The White Wolf games __Trinity__, __Aberrant__, and
__Adventure__ uses a modified version of the Storyteller mechanic.
There is no longer a varying target number. Instead, the target
number is always 7. Difficulty is represented by requiring more
successes. The following table shows the probability of various die
results using this system.

# of dice | Chance of N Successes | Avg #S | ||||||
---|---|---|---|---|---|---|---|---|

Botch | Fail | 1 | 2 | 3 | 4 | 5 | ||

1d | 10% | 50% | 40% | 0% | 0% | 0% | 0% | 0.4 |

2d | 11% | 25% | 48% | 16% | 0% | 0% | 0% | 0.8 |

3d | 9% | 13% | 43% | 29% | 6% | 0% | 0% | 1.2 |

4d | 7% | 6% | 35% | 35% | 15% | 2% | 0% | 1.6 |

5d | 5% | 3% | 26% | 35% | 23% | 8% | 1% | 2.0 |

6d | 3% | 1% | 19% | 31% | 28% | 14% | 4% | 2.4 |

7d | 2% | 1% | 13% | 26% | 30% | 20% | 8% | 2.8 |

8d | 1% | 0% | 9% | 21% | 28% | 24% | 12% | 3.2 |

9d | 1% | 0% | 6% | 16% | 25% | 25% | 17% | 3.6 |

10d | 1% | 0% | 4% | 12% | 22% | 25% | 21% | 4.0 |

Botching has two features: first that the chance goes up slightly with dice before dropping. Second, that the chance of botching relative to normal failure goes up with dice. i.e. If you are very good at an action, if you fail you are very likely to botch.

John H. Kim <jhkim-at-darkshire-dot-net> Last modified: Fri Feb 7 17:51:43 2003