Extended Worldgen
I don't know my version or loader
ATTENTION: This mod is still in an alpha stage of development. Breaking changes and instability should be expected.
Did deserts spawning right next to snowy mountains ever feel weird to you?
Or is it the fact that the climate in Minecraft is pseudo-random, so you can never know where you may find snow in the first place?
Behold, I might have something for you:
Extended Worldgen
This mod adds many new functions to Minecraft's Datapack system, which opens up new possibilities to developers and players alike. You can modify how the world behaves, solely based on the position of the block - to predefine a central continent no matter the seed, to have a temperature gradient in the world, and much, much more. This mod is but the framework to enable the most creative people out there to make their ideas a reality.
Roadmap
(in no particular order)
- add datapacks support (see Hijack Datapack System Instead (#2))
Newer versions require the use of datapacks to function properly. An example is available here.
Current Project State:
| MC Version | NeoForge | Forge | Fabric |
|---|---|---|---|
| 1.21.x | 1.0-rc3 | - | planned |
| 1.20.2-1.20.4 | 0.1 | - | - |
| 1.20.1 | - | 0.1 | - |
| 1.19.x | - | 0.1 | - |
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.1, 1.21.2, 1.21.3
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as continuousbiomes-1.21.x-1.0-rc3.jar — drop this file into the mods folder
- Download size: 28 KB
- Download link checked 31 Aug 2026 — working
These come from our own check of the pack file, not from the source page.