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