Programmatic landing page

Character builder for Call of Cthulhu 7th Edition

Create characters fast with a guided flow and an online sheet. Links below take you directly to the most relevant guides and tools for Call of Cthulhu 7th Edition.

Quick workflow

Open the tool and set the system.
Use the system’s roll loop to keep outcomes consistent.
Track only the numbers/resources that matter for this scene.
After the scene: update your sheet so the next session starts clean.

Roll loop reminder

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.

Example: Spot Hidden 55%: a roll of 42 succeeds; a harder threshold would require a lower roll.

Examples

Example: use it during a session

Keep the tool page open, apply one consistent roll loop, and update the sheet immediately after a scene so the next roll starts from the truth.

Example: solve a disagreement fast

If the table argues about a rule, use one reference page, apply it once, then move on. Consistency beats perfection mid-session.

Common mistakes (smallest fix)

Mistake: opening too many tabs and losing the source of truth. Fix: keep one “primary” page open (sheet or reference) and link out only when needed.
Mistake: rolling without stakes. Fix: state what success changes and what failure costs before rolling.

Copyable facts

Percentile skill system: Roll d100, succeed if equal to or below skill rating
8 Characteristics: STR, CON, POW, DEX, APP, SIZ, INT, EDU
Occupation system: Each occupation grants skill bonuses and Credit Rating range
Sanity mechanics: Starts at 99-POW, decreases with Mythos encounters
Skill improvement: Mark skills during play, improve after sessions
Derived stats: HP, Sanity, MP, Build, Damage Bonus calculated from Characteristics

Quick overview

Call of Cthulhu 7th Edition is a horror investigation roleplaying game based on H.P. Lovecraft's Cthulhu Mythos. Players take on the roles of Investigators, ordinary people who uncover cosmic horrors beyond human comprehension. As you investigate mysteries, your character's Sanity slowly erodes, skills improve through use, and the line between reality and madness blurs.

System guide

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System glossary

Browse terms used in this system.