PyGalaxy is an open source library of useful functions that make creating 2D games in pygame easier. A sampling of features:

• graphics primitives
• load transparent and animated GIFs correctly
• framerate utilities
• sprite engine with many features
• dynamic music mixing (music heats up with more enemies)
• microphone input and pitch detection
• simple physics engine
• AI functions such as pathfinding and state machines
• interface with Wii Remote, use all the features of the WiiMote in your game

Some of the pieces of PyGalaxy are packaged separately for independent use. These include:

• SWMixer - software mixer that allows precise sample control and simultaneous microphone input while playing
• pyFluidSynth - bindings for FluidSynth, a software MIDI synthesizer that uses SoundFonts (SF2 files) for instruments
• SoundAnalyse - real-time pitch detection algorithms coded in C, and other sound analysis functions
• AppState - connection to Google App Engine for persistent shared distributed state, use for high scores, sharing custom levels in game, etc.