Best Minecraft mods for world generation (2026)

Library mod with new configurability and compatibility enhancements for worldgen

Vanilla Worldgen optimization mod

Optimises worldgen performance for a better gameplay experience.

Lithosphere aims to change the overworld worldgen to be more cinematic, polished and beautiful.

This is a passive chunk generator mod, with server-side support for Voxy!

A vanilla-styled worldgen overhaul, with new biomes and touches to existing ones. Short for "Cliff under a Tree"

Fix custom world generation datapack crashes when using minecraft:lake feature ( MC-273228 and MC-272370)

Improves aspects of minecraft worldgen, namely caves, caverns etc.

Complete rehaul of The End with 23 new gorgeous biomes, world-gen only!

Worldgen mod

Fixes a few small issues in worldgen.

WorldGen is a mod for pre-generating Minecraft worlds, with a main focus on SPEED.

Compatibility mod between TerraFirmaCraft and Dynamic Trees. Both worldgen and planted trees are dynamic.

library mod mostly designed for world-gen

A vanilla-styled worldgen overhaul, fork of CliffTree with alternative development

A lightweight utility for replacing one block with another, both during worldgen and afterward.

Overworld biome and terrain fantasy-style worldgen mod.

WorldGen addon for JEI with universal compatibility for all mods ores by utilizing biome generation data

A mod that aids in the development of world generation data packs and mods. Allows reloading worldgen data packs in-game and resetting chunks. Colors jigsaw blocks by name and target.

Performance optimization mod improves mob spawning, biome lookup, worldgen allocations, and task loop hot paths.

A Minecraft worldgen [now] mod aiming to expand on the Nether's desolation and encourage the player to explore vast expanses, all while remaining faithful to Vanilla Minecraft!

What is Above & Below? A collaborative effort between myself and Klinbee, to add new content to the sky and caves. This mod adds floating "cloud" islands above the normal worldgen, and increases cave size below. As well as new dungeons! More to come.

A mod all about tweaking your World-Generation. Adjusted Generation-Parameters for rougher Terrain.

Alter biomes and/or blocks after worldgen

A Minecraft worldgen datapack aiming to expand on the Nether's desolation while encouraging the player to explore vast expanses.

A simple mod that allows worldgen to be disabled.

Simple World Generaion Datapack / Mod

A world-gen river and valley mod

Tropical islands: Pirate themed worldgen!

Enable Xaero’s map to read chunks generated by Voxy WorldGen.