The OpenGL Extension Wrangler Library is a simple tool that helps C/C++ developers initialize extensions and write portable applications. GLEW currently supports a variety of operating systems, including Windows, Linux, Darwin, Irix, and Solaris.
Otk (Open Tool Kit) - portable library for graphical user interfaces (GUI's) based on C and OpenGL. Emphasizes simplicity without eliminating capability. Supports panel's, text label's, buttons, form boxes, pull-down menu's, slider control's, etc..
Pure Java tile based map editor. A Cross platform, multi-language tool to create a map file for 2D/3D applications.<p>Un basado en azulejos redactor de mapa en Java. En plataformas múltiples, y idiomas múltiple crea mapas para aplicaciones de 2D/3D.