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Dice mechanics

Contested rolls in Call of Cthulhu 7th Edition

Opposed checks and ties.

Explanation

Opposed checks in CoC compare outcomes on the percentile scale. Use them when two actors directly compete and the scene needs a clear winner.

Examples
Example: direct contest

Use opposed rolls when two actors directly compete (chase, grapple, deception vs insight). Resolve it quickly and move on.

Example: avoid unnecessary contests

If the opposition is passive (a lock, a cliff), use a DV/DC instead of rolling twice.

Common mistakes (smallest fix)
  • Mistake: Using contests for everything. Fix: Use contests only for direct opposition; use DV/DC for passive obstacles.
  • Mistake: Re-rolling until someone wins. Fix: One contest should change the situation enough to move the scene forward.
More dice mistakes

Call of Cthulhu 7th Edition FAQ

How does the percentile system work in Call of Cthulhu?
How does the skill improvement system work?
What are the Characteristics in Call of Cthulhu 7e?
How does Sanity work in Call of Cthulhu?
What are Occupations in Call of Cthulhu?

Keep play fast

Use quick references, then jump back into the scene.