
Modrinth · Minecraft mod
Natural Temperature
Natural Temperature is a mod that overhauls the way biomes are placed in the world, creating a layout that more closely resembles Earth’s climate zones with cold biomes in the north and warm biomes in the south.
Quick answer
Which Natural Temperature release matches 26.3?
Natural Temperature 1.2.1 targets 26.3 with Fabric. Do not install it on the client. It must be installed on the dedicated server. No extra mods listed for this file.
Where it goes
Is Natural Temperature required on the client, server, or both?
Do not install it on the client. It must be installed on the dedicated server.
This file is marked server-only.
What else does Natural Temperature 1.2.1 need?
1.2.1 on 26.3. Every mod below is checked against that same setup.
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 Natural Temperature without breaking your instance.
Built for Natural Temperature 1.2.1 on 26.3. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 1.2.1. It targets 26.3 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
Do not install it on the client. It must be installed on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside 1.2.1. It opens that exact file at the source.
About this project
What does Natural Temperature add?
Natural Temperature
Natural Temperature turns Minecraft's random patchwork of biomes into a world with real climate zones. It replaces the vanilla biome placement with an organic, believable, immersive and configurable latitude based system:
- Ice at the poles
- Taigas and tundra in the cold north
- Temperate forests and plains in the middle
- Deserts and badlands near the tropics
- Jungles and savannas around the equator
Travel north or south and you will see the biomes change based on the latitude.

This creates coherent worlds, and as the biomes follow climate logic instead of random noise, exploring feels like travelling across the planet.
The new distribution, especially combined with other world generation mods, creates regions and beautiful environments perfect for finding the right spot for your project, building realistic cities, roleplaying with nations or planning a whole map around the climate.
All of this gives rise to some interesting survival situations since you will have to deal with harsh climates. Add some weather, thirst and season mods, and you find yourself battling the forces of nature, planning your journeys and managing your crops based on your position.
NT offers wide compatibility with other world generation mods or mods that add biomes; these are placed automatically according to their own generation parameters.
Configurability is very high. There are 13 generation modes, adjustable world size, band widths, temperature and humidity of every zone, and a full in game config screen to set up everything.
This project only changes where existing biomes are placed. It doesn't add new blocks or new biomes, so the terrain generation speed is comparable to vanilla.
Quick start
- Install the mod for your loader (Fabric, Forge or NeoForge).
- Click the NT button in the main menu to open the settings screen, or edit the config file in the config folder.
- Pick a generation mode (see below), adjust the options you like and create a new world.
Settings are universal, not per world. If you change them and open an old world, newly generated chunks will follow the new parameters. Already generated chunks stay as they are. This will likely change in the future.

Generation modes
The mode decides the shape of the climatic pattern: straight bands, concentric rings, squares, and so on. Change it with the "generation_mode" setting.
| Mode | Name | Shape | Customizable |
|---|---|---|---|
| 0 | LegacyZero | Legacy, 6 bands | Specific settings |
| 1 | Simplified | 5 bands, desert at the equator | Limited |
| 2 | Linear | Cold in the north, warm in the south | Limited |
| 3 | Custom Circular | 4 concentric rings | Yes |
| 4 | Circular | Preset of mode 3 | Limited |
| 5 | Custom Banded | 6 bands with adjustable temperature, humidity and width, automatic transitions | Yes |
| 6 | Banded | Preset of mode 5 | Limited |
| 7 | Custom Circular 6 | 6 concentric rings | Yes |
| 8 | Circular 6 | Preset of mode 7 | Limited |
| 9 | Custom Square | 6 concentric squares | Yes |
| 10 | Square | Preset of mode 9 | Limited |
| 11 | Custom Discrete | 12 bands with adjustable temperature, humidity, width and range; no automatic transitions | Total |
| 12 | Discrete | Preset of mode 11, Earth like | Limited |
Compatibility
| Loaders | Fabric, Forge, NeoForge |
| Minecraft | Fabric: 1.20.1–26.3 ; NeoForge: 1.20.1–1.21.1 |
| Environment | Singleplayer and server side. Players on a server do not need to install it. |
- World generation mods (e.g. Tectonic, Lithosphere): compatible, results may vary.
- Biome mods: compatible with the vast majority.
- Total conversion mods: probably not compatible, it depends on the mod.
Credits
Special thanks to ImpulsiveLass for her work on recalculating the exact values to use in the banded modes.
Support
You can join the Discord or open an issue on GitHub if you need help or you find a bug.
Project description from Modrinth.
Pick your setup
Natural Temperature by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.2
1 loader build26.1.2
2 loader builds26.1.1
2 loader builds26.1
2 loader builds1.21.11
2 loader builds1.21.10
2 loader builds1.21.9
2 loader builds1.21.8
2 loader builds1.21.7
2 loader builds1.21.6
2 loader builds1.21.5
2 loader buildsShowing the newest 12 of 22 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Natural Temperature versions and loaders
1.2.1
natural-temperature-1.2.1-FABRIC-MC-26.3.jar
31 Oct 2026
1.2
natural-temperature-1.2-FABRIC-MC-26.3.jar
30 Oct 2026
1.1.11
natural-temperature-1.1.11-FABRIC-MC-26.3.jar
16 Sept 2026
Looking for an older file? The official Modrinth project page is in Resources.