 "The Howling Tower" was originally published by Grimoire Games and went out of print in 1984.In 2002 reprints of "The Howling Tower" were made available from Emperor's Choice Games and Miniatures, but were discontinued in August 2006.Since then, the company folded "The Howling Tower" and all other Arduin dungeon modules into a single publication called "Vaults of the Weaver".