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Brindlewood Bay vs Call of Cthulhu

Compare Brindlewood Bay and Call of Cthulhu side by side. See differences in complexity, dice, genre, cost, and more.

Brindlewood BayCall of Cthulhu
GenreHorror, ModernHorror, Modern
Play StyleInvestigation, Mystery, Collaborative, Player-Only Rolls, Narrative, Fiction-First, Character-Driven, Atmospheric, CorruptionInvestigation, Deadly, One-Shot Friendly, Atmospheric, Roleplay-Heavy, Mystery, Horror, Corruption, Skill-Based
Core MechanicPbtA framework: roll 2d6 plus ability modifier, with 10+ as a strong hit, 7–9 as a hit with complication, and 6 or less as a miss. Mysteries have no pre-written solution; players gather clues through the Meddling Move, then use the Theorize move to propose a solution and roll to see if it is correct. The Theorize roll adds the number of clues found minus the mystery's complexity rating (6–8). Putting on a Crown after any roll lets a player bump the result up one tier at the cost of marking narrative consequences on their character sheet.Roll d100 equal to or under your skill percentage. Success tiers at half (Hard) and one-fifth (Extreme) of the skill value. Bonus and penalty dice adjust the tens digit. Failed rolls can be pushed for a second attempt at greater risk.
Dice2d6d100
ComplexityLowMedium
AccessibilityMediumHigh
RunnabilityLowVery High
LicenseCarved from Brindlewood (third-party content license)Chaosium Fan Material Policy
Cost$$$$
PublisherThe GauntletChaosium
Year20222014
Best ForGroups who want a collaborative mystery game where players piece together clues and collectively theorize solutions, blending cozy small-town charm with creeping cosmic horrorInvestigation-driven horror where combat is deadly and sanity is fragile. Great for one-shots.
HighlightsMysteries have no predetermined solution: players gather clues, then Theorize to assemble the answer themselves. The Day/Night structure balances cozy daytime vignettes against dangerous nighttime investigation. The Crown lets a player bump a roll up one tier in exchange for marking long-term character consequences.Tracking Sanity as a depletable score ties mental erosion to the fiction, so confronting cosmic horror mechanically wears characters down. The percentile skills resolve on a d100 roll-under, with Hard and Extreme bands at half and one-fifth of the rating. Bouts of Madness convert failed Sanity checks into temporary phobias, manias, or loss of character control.
ConsiderationsKeeper must improvise heavily since mysteries have no fixed solutions, Day/Night move split requires tracking time of day carefully, the dark conspiracy campaign arc may not appeal to groups who only want standalone mysteries, combat is not a focus and physical danger is resolved through the same general moves as everything elseThe chase rules add a detailed positioning subsystem whose complexity outweighs how often it sees use. Character creation allocates points across a long list of skills, a slow first step for new players. In long campaigns the sanity spiral can strip a character of player control as madness accumulates.