👁️Call of Cthulhu 7E Dice Roller
Percentile horror investigation. Free, no sign-up required.
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Learn More About Call of Cthulhu 7E
Features
System-accurate dice rolling with all the mechanics you need for Call of Cthulhu 7E.
- d100 percentile system
- Hard & Extreme successes
- Bonus & Penalty dice
- Sanity & Luck mechanics
- Automatic success calculation
- Visual dice display
How It Works
Enter your skill value and select any modifiers (Bonus or Penalty dice), then roll. Our CoC dice roller automatically calculates Hard (half skill) and Extreme (one-fifth skill) success levels, making it easy to determine your roll outcome.
Pro tips
Remember that rolling 00 (100) is always a failure, and rolling 01-05 is always a success, regardless of your skill level. Use Bonus dice when you have advantages, and Penalty dice when circumstances are against you.
FAQ
How do Hard and Extreme successes work?
Hard success occurs when you roll equal to or less than half your skill value. Extreme success occurs when you roll equal to or less than one-fifth your skill value. These provide better outcomes than regular successes.
What are Bonus and Penalty dice?
Bonus dice give you an extra d10 to roll, taking the better result. Penalty dice give you an extra d10, taking the worse result. These represent favorable or unfavorable circumstances.
Do I need to sign up to roll dice?
No! Our dice roller is completely free to use without any sign-up. Just visit the page and start rolling. Sign up only if you want to track your roll history or create characters.
Other Dice Systems
Ready to create characters?
Sign up for free to create and manage Call of Cthulhu 7E characters, track your dice roll history, and access advanced features!