The TuxCap Games Framework is a GNU/Linux and Mac OSX port of the PopCap Games Framework used for 2D game development. It comes with PyCap Python bindings, a fast 2D physics engine, a particle engine, widgets and many documented examples.
Crystal Space is an Open Source 3D SDK for Unix, Windows, and MacOS/X. It renders with OpenGL and features GLSL shaders, CG shaders, deferred rendering, dynamic shadows, bullet based physics library, terrain engine, skeleton based animation meshes, exporter for Blender, portals, etc...
Superconducting QUantum Interference Devices (SQUIDs) control software
OpenSQUID is a Python framework for the control of SQUID (superconducting quantum interference device) readout electronics.
It currently supports the Star Cryoelectronics PCI-1000 electronics with PFL-100 and PFL-102 flux-locked loops.
Simultaneous operation of both PFL-100s and PFL-102s from a single PCI-1000 is supported.
More features are under development.
The software is implemented in Python and aims to be easily integrated with user-defined measurement and control code.