForge · Minecraft mod

Just One Block

Both the nether and overworld are reduced to a void, with only one block in the overworld left

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

Quick answer

Which Just One Block release should I use?

Updated last month
Latest stable file one_block-1.3.0-forge-1.20.1.jar
Game version 1.20.1
Loader Forge

Just One Block one_block-1.3.0-forge-1.20.1.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 Just One Block 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 Just One Block one_block-1.3.0-forge-1.20.1.jar need?

one_block-1.3.0-forge-1.20.1.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 Just One Block without breaking your instance.

Built for Just One Block one_block-1.3.0-forge-1.20.1.jar. Pick another file and the loader, install side or required mods may change.

  1. 01

    Stick to this file

    Use one_block-1.3.0-forge-1.20.1.jar. It targets 1.20.1 with Forge; another release may have different loader, side or dependency requirements.

  2. 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.

  3. 03

    Put it on the correct side

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

  4. 04

    Pick the file you checked

    Use the “Get this file” button beside one_block-1.3.0-forge-1.20.1.jar. It opens that exact file at the source.

About this project

What does Just One Block add?

This mod reduces the overworld to one single block, which replaces itself with another when it is mined. Depending on the stage of progression, these blocks change and various mobs may also from it.

(This mod already goes up to the End dimension, where the world generation is NOT affected -> You can beat the game here)

Project description from CurseForge.

Pick your setup

Just One Block by Minecraft version and loader

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

1 available setups

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

Recent files

Just One Block versions and loaders

4 of 4 releases match

Looking for an older file? The official CurseForge project page is in Resources.

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