This fan-created setting adapts the Advanced Dungeons & Dragons (2nd Edition) rules and the Masque of the Red Death to support a milieu derived from the Rysher Entertainment Highlander movie and television series. The sourcebook assumes the players are familiar with the commercial rules, the commercial setting, and the media franchise.
In addition to the sourcebook, a Dungeon Master's Screen and a Player Character Sheet are available (often distributed in a single ZIP archive).
N.B. An early, shorter "Version 2.0" of the document circulated under the title Gothic Earth's Guide to "The Immortals", and was set in Ravenloft.