| Percentile Dice | Two 6-sided Dice | Result |
|---|---|---|
| 00-04 | 2 | explodes on launch |
| 05-09 | 3 | Dud Warhead |
| 10-22 | 4 | Bomb Shelters save 2 mil |
| 23-35 | 5 | Additional 1 mil engulfed in fireball |
| 36-49 | 6 | No appreciable fallout |
| -- | 7 | Roll again |
| 50-63 | 8 | Fallout kills another 2 mil |
| 64-76 | 9 | Beta Rays kill another 5 mil |
| 77-89 | 10 | Gamma Rays kill another 10 mil |
| 90-94 | 11 | Double yield |
| 95-99 | 12 | Triple yield |