World War Cthulhu RPG Essentials:
- No. of players: 2 +
- Playing time: ∞
World War Cthulhu RPG - Rules of Play says:
World War Cthulhu: The Darkest Hour is a World War 2 setting book for Call of Cthulhu from the multi-award-winning team of Dominic McDowall, Gareth Ryder-Hanrahan, Jason Durall, Stuart Boon, Martin Dougherty & Ken Spencer (writers) and Jon Hodgson, Paul Bourne, Scott Neil, Scott Purdy & Steffon Worthington (artists).