Bonus and Penalty Dice
Source: Call of Cthulhu 7th Edition Investigator’s Handbook
7e Official
📜
Rule Summary
Rules for rolling multiple tens dice when circumstances provide significant advantages or hindrances.
Quick Reference Check:
Bonus Die (+1): Roll 2 tens dice, take lowest total. Penalty Die (-1): Roll 2 tens dice, take highest total.
### When to Use Bonus & Penalty Dice
Bonus and penalty dice represent environmental factors, superior positioning, equipment assistance, or severe impairments without modifying the base skill percentage.
### Rolling the Dice
- Roll **one single units die (1d10)** and **multiple tens dice (1d10s)**:
- **Bonus Die (+1)**: Roll 2 tens dice. Take the tens die that yields the **lowest** (best) total roll.
- **Penalty Die (-1)**: Roll 2 tens dice. Take the tens die that yields the **highest** (worst) total roll.
- **Two Bonus/Penalty Dice (±2)**: Roll 3 tens dice and pick the best/worst.
- *Note*: If the units die is 0 and the chosen tens die is 00, the result is 100.