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Call of Cthulhu vs City of Mist

Compare Call of Cthulhu and City of Mist side by side. See differences in complexity, dice, genre, and more.

Call of CthulhuCity of Mist
GenreHorror, ModernModern
TagsInvestigation, Fear & Stress Mechanics, Mystery, Deadly, Corruption, Skill-Based, Atmospheric, One-Shot Friendly, Character-Driven, NarrativeNarrative, Investigation, Mystery, Roleplay-Heavy, Fiction-First, Noir, Urban Fantasy, Drama, Tag-Based
Core MechanicRoll d100 equal to or below a skill or characteristic. Hard and Extreme tests use half and one-fifth of that rating. Bonus and penalty dice select a better or worse tens digit. Eligible failed skill rolls can be pushed by taking further action, risking a harsher consequence.Roll 2d6 + invoked tags. Characters have no numerical stats: instead they invoke narrative tags from their Mythos (legendary) and Logos (mundane) themes. 7–9 partial success, 10+ full success. Statuses replace HP on a 1–6 tier track.
Diced1002d6
ComplexityMediumMedium
AvailabilityFree quickstartFree quickstart
Runnability5 of 5 book tools4 of 5 book tools
LicenseChaosium Fan Material PolicyCommunity content (Cauldron of Mist)
Third-Party PublishingCommercial publishing allowed — Community content programNot yet researched
Summary only, not legal advice. Check current terms before publishing.
PublisherChaosiumSon of Oak Game Studio
Year20142019
LanguagesEnglish, French, German, Italian, Japanese, Korean, Spanish, Polish, Portuguese, Russian, Swedish, ChineseEnglish, Italian, German, Spanish
Best ForGroups who want clue-driven horror with ordinary investigators and lasting consequences. Suits focused mysteries and campaigns where survival matters more than defeating every threat.Groups who want noir-style investigations in a modern city where characters channel mythological archetypes: balancing mundane lives with legendary powers.
HighlightsPushing a failed roll offers another chance at the goal with a more serious consequence if it fails. Learning Mythos lore reduces maximum Sanity, tying useful knowledge to lasting vulnerability. An Idea roll gets a stalled investigation moving again, with failure putting investigators into danger.Tag system makes every character unique, investigation mechanics are well-designed, layered interplay between mythic and mundane identity
ConsiderationsA major wound can leave an investigator dying, making direct confrontation dangerous. Bouts of madness temporarily place investigator actions under Keeper control. Foot and vehicle chases track relative speed and movement actions, adding a separate procedure to pursuit scenes.Tag-based resolution takes adjustment from traditional RPGs, heavily tied to its urban noir setting, two-book format can feel expensive, prep-intensive for the MC