BSP is a Quake level editor from the mid ninties (The BSP Homepage). The application is no longer in development and has been given to me by the author to do with what I wish. The original code along with my modified GPL'd version is located here. The modified version is the same source, but just cleaned up. It was interesting coverting the older code and getting rid of a lot of DOS assumtions. See the included CHANGELOG for a list of all of my changes.
File Downloads
Program Requirements
Borland C++ (for the original code)