As already noted by vapier in bug 7200 comment #2, the license of this package is not clear. The largest source file combat.c has a GPL-2+ license notice. Other source files don't come with any copyright or license notice, and README says "All rights reserved." I am going to ask for clarification from upstream. Otherwise, this will be moved to "GPL-2+ all-rights-reserved" and mirror/bindist restriction.
(In reply to Ulrich Müller from comment #0) > I am going to ask for clarification from upstream. No reply. However, the tarball contains a LICENSE file with a BSD license (3-clause BSD, with a request for sending patches disguised as a 4th clause). I believe that LICENSE="BSD" will be close enough, so that we don't need a separate license file. Strange that I've missed the LICENSE file in the tarball when I looked first. BTW, the package doesn't build. Bug 507932 now.