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

Turns unsightly dirt hills into pretty stone cliffs

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

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

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

Oceans, but deeper!

Still Life replaces Minecraft’s default Overworld with a more realistic alternative!

Adds dithering on the biome borders to the game.

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

Make Minecraft more inspiring!

Revamp of the end generation with an emphasis on level design, traversal and variety

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.

Datapack that creates Cave Worlds, based on the old preset, featuring all biomes, ocean caves, and most structures.

Amethyst Nether is a datapack and mod that transforms the Nether with new content.

Datapack that creates sky island worlds floating over an endless ocean.

Try to survive in a world made up of islands!

Raise sea level to 127.

Datapack that creates worlds with floating islands over the oceans for the default world.

Unique plants for a unique world.

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

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

Reduces land generation the further you travel

Explore majestic islands with stunning terrain!

Overworld biome and terrain fantasy-style worldgen mod.

Completely overhauled Nether: Lava rivers on 2 heights with lavafalls between them, proper valleys, oceans, and new biomes and structures.

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

Hexagonal world generation, Settlers of Catan style!

Removes micro-biomes from your world.

JermsyBoy's Overhauled Biomes

an image-based world generator

Datapack which turns your average overworld into a not so average Skylands experience!

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.

Add better rivers to the original version

Generating mountains without cutting their peaks off. Does not alter anything else.

A data-driven image based world generator for Minecraft.

World generation based on realistic latitude-based climate zones!

Formerly ContinuousBiomes

A datapack that adds SCP-3008, otherwise known as a the infinite Ikea to Minecraft.

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

Neoforge port bringing the classic style of Far Lands to 1.21.1

Datapack that turns the overworld into the moon, very boring currently, but I will add biomes and stuff at some point!

This datapack is designed for players who prefer a cleaner, less fragmented Vanilla world. It refines Minecraft's world generation while keeping the overall terrain largely unchanged and true to Vanilla Minecraft.

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

Elevation based biomes, taller mountains, deeper oceans, and more!

Improves the terrain and caves of the Overworld while retaining the feel of Minecraft.

World generation data pack that changes our world to get an effect similiar in look to a sandwich.

This is a lightly modified Minecraft datapack based on the original terrain, bringing some new changes to the vanilla game.

Big mountains

Bringing back whimsy to Minecrafts Overworld Generation!

This datapack adds density to Mushroom Islands, giving them mountains and rivers!

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