The Caverns of Mordia The Caverns of Mordia, an Apple II adventure game originally published in 1980, has been re-released by its author, Hans Coster. This previously unreleased version, produced in collaboration with WOzFest 5¼", adds new features, removes the original’s copy protection, and includes an updated manual. A disk image of the game and PDF of the manual can be found in the Internet Archive.