My perfect SDK

The development of the COOP or DIE modification for Quake2 started in 2001. Here a list of the software tools used:

Game engine and original content
My modification use the Quake II first person shooter released on December 1997 by id Software. The Quake II Source Code was released under the GNU-GPL license on December 2001.
Operating system
Microsoft Windows XP, and later, Microsoft Windows Vista
C language compiler / debugger / IDE:
At start I've used Microsoft Visual C++ 6.0. Since 2009 I use Visual C++ 2008 Express Edition (available for free).
PHP language editor / IDE
I use my favorite text editor UltraEdit, for PHP, HTML, CSS ...etc.
For a time I have used Eclipse with PDT, but finally come back to UltraEdit with Ctags.
Local Apache / My-SQL / Php server for testing
At start I've used EasyPhp, since 2008 I use WAMP.
3D Mapping tool
GtkRadiant (GNU-GPL)
Drawing tool
GIMP (GNU-GPL)
FTP tool
FileZilla (GNU-GPL)

Game engine and original content