Modules
Alchemy
A module that allows the brewing of potions, elixirs, tonics, and other vials.
AlchemyPlantGenerator
Simple module for spawning plants from the Alchemy module into the world.
AlterationEffects
Allows for applying effects to a player (or something else) that alter their base state in some fashion.
Anatomy
A basic anatomy system for players, NPCs, and creatures alike.
AnotherWorld
Pluggable world generator. Structure (Ore) generation and various util classes are very heavily based on JRoush's implementation of CustomOreGen.