Prototype: Master of the Underworld

2006 · Sourcebook (rules/options to enhance play)

Prototype: Master of the Underworld

This 8-page PDF presents the Master of the Underworld, a masked criminal genius who serves as a nemesis for pulp heroes. It details his hidden identity, criminal resources, unusual tactics, and weapons created through weird science. Designed for Game Masters, the supplement adds depth to d20 pulp campaigns, including settings such as Haven: City of Bronze.

Skill Based (buy or gain skills)Attribute/Stat Based (STR, CON, PER, etc)Level Based (Earn XP and level up)

Game facts (players, playing time, age, credits) from BoardGameGeek.