Inferno
Hell, primarily as described by Dante Alighieri in his Divine Comedy, presented as a campaign setting for role-playing games.
The setting, written by Geoffrey O. Dale, was originally published by the Judges Guild in 1980 and approved by TSR for use with Advanced Dungeons & Dragons. The recent republication and additional supplements are written by the same man, now under his own company (Spellbook Games) and with his own retroclone RPG system (Portal to Adventure).