HexagonNico

Adds underground biomes and underground dungeons, as well as some above ground structures, in a modular and configurable way.

Phantom Loader is a library that automates part of the process of creating Minecraft mods for multiple mod loaders by generating loader-specific code at build time.

Adds a spider cave biome and a spider armor

A rework of Minecraft's metalworking system

Makes phantoms only spawn when you want them to.