OpenFrameworks is a cross platform open source toolkit for creative coding in C++.

Staff is Web Service Framework for C++, AJAX, and J2ME that is based on Apache Axis2/C.

WSF Staff wraps Apache Axis2/C code into C++, and also provides many additional features:
- stateful Web Services implementation in C++ with instance support;
- synchronous and asynchronous client implementation in C++, AJAX and J2ME;...

PyNE: The Nuclear Engineering Toolkit,

Platinum Arts Sandbox Free 3D Game Maker is an open source game design program for kids and adults. The focus is to make the process of creating games and worlds easy enough for kids but powerful enough to create full game projects. Sandbox is already being used in many schools and colleges throughout the world. See it in action!...

RobOptim is a C++ generic nonlinear optimization library for robotics. The core level allows user to define optimization problems in a generic way in order to use different back-ends.

Nana C++ Library takes aim at easy-to-use and portable library, it provides a GUI framework and threads for easy programming with modern C++ methods.

OpenDDS is an open source C++ implementation of the Object Management Group (OMG) Data Distribution Service (DDS). OpenDDS leverages the Adaptive Communication Environment (ACE) to provide a cross platform environment.

OpenGL Mathematics (GLM),

xizero is a 3d enhanced vertical scroller/shooter. It will run under linux and is a complete software rasterizer featuring flat shading, blinn shadows, fsaa, 32-bit z-buffer utlizing fixed point cordic math. More at: http://atcrosslevel.de

The Mantid application framework provides a platform to support high-performance computing on neutron data. The framework will provide a set of common services, algorithms and data objects that can be extended further by specialised applications or directly by users if required. The main aims of the project are as follows:...