A Slight Mistake: GM's Guide

User summary: The GM's Guide recapitulates the basic game rules and provides extensive information on magical spells that may be available. Several character builds are provided. The bulk of the product, however, details the setting of the vast Dyson Sphere in which the game takes place (including several maps). The product occasionally refers to the game as A Slight Mistake in the Code though usually uses only A Slight Mistake.