Seed Based World Generation
Based on the world seed chosen are: biomes that will generate (ussualy a few biomes), the ruggedness of the world and height( tho it can still vary). The…
⬇ Download on Modrinth
This datapack changes the worldgeneration.
Many variables of worldgen are now tied to the seed. It removes diversity and makes deafult world type into biomes with similar values world type.
Its main purpouse is for players to be able to create interesting world types. For example: ocean world types, mountain world types and forest world types. The possiblities are endless(nearly). The easiest way to search for cool world types is to use [Seed map](https://mcseedmap.net/)
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.11, 26.1, 26.1.1
- 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 — see the MC Java Mods guides for the full walkthrough.
- Downloads as 1.21.11_Seed_Based_World_Type.zip
- Download size: 67 KB
- Download link checked 23 Aug 2026 — working
These come from our own check of the pack file, not from the source page.