CppBB will be a fast internet forum written in C++. It runs on a C++-based webserver, all together it will be a fast and simple forum software.

A Qt wrapper for sparsehash,

The General Mission Analysis Tool (GMAT) is a space trajectory optimization and mission analysis system developed by NASA and private industry.

Cinnamon is a spatial analysis library.,

Omega Online Base library. This C++ library encapsulates socket I/O and platform specific syscalls in a minimal set of classes.

This project means to create a MMORG with new gaming ideas and lots of freedom for players. The game should include multiple economies where players play an important role. Players get a social status within these economies ranging from beggars to kings.
...

Galactic Engine 2 or GE2
http://sourceforge.net/projects/ge2/

Is a new 3D engine currently actively in development.

epoll()-based event dispatcher for Qt,

Libev-based event dispatcher for Qt,

Pancada Boxing Style,