Caliban (Arduin dungeon)
Caliban cover (by Greg Espinoza)
|Designer(s)||David A. Hargrave|
Caliban (also known as Arduin Dungeon Number One) was a standalone short story and gaming module written in 1979 by David A. Hargrave and published by Grimoire Games. It was based upon Hargrave's gaming system known as Arduin. It is the first of only four standalone "dungeon" books created by Hargrave as an extension of his Arduin Multiverse, which at the time of Caliban's publication was known as The Arduin Trilogy.
At 25 pages long, Caliban contained maps with room descriptions and trap matrices, four full dungeon/tower levels with maps and room descriptions (one level is an intricate cavern system), eight pocket sized magic artifact cards and eight illustrated monster cards with statistics. The package also contained a set of 16 unique creature and treasure cards, which could be detached and used in-game and 26 unique new traps in a matrix at the rear of the module. 
Cover art was contributed by Greg Espinoza.
While specifically designed for use with the Arduin gaming system, Caliban was usable with any D&D-derived RPG system. The module was recommended for characters level 12 or higher (in the Arduin universe).
Caliban was originally published by Grimoire Games and went out of print in 1986. In 2002 reprints of Caliban were made available from Emperor's Choice Games and Miniatures, but were discontinued in August 2006. Since then, the company folded Caliban and all other Arduin dungeon modules into a single publication called "Vaults of the Weaver". 
- The Howling Tower: Arduin Dungeon Number Two
- The Citadel of Thunder: Arduin Dungeon Number Three
- Death Heart: Arduin Dungeon Number Four