This is a collection of leftover resources from Freedoom that were used at some point, but replaced. A while back I cleared out all the unused material and moved it to a Subversion directory called "attic" with the hope that people might find it useful. I've gone through the attic (and also some of
Power Metal uses Freedoom textures for better ambiance. Freedoom license file should be included within the archive in which this WAD comes in and it's also incorporated into the .WAD file itself. You can open the .WAD file and view the license with WAD editing program such as SLADE.