Fully async, multithreaded, predictive, open source, 3.01 reach
Botcraft is a cross-platform C++ library to create bots
Inspecting and manipulating NBT as a file system
Java Development Framework
Converts Minecraft world files between formats to allow editing
Minecraft private Skin Center
realistic but simple flight simulator: exploration and casual landing
HeroCraft Abilities Using the CraftBukkeit Plugin