
- BGG rank
- BGG #1,327
- BGG rating
- 7.4
Warhammer 40,000: Conquest
- 2 players
- 30–60 min
- Complexity 3.1/5
- 2014

Expansion for Call of Cthulhu: The Card Game
2014
Rules assistance for Call of Cthulhu: The Card Game – Denizens of the Underworld
Plain-language explanations of turns, card effects and disputed situations, with official source references and saved question history.

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Answers come from the official rulebook, with the page to check.
Call of Cthulhu: The Card Game – Denizens of the Underworld is an expansion for Call of Cthulhu: The Card Game released in 2014 for 2 players, 30 minutes per game, and ages 13 and up. It was designed by Brad Andres and its main mechanics are Hand Management.
“There are black zones of shadow close to our daily paths, and now and then some evil soul breaks a passage through. When that happens, the man who knows must strike before reckoning the consequences.” –H.P. Lovecraft, The Thing on the Doorstep Denizens of the Underworld is the sixth deluxe expansion for Call of Cthulhu: The Card Game. Rogues and racketeers run amok through the streets of Arkham, controlled by the criminal kingpin himself, Danny O’Bannion. Business is good at The Clover Club, even though the house always wins, and the criminal underworld pursues a host of new tactics to make sure no one ever muscles in on its turf. Denizens of the Underworld introduces 165 new cards to Call of Cthulhu (three copies each of fifty-five individual cards), roughly two-thirds of which provide members of the Syndicate a host of new names for their rosters, as well as deadly tools, and clever tricks. Additionally, the expansion introduces a new Ancient One and new characters and Tactic events for all of the game’s other factions.
Call of Cthulhu: The Card Game – Denizens of the Underworld supports 2 players according to the catalogue. This is the publisher’s listed player count, so the game is designed for exactly that number of participants. Variants for other group sizes, if any, are described in the rulebook of your edition, so check it before setting up a different configuration.
The listed playing time for Call of Cthulhu: The Card Game – Denizens of the Underworld is 30 minutes. This is the publisher’s estimate for a full game. The actual duration depends on the group, the player count and familiarity with the rules: first sessions usually run longer, while experienced groups often finish faster. Setup and teaching time are not included in this estimate.
The catalogue lists Call of Cthulhu: The Card Game – Denizens of the Underworld for ages 13 and up. This is the publisher’s recommendation and reflects reading demands, rule complexity and small components rather than theme alone. Younger players can often join with help from an adult, so check the age guidance on your edition and consider your group’s experience with board games.
Call of Cthulhu: The Card Game – Denizens of the Underworld has a complexity rating of 2.8 out of 5 from BoardGameGeek players, which makes it a medium-light game. The rating reflects how much rules knowledge, planning and decision-making a typical game demands. Expect a longer first teach for heavier games, and use a preparation guide before game night.
Call of Cthulhu: The Card Game – Denizens of the Underworld belongs to these categories: Card Game, Horror, and Expansion for Base-game. Its main mechanics are Hand Management. Categories describe the theme and setting of a game, while mechanics describe what players actually do on their turns. Each mechanic links to a catalogue hub with similar games, which helps when you want something comparable.
The credited designers of Call of Cthulhu: The Card Game – Denizens of the Underworld are: Brad Andres. These credits come from the published game data and name the people responsible for the game’s design, not its illustrators or publishers. Designer pages on MeepleRules collect other titles by the same designers, which helps when you enjoy a game and want to find similar ones.
The catalogue lists Call of Cthulhu: The Card Game – Denizens of the Underworld as an expansion for Call of Cthulhu: The Card Game. Expansions add new content, rules or scenarios to the base game and usually cannot be played on their own, so you need Call of Cthulhu: The Card Game to use it. Check that your edition of Call of Cthulhu: The Card Game is compatible, as some expansions were revised between editions.