The Arcanum

A book billed as a 'fantasy role-playing game supplement' but which also contains complete rules for independent play. Based on a Dungeons and Dragons-like system it contains its own set of nine abilities and suggestions for conversion between systems.

This reference has a breadth of ideas within it, including over thirty professions (classes) and a sophisticated magic system including spells, signs and symbols, alchemical and magical mixtures and magical devices.