Cool Worldgen

A quick way to get rid of a biome. Useful for tweaking datapack-based generators (like Terralith) that don't have a convenient configuration

Allows you to preview a map / seed in the new world screen

Old (and not so old) world generation for modern Minecraft!

Adds dithering on the biome borders to the game.

World generation overhaul inspired by epic fantasy, designed for exploration

An uncompromising Overworld Overhaul, Enhancing world generation in every biome and environment.

Rivers, but underground! Wild, isn't it?

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.

Try to survive in a world made up of islands!

Unique plants for a unique world.

Earth in Minecraft - Configurable! Spiritual successor to Terra 1:1

Procedurally generated rock formations, clearings, ponds, and more.

Overworld biome and terrain fantasy-style worldgen mod.

Overhauling the Overworld with new terrain, biomes, caves, and more.

Hexagonal world generation, Settlers of Catan style!

Removes micro-biomes from your world.

an image-based world generator

Adding the object permanence that Mojang didn't have to Vanilla biome design

Adds a world preset for generating beta 1.7.3 terrain

A world-gen river and valley mod

Finite, Tiled, Seamless World Wrapping.

A data-driven image based world generator for Minecraft.

Neoforge port bringing the classic style of Far Lands to 1.21.1

Make savannas actually flat — wide, buildable plains with natural edges. Rivers, trees and villages stay untouched; everything else is pure vanilla.

Formerly ContinuousBiomes

A mod that modernizes the height limits of the Nether, while also keeping the nether roof functionality.

Bringing back whimsy to Minecrafts Overworld Generation!

An API for density functions that use the world seed, voronoi/cellular noise, and new fluid behaviors