Terrain

A minecraft mod which enhances world generation with new biomes, blocks, and items

This mod overhauls all vanilla biomes, with different sub biomes!

A realistic Minecraft world gen mod that adds nearly 200 new biomes and overhauls all vanilla biomes.

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

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

An overworld biome overhaul, enhancing vanilla's feel with new detail and vegetation

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

Tellus is a mod that recreates real-world terrain, buildings and roads in Minecraft by generating Earth-scale landscapes from geographic and OSM data.

This is an add-on for William Wythers' Overhauled Overworld which makes coastlines more interesting, creating nice flat beached coves and rugged rocky escarpments.

A world-gen river and valley mod

A NeoForge port of the newly released Terrain Diffusion mod.