The C++ API for using PostgreSQL in client programs.,

Exiv2 is a C++ library and a command line utility to manage image metadata. It provides fast and easy read and write access to the Exif, IPTC and XMP metadata of images in many formats.

OpenNeL is a MMORPG game development platform under GNU General Public License, initially built by Nevrax to power Ryzom (www.ryzom.com), and now maintained by Gameforge. Join the OpenNeL community and develop your own online game as free software!

It contains a 3D engine, network engine, AI and collision engines....

ctypes python module for the Irrlicht Engine SDK,

Intel® Threading Building Blocks (TBB) offers a rich and complete approach to expressing parallelism in a C++ program. It is a library that helps you take advantage of multi-core processor performance without having to be a threading expert. Threading Building Blocks is not just a threads-replacement library. It represents a higher-level, task-based parallelism that abstracts platform details and threading mechanism for performance and scalability....

With ViMRID (Visualise MRI Data), users can explore medical data in a 3D (stereoscopic) environment, and use image processing to visualise data . ViMRID supports stereoscopic viewing, motion sensing, and the DICOM data file format. http://code.google.com/p/vimrid/...

Open-Ragnarok is mainly a free open-source implementation for reading and writing ragnarok online file types.
It's aimed to be multi-platform, developed in C++ with a Python-ready interface.
It reads all major filetypes (GRF, RSM, RSW, GAT, GNT, ACT, SPR) used by the main ragnarok game....

GoboLinux is a modular Linux distribution: it organizes the programs in your system in a new, logical way.

Instead of having parts of a program thrown at /usr/bin, other parts at /etc and yet more parts thrown at /usr/share/something/or/another, each program gets its own directory tree, keeping them all neatly separated and allowing you to see everything that's installed in the system and which files belong to which programs in a simple and obvious way....

SLRN is an NNTP-based newsreader for Unix, VMS, win32, BeOS, and OS/2 systems. Unlike many other newsreaders, SLRN supports color terminals and displays a thread tree.

VideoLAN Movie Creator is a non-linear editing software for video creation based on VLC.