Call of Cthulhu
7th EditionBest For
Groups who want clue-driven horror with ordinary investigators and lasting consequences. Suits focused mysteries and campaigns where survival matters more than defeating every threat.
Core Mechanic
Roll 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.
The percentile core makes each skill rating an immediately readable chance of success. Sanity adds thresholds for breakdowns and distinct recovery procedures. Combat and chases add opposing rolls and action choices that take practice.
- Free to tryQuickstartA free starter you can actually play
- Get it nowSold newIn print or as a legal PDF
- ✓IndexFind any rule by page number
- ✓GM guidanceA chapter on how to run the game
- ✓Examples of playRules shown in action at the table
- ✓Quick referenceCheat sheet or summary tables
- ✓Cross-referencesRules point to each other by page
5 of 5 book tools found in the core book
Highlights
Pushing 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.
Considerations
A 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.
Third-Party Publishing
Rules license Chaosium Fan Material Policy
Original scenarios, settings, spells, creatures, and other playable material for Call of Cthulhu 7th Edition published through the Miskatonic Repository. Material Chaosium publishes under license from third parties is excluded.
Creators receive 50% of sales. Program works must remain within authorized distribution channels; required credits and content restrictions apply.
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