Call of Cthulhu 7e cheat sheets
Fast Call of Cthulhu 7e references designed to be used during play. Keep one open at the table or print it.
Quick overview
How rolls work
Call of Cthulhu uses percentile skills: roll d100 and succeed if you roll at or under your skill. Difficulty often shifts the threshold (Regular/Hard/Extreme) and Sanity loss is a core pressure loop.
Full roll resolution sheet →Combat at a glance
Call of Cthulhu 7e combat: d100 roll-under your skill, opposed by the defender. Combat is fast, lethal, and best avoided.
Full combat cheat sheet →All cheat sheets
Combat
Turn order, actions, and reminders.
Roll resolution
A 1-page summary of how to resolve rolls.
Character creation
A checklist you can run during creation.
Advancement
Progression loop summary.
GM checklist
Before-session and during-session reminders.
Sanity
Sanity mechanics, loss sources, and recovery.
Improvement check
Skill improvement rolls between adventures.