• Games Master: Derek Zimmer
  • Gaming System: Cthulhu by Gaslight
  • Players: 3-6
  • Duration: 3 hours
  • Sign Up at the main Registration Desk in the Atrium Lobby

In just one week, the Columbian Exposition will open to the world. Designed as a ‘city of the future,’ the Fair architects made the decision to light the entire Fair with only electric lights rather than the standard gas lamps. Additionally, an entire building has been devoted to the electrical inventions of the world, aptly named the Electricity Building.

Over the last few weeks, exhibitors have been furiously assembling their breakthrough discoveries in the Electricity Building ahead of opening day. In just the last few days however, the building has been plagued with strange occurrences and machinery malfunctions, with no obvious cause. With reputations at stake, tensions are high to find the source of the problems, and everyone wants to make sure they aren’t the ones at fault. Rumors of bad planning, poor build quality, and even deliberate sabotage have spread throughout both Fair staff and exhibitors.

Most of the large companies have taken to staff at least one employee on site at all times and the Fair has agreed to hire additional security. Even with these increased precautions, the electrical problems have continued and no one has any evidence what is causing the issues. The investigators have all been assigned to the night shift on April 30th, 1893and all have different objectives ranging from protecting company assets to discovering the source of the disturbances.


Cthulhu by Gaslight is the Victorian incarnation of the classic Call of Cthulhu RPG. Gaslightprovides variations to capture Victorian history and societal norms, but is essentially the same rule system as the original 1920’s Cthulhu RPG. If you are not already familiar with these rules but would like to get better acquainted, click on the cover below to access the free starter kit for the latest edition of Call of Cthulhu.


Derek Zimmer has played and run various tabletop RPGs including DnD, Pathfinder, and Call of Cthulhu (CoC) for over 10 years. He is a member of Chaosium’s GM program (The Cult of Chaos) which is dedicated to introducing new players to CoC. He has found a passion for running CoC games and teaching the system to new players. Derek is also a community content author who has published CoC scenarios through the Miskatonic Repository. As a resident of Chicago, Derek is interested in the city’s history and was inspired to write “Shocking Sabotage,” which will be debuting at the 2025 Chicago Steampunk Exposition.


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