FUGE is a lightweight GUI library, intended to be used primarily in games and tools for game development. Supports graphics renderer adaptation, real-time layout editing, XML serialization, color schemes. Documentation contain tutorials with examples. Available on MS Windows and Linux.
A library for drawing 2D primitive shapes in XNA. The library has methods for drawing pixels, lines, rectangles, filled rectangles, circles, and arcs.
Development moved to: https://bitbucket.org/C3/2d-xna-primitives
Multi-Language Wrapper Collection for the Irrlicht Engine
2licht's aim is to provide a collection of wrappers for the popular Irrlicht Engine (http://irrlicht.sf.net/).
It is still in development; the first wrappers to be released will be the C and Object Pascal interface; followed by a .NET library.
A generic type QuadTree implementation in C# for use with XNA. This QuadTree can store any object that implements the interface IHasRectangle. This provides a means of accessing objects in a virtual space very quickly.
Development moved to: https://bitbucket.org/C3/quadtree/
Nex Input Library (or Nex for short) is an input library for handling multiple simultaneous input devices meant for game developers. Port to UNIX-like systems using MPX is planned, giving full crossplatform support. Planned features include gamepads.
Moved to GITORIOUS: http://gitorious.org/tinythread
TinyThread++ is a minimalist, portable threading library for C++. It is modeled after the current C++0x standard (draft), implementing a subset thereof, and acts as a simple replacement library for compilers that lack support for C++0x.
A C++ library of random useless functions that might make life easier. Project is basically for practice, though you might find the code useful and you could always learn from it.
EasyWindow is an objected orientated GUI Library for C++.
It is very easy to use with similiar GUI structure to PureBasic.
Assumes the most work of the uncomfortable WinAPI on Windows.
Lightweight, cross platform XML processing library for C++. Designed with efficiency and performance (in terms of both CPU and memory usage) as the top priority. Template based, supports multibyte as well as wide character encodings.