a game programming library for C/C++ developers distributed freely, supporting the following platforms: DOS, Unix (Linux, FreeBSD, Irix, Solaris, Darwin), Windows, QNX, BeOS and MacOS X. It provides many functions for graphics, sounds, player input, etc..
a free / freeware open source tool for 2-D game development. It is designed for the Windows 9x/DirectX platform, and targeted at people spanning a range of skill levels.
Hardware accelerated 2D full featured middleware for all who want to develop commercial quality 2D games rapidly and easily. It covers all imaginable 2D game genres (DirectX)
With hundreds of published titles, 3D GameStudio authoring suite for 2D, 3D realtime applications. It combines the C-Script programming language with a high-end 3D engine, a 2D engine, a physics engine, a level, terrain and model editor, etc...
a Multiplayer First Person Shooter(MFPS) Game based on the Portuguese colonial war in Africa ( Angola,Mocambique and Guiné ) in the years of 1960 until 25/04/1974
a 2D game development library for the Ruby and C++ programming languages, available for Mac OS X, Windows and Linux. (MSVC++ 2005 needed for the Windows C++ version).