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 library of functions for 2D graphics supporting a superset of the PostScript imaging model, designed to be integrated with graphics, artwork, and illustration programs.
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
real-time strategy game similar to Warcraft II released under GPL. Graphics and Textures created from shots of real models made out of plasticine! developed as a project at Faculty of Mathematics and Physics at Charles University, Prague by 6 students
a multi-platform game library for C/C++ developers that provides many functions for graphics, sounds, player input (keyboard, mouse, and joystick), and timers. It also provides fixed and floating point mathematical functions, 3D functions, etc...
a 2D fighting game in the same style as Double Dragon and TMNT. Paintown is very extensible and comes with editors to help design new levels and animations.
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).
Simple DirectMedia Layer is a cross-platform multimedia library designed to provide low level access to audio, keyboard, mouse, joystick, 3D hardware via OpenGL, and 2D video framebuffer.
physics engine written primarily for games. As the name suggests, Box2D is a purely 2D engine. However, Box2D has grown beyond it's humble box simulating roots, and can now handle convex polygons and other shapes coming soon.