Harlan Katz was one of the major NPCs in my old Blackwater Falls campaign. This campaign had something of a Jules Verne, steampunk atmosphere. Katz was a visionary machinist, totally ruthless, who believed that the future belonged to his mechanical creations, rather than the archaic and unreliable powers of wizards, and was constructing a utopia called Katzland. He built all kind of robots and golems which were frequent antagonists to the PCs (at least when I was refereeing).

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