Duke Nukem Forever is part four in a series of PC games featuring Duke Nukem as the hero. Parts one (Duke Nukem) and two (Duke Nukem 2) were sidescrollers/platform games, and part three, Duke Nukem 3D, was an FPS. Duke Nukem 3D became one of the top-selling games of all time, and is a very important part of FPS gaming history; it is one of the few "legendary" titles, together with Quake and Doom. The game is one of the most sophisticated FPS games ever. It features everything the Unreal engine has, but also features things like LOD, skeletal animation, and motion capture, for an optimal playing experience.
BFM (Brutal Filemanager) is a mixture between a filemanager and a 3D shoot-'em-up game. In fact, you can't really manage the files yet, just shoot them up. Be carefull when using BFM! Some weapons, such as the shotgun, have spread. So files you didn't really aim at might get ... wasted. Start BFM with the '-s' for safemode and your files shall stay unhurt. It is written in Java and uses the Java3D API.
Open Quartz is a project to supply artwork to create a full game based around the Quake source code. The pak0 module contains content (maps, models, graphics and sounds) and Quake code which controls the behavior and rules of the game. There is also a playable version available that ships with the Darkplaces engine by LordHavoc. The final goal of Openquartz is to become a 100% replacement for the original Quake game data that runs in all the free Quake engines available at present.
"The Game" is a project designed to simplify the process of producing any high-quality cross-platform 2D or 3D graphical computer game. The hope is that any game can be produced simply by changing a few settings and pressing a "compile" button. The project has three "deliverables": a game engine library to abstract across the set of all possible computer games (applying object-oriented design methods to the general problem in such a way as to be usable in specific instances); a graphical interface for easy game design (an exercise in human interface design); and a gaming package with a lot of shiny games to play.