CurseForge · Minecraft mod
Square Biomes
A Minecraft Fabric mod that makes overworld biomes generate in square grids.
Quick answer
Which Square Biomes release should I use?
Square Biomes square-biomes-1.0.0.jar targets 1.21.11 with Fabric. 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 Square Biomes required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does Square Biomes square-biomes-1.0.0.jar need?
square-biomes-1.0.0.jar. Change the file and its required mods may change too.
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 Square Biomes without breaking your instance.
Built for Square Biomes square-biomes-1.0.0.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use square-biomes-1.0.0.jar. It targets 1.21.11 with Fabric; 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 square-biomes-1.0.0.jar. It opens that exact file at the source.
About this project
What does Square Biomes add?
square-biomes is a Fabric mod for Minecraft 1.21.11 that replaces natural biome borders with a strict square grid.

Each biome is resolved per square cell, producing a clean tiled overworld instead of vanilla's curved climate-driven layout. The mod also supports strong randomization, so overworld biome distribution can be much less dependent on vanilla climate rules.
Features
- Square biome borders
- Configurable biome square size
- Configurable cell jitter
- Configurable random biome chance
- Random biome mode applies only to the overworld
- Nether and End are excluded from random biome selection
- Uniform random selection across unique overworld biomes
Default config
- gridSizeBlocks: 128
- cellJitter: 0.85
- randomBiomeChance: 0.8
Requirements
- Minecraft 1.21.11
- Fabric Loader
- Fabric API
- Java 21
Important
- New worlds are recommended
- Existing worlds can show visible borders where new chunks generate
Project description from CurseForge.
Pick your setup
Square Biomes by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Square Biomes versions and loaders
square-biomes-1.0.0.jar
5 Apr 2026
Looking for an older file? The official CurseForge project page is in Resources.