Home›Java›Datapacks›JermsyBoy's World Overhaul Data Pack (1.21.1, 1.20.1) – Enhanced World Generation with New and Classic Biomes
DatapacksJava
JermsyBoy's World Overhaul Data Pack (1.21.1, 1.20.1) – Enhanced World Generation with New and Classic Biomes
JermsyBoy's World Overhaul Data Pack overhauls Minecraft's world generation, bringing significant improvements to biome diversity and terrain. It not only…
⬇ Download







JermsyBoy’s World Overhaul Data Pack overhauls Minecraft’s world generation, bringing significant improvements to biome diversity and terrain. It not only updates existing biomes for a more immersive experience but also introduces a variety of new biomes and brings back some fan-favorite biomes from older versions of the game. Perfect for players looking to explore a refreshed and more dynamic Minecraft world!
![]()
Features:
- Minecraft 1.18 completely overhauled the way the world generates and was a huge improvement overall, but I wasn’t completely satisfied and wanted to some more updates to the biomes. This data pack aims at achieving that, along with adding a few new biomes, and a few returning biomes from old versions of the game.
Screenshots:


















JermsyBoy’s World Overhaul Data Pack Download Links
For Minecraft 1.21.1, 1.21
For Minecraft 1.20.4, 1.20.2, 1.20.1, 1.20
Verified by MCModsHub
- Download size: 291 KB
- Download link checked 17 Jun 2026 — working
- Mirrored on our own servers — the download does not depend on the original host
These come from our own check of the pack file, not from the source page.