The Gentlemen of the Unicorn Club are no strangers to adventure, but they're about to face their most dangerous foe yet! An evil underground cult, led by the mysterious Nemesis, is working to summon Moloch, an ancient fire demon that will destroy everything in his path.

The World of SMOG: Rise of Moloch takes place on the fog-choked streets of an alternate version of London. Players band together as the Gentlemen of the Unicorn Club and face off against one person controlling the Nemesis and their minions. It's a steampunk Victorian adventure that unfolds over a campaign, leading to a final showdown between good and evil.