Opengl

Riddle me this:

If OpenGL is supposed to be just as good if not even better than Direct3D (Not talking about DirectX here), then why don't developers use OpenGL to program their games generating some extra sales on GNU/Linux and Macintosh?

Because Microsoft is made of greedy, monopolizing fucks.

1. Microsoft pays graphics card designers to purposely gimp their OpenGL performance. When you buy a "workstation" card, you're getting almost the exact same thing as the equivalent "consumer level" card, but with a slightly different firmware.

2. Microsoft pays game development companies to spend more work on the D3D renderers than on the OpenGL renderers

On top of that, D3D is a horrible mess of a library. Its only saving grace from a design standpoint is that it's tightly integrated with other game-related libraries (DirectSound, etc) so that developers don't have to spend forever trying to figure out which libraries to use along with their OpenGL instance/whatever.